# Tag errors

**URL:** <https://forum.inductiveautomation.com/t/tag-errors/4701>\
**Category:** Ignition\
**Created:** [June 25, 2012, 6:05pm UTC](https://forum.inductiveautomation.com/t/tag-errors/4701 "2012-06-25T18:05:01Z")\
**Posts on this page:** 9\
**Page:** 1

<div class="post-metadata">

**Author:** ![AJBerera](https://avatars.discourse-cdn.com/v4/letter/a/9fc29f/32.png) [@AJBerera](https://forum.inductiveautomation.com/u/AJBerera)\
**Post date:** [June 25, 2012, 6:05pm UTC](https://forum.inductiveautomation.com/t/tag-errors/4701/1 "2012-06-25T18:05:01Z")

</div>

I’m having this issue again now. Started right after modifying a UDT that already had several tags associated with it. Restarting the gateway several times did not work for me.

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<div class="post-metadata">

**Author:** ![greg.simpson](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/greg.simpson/32/3135_2.png) [@greg.simpson](https://forum.inductiveautomation.com/u/greg.simpson)\
**Post date:** [June 25, 2012, 6:09pm UTC](https://forum.inductiveautomation.com/t/tag-errors/4701/2 "2012-06-25T18:09:47Z")

</div>

How did you modify the UDT?

What is the error?

More information is always better than too little…

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<div class="post-metadata">

**Author:** ![AJBerera](https://avatars.discourse-cdn.com/v4/letter/a/9fc29f/32.png) [@AJBerera](https://forum.inductiveautomation.com/u/AJBerera)\
**Post date:** [June 25, 2012, 6:10pm UTC](https://forum.inductiveautomation.com/t/tag-errors/4701/3 "2012-06-25T18:10:58Z")

</div>

i deleted a couple of the tags inside that is didn’t think were being used anywhere in the project. I also took a backup, not sure where to send it, but the last time this happened, it was suggested…

INFO [main-Designer-Startup] Downloading… [+0]  
INFO [main-Designer-Startup] Cleanup… [+1485]  
INFO [main-Designer-Startup] Initializing UI… [+1486]  
INFO [DatasourceTagManager-Designer-Startup] Starting up polling tag manager, polling rate: 750ms  
INFO [main-Designer-Startup] Starting module: Vision [+5738]  
INFO [DatasourceTagManager-SQLTags-TreeLoader-thread-1] Starting SQLTags polling.  
ERROR [TagProviderNode-SQLTags-TreeLoader-thread-1] Error loading tags underneath  
java.lang.RuntimeException: com.inductiveautomation.ignition.client.gateway\_interface.GatewayException: Error executing gateway function.  
at com.inductiveautomation.ignition.client.sqltags.impl.db.DatasourceTagManager.browse(DatasourceTagManager.java:491)  
at com.inductiveautomation.ignition.client.sqltags.impl.db.DatasourceTagManager.browse(DatasourceTagManager.java:473)  
at com.inductiveautomation.ignition.client.sqltags.impl.ClientTagManagerImpl.browse(ClientTagManagerImpl.java:265)  
at com.inductiveautomation.ignition.designer.sqltags.tree.TagProviderNode.loadTagChildren(TagProviderNode.java:75)  
at com.inductiveautomation.ignition.designer.sqltags.tree.TagProviderNode.loadChildren(TagProviderNode.java:63)  
at com.inductiveautomation.ignition.designer.sqltags.tree.AbstractTagPathTreeNode$Loader.run(AbstractTagPathTreeNode.java:79)  
at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)  
at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source)  
at java.util.concurrent.FutureTask.run(Unknown Source)  
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)  
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)  
at java.lang.Thread.run(Unknown Source)  
Caused by: com.inductiveautomation.ignition.client.gateway\_interface.GatewayException: Error executing gateway function.  
at com.inductiveautomation.ignition.client.gateway\_interface.GatewayInterface.newGatewayException(GatewayInterface.java:312)  
at com.inductiveautomation.ignition.client.gateway\_interface.GatewayInterface.sendMessage(GatewayInterface.java:286)  
at com.inductiveautomation.ignition.client.gateway\_interface.GatewayInterface.sendMessage(GatewayInterface.java:243)  
at com.inductiveautomation.ignition.client.gateway\_interface.GatewayInterface.invoke(GatewayInterface.java:783)  
at com.inductiveautomation.ignition.client.sqltags.impl.db.DatasourceTagManager.browse(DatasourceTagManager.java:488)  
… 11 more  
Caused by: java.lang.NullPointerException  
at com.inductiveautomation.ignition.gateway.sqltags.providers.AbstractStoreBasedTagProvider.wrapTagsToDef(AbstractStoreBasedTagProvider.java:1187)  
at com.inductiveautomation.ignition.gateway.sqltags.providers.AbstractStoreBasedTagProvider.browse(AbstractStoreBasedTagProvider.java:1142)  
at com.inductiveautomation.ignition.gateway.sqltags.providers.RedundantProviderWrapper.browse(RedundantProviderWrapper.java:123)  
at com.inductiveautomation.ignition.gateway.sqltags.SQLTagsManagerImpl.browse(SQLTagsManagerImpl.java:405)  
at com.inductiveautomation.ignition.gateway.project.ProjectSettingsCache$ProjectDefaultTagManagerFacade.browse(ProjectSettingsCache.java:495)  
at com.inductiveautomation.ignition.gateway.servlets.gateway.functions.SQLTags.browse(SQLTags.java:124)  
at sun.reflect.GeneratedMethodAccessor48.invoke(null)  
at sun.reflect.DelegatingMethodAccessorImpl.invoke(null)  
at java.lang.reflect.Method.invoke(null)  
at com.inductiveautomation.ignition.gateway.servlets.gateway.AbstractGatewayFunction.invoke(AbstractGatewayFunction.java:176)  
at com.inductiveautomation.ignition.gateway.servlets.Gateway.doPost(Gateway.java:398)  
at javax.servlet.http.HttpServlet.service(HttpServlet.java:637)  
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)  
at com.inductiveautomation.ignition.gateway.bootstrap.MapServlet.service(MapServlet.java:85)  
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)  
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)  
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)  
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)  
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)  
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)  
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)  
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:286)  
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:845)  
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)  
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)  
at java.lang.Thread.run(null)

INFO [main-Designer-Startup] Starting module: SQL Bridge [+55669]  
INFO [main-Designer-Startup] Starting module: Mobile [+56952]  
INFO [main-Designer-Startup] Starting module: Reporting [+56955]  
INFO [ReportingDesignerHook-Designer-Startup] Starting up Reporting Module. Mode: Activated  
Initializing ReportMill (Build Date: May-27-05, Version 9.0, JVM 23.0-b21, User Bigschottkeyd)  
INFO [main-Designer-Startup] Starting module: Symbol Factory [+58828]  
INFO [main-Designer-Startup] Initializing Scripting… [+59440]  
INFO [main-Designer-Startup] Starting Tag System… [+59440]  
ERROR [ProjectTag-Designer-Startup] Error creating tag binding.  
java.lang.RuntimeException: Invalid tag path: ‘Root Container.MotorID/RUNNING’. Token PATH\_SEPARATOR found after property name.  
at com.inductiveautomation.factorypmi.application.binding.util.BindUtilities$Binder.createBoundExpression(BindUtilities.java:226)  
at com.inductiveautomation.ignition.common.expressions.parsing.CUP$ELParser$actions.CUP$ELParser$do\_action(ELParser.java:587)  
at com.inductiveautomation.ignition.common.expressions.parsing.ELParser.do\_action(ELParser.java:323)  
at java\_cup.runtime.lr\_parser.parse(lr\_parser.java:569)  
at com.inductiveautomation.ignition.common.expressions.parsing.ELParserHarness.parse(ELParserHarness.java:22)  
at com.inductiveautomation.factorypmi.application.sqltags.project.ProjectTag.createTagBinding(ProjectTag.java:83)  
at com.inductiveautomation.factorypmi.application.sqltags.project.ProjectTag.startBindingImpl(ProjectTag.java:117)  
at com.inductiveautomation.factorypmi.application.sqltags.project.ProjectTag.startBinding(ProjectTag.java:107)  
at com.inductiveautomation.factorypmi.application.sqltags.ClientTagFolder.startBinding(ClientTagFolder.java:152)  
at com.inductiveautomation.factorypmi.application.sqltags.project.ProjectTagManager.startup(ProjectTagManager.java:418)  
at com.inductiveautomation.ignition.client.sqltags.impl.ClientTagManagerImpl.startup(ClientTagManagerImpl.java:145)  
at com.inductiveautomation.ignition.designer.IgnitionDesigner.loadProject(IgnitionDesigner.java:986)  
at com.inductiveautomation.ignition.designer.IgnitionDesigner$StartupProjectDialogHandler$1.run(IgnitionDesigner.java:379)  
at java.lang.Thread.run(Unknown Source)  
Caused by: com.inductiveautomation.ignition.common.sqltags.parser.TagPathFormatException: Token PATH\_SEPARATOR found after property name.  
at com.inductiveautomation.ignition.common.sqltags.parser.TagPathParser.\_parse(TagPathParser.java:197)  
at com.inductiveautomation.ignition.common.sqltags.parser.TagPathParser.access$200(TagPathParser.java:25)  
at com.inductiveautomation.ignition.common.sqltags.parser.TagPathParser$ParseFunction.apply(TagPathParser.java:387)  
at com.inductiveautomation.ignition.common.sqltags.parser.TagPathParser$ParseFunction.apply(TagPathParser.java:383)  
at com.google.common.collect.ComputingConcurrentHashMap$ComputingValueReference.compute(ComputingConcurrentHashMap.java:355)  
at com.google.common.collect.ComputingConcurrentHashMap$ComputingSegment.compute(ComputingConcurrentHashMap.java:184)  
at com.google.common.collect.ComputingConcurrentHashMap$ComputingSegment.getOrCompute(ComputingConcurrentHashMap.java:153)  
at com.google.common.collect.ComputingConcurrentHashMap.getOrCompute(ComputingConcurrentHashMap.java:69)  
at com.google.common.collect.ComputingConcurrentHashMap$ComputingMapAdapter.get(ComputingConcurrentHashMap.java:393)  
at com.inductiveautomation.ignition.common.sqltags.parser.TagPathParser.parse(TagPathParser.java:168)  
at com.inductiveautomation.ignition.common.sqltags.parser.TagPathParser.parse(TagPathParser.java:154)  
at com.inductiveautomation.ignition.common.sqltags.parser.TagPathParser.parse(TagPathParser.java:113)  
at com.inductiveautomation.factorypmi.application.binding.util.BindUtilities$Binder.createBoundExpression(BindUtilities.java:198)  
… 13 more  
INFO [main-Designer-Startup] Initializing UI… [+59487]  
ERROR [TagProviderNode-SQLTags-TreeLoader-thread-1] Error loading tags underneath  
java.lang.RuntimeException: com.inductiveautomation.ignition.client.gateway\_interface.GatewayException: Error executing gateway function.  
at com.inductiveautomation.ignition.client.sqltags.impl.db.DatasourceTagManager.browse(DatasourceTagManager.java:491)  
at com.inductiveautomation.ignition.client.sqltags.impl.db.DatasourceTagManager.browse(DatasourceTagManager.java:473)  
at com.inductiveautomation.ignition.client.sqltags.impl.ClientTagManagerImpl.browse(ClientTagManagerImpl.java:265)  
at com.inductiveautomation.ignition.designer.sqltags.tree.TagProviderNode.loadTagChildren(TagProviderNode.java:75)  
at com.inductiveautomation.ignition.designer.sqltags.tree.TagProviderNode.loadChildren(TagProviderNode.java:63)  
at com.inductiveautomation.ignition.designer.sqltags.tree.AbstractTagPathTreeNode$Loader.run(AbstractTagPathTreeNode.java:79)  
at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)  
at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source)  
at java.util.concurrent.FutureTask.run(Unknown Source)  
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)  
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)  
at java.lang.Thread.run(Unknown Source)  
Caused by: com.inductiveautomation.ignition.client.gateway\_interface.GatewayException: Error executing gateway function.  
at com.inductiveautomation.ignition.client.gateway\_interface.GatewayInterface.newGatewayException(GatewayInterface.java:312)  
at com.inductiveautomation.ignition.client.gateway\_interface.GatewayInterface.sendMessage(GatewayInterface.java:286)  
at com.inductiveautomation.ignition.client.gateway\_interface.GatewayInterface.sendMessage(GatewayInterface.java:243)  
at com.inductiveautomation.ignition.client.gateway\_interface.GatewayInterface.invoke(GatewayInterface.java:783)  
at com.inductiveautomation.ignition.client.sqltags.impl.db.DatasourceTagManager.browse(DatasourceTagManager.java:488)  
… 11 more  
Caused by: java.lang.NullPointerException  
at com.inductiveautomation.ignition.gateway.sqltags.providers.AbstractStoreBasedTagProvider.wrapTagsToDef(AbstractStoreBasedTagProvider.java:1187)  
at com.inductiveautomation.ignition.gateway.sqltags.providers.AbstractStoreBasedTagProvider.browse(AbstractStoreBasedTagProvider.java:1142)  
at com.inductiveautomation.ignition.gateway.sqltags.providers.RedundantProviderWrapper.browse(RedundantProviderWrapper.java:123)  
at com.inductiveautomation.ignition.gateway.sqltags.SQLTagsManagerImpl.browse(SQLTagsManagerImpl.java:405)  
at com.inductiveautomation.ignition.gateway.project.ProjectSettingsCache$ProjectDefaultTagManagerFacade.browse(ProjectSettingsCache.java:495)  
at com.inductiveautomation.ignition.gateway.servlets.gateway.functions.SQLTags.browse(SQLTags.java:124)  
at sun.reflect.GeneratedMethodAccessor48.invoke(null)  
at sun.reflect.DelegatingMethodAccessorImpl.invoke(null)  
at java.lang.reflect.Method.invoke(null)  
at com.inductiveautomation.ignition.gateway.servlets.gateway.AbstractGatewayFunction.invoke(AbstractGatewayFunction.java:176)  
at com.inductiveautomation.ignition.gateway.servlets.Gateway.doPost(Gateway.java:398)  
at javax.servlet.http.HttpServlet.service(HttpServlet.java:637)  
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)  
at com.inductiveautomation.ignition.gateway.bootstrap.MapServlet.service(MapServlet.java:85)  
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)  
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)  
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)  
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)  
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)  
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)  
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)  
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:286)  
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:845)  
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)  
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)  
at java.lang.Thread.run(null)  
ERROR [TagProviderNode-SQLTags-TreeLoader-thread-1] Error loading tags underneath  
java.lang.RuntimeException: com.inductiveautomation.ignition.client.gateway\_interface.GatewayException: Error executing gateway function.  
at com.inductiveautomation.ignition.client.sqltags.impl.db.DatasourceTagManager.browse(DatasourceTagManager.java:491)  
at com.inductiveautomation.ignition.client.sqltags.impl.db.DatasourceTagManager.browse(DatasourceTagManager.java:473)  
at com.inductiveautomation.ignition.client.sqltags.impl.ClientTagManagerImpl.browse(ClientTagManagerImpl.java:265)  
at com.inductiveautomation.ignition.designer.sqltags.tree.TagProviderNode.loadTagChildren(TagProviderNode.java:75)  
at com.inductiveautomation.ignition.designer.sqltags.tree.TagProviderNode.loadChildren(TagProviderNode.java:63)  
at com.inductiveautomation.ignition.designer.sqltags.tree.AbstractTagPathTreeNode$Loader.run(AbstractTagPathTreeNode.java:79)  
at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)  
at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source)  
at java.util.concurrent.FutureTask.run(Unknown Source)  
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)  
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)  
at java.lang.Thread.run(Unknown Source)  
Caused by: com.inductiveautomation.ignition.client.gateway\_interface.GatewayException: Error executing gateway function.  
at com.inductiveautomation.ignition.client.gateway\_interface.GatewayInterface.newGatewayException(GatewayInterface.java:312)  
at com.inductiveautomation.ignition.client.gateway\_interface.GatewayInterface.sendMessage(GatewayInterface.java:286)  
at com.inductiveautomation.ignition.client.gateway\_interface.GatewayInterface.sendMessage(GatewayInterface.java:243)  
at com.inductiveautomation.ignition.client.gateway\_interface.GatewayInterface.invoke(GatewayInterface.java:783)  
at com.inductiveautomation.ignition.client.sqltags.impl.db.DatasourceTagManager.browse(DatasourceTagManager.java:488)  
… 11 more  
Caused by: java.lang.NullPointerException  
at com.inductiveautomation.ignition.gateway.sqltags.providers.AbstractStoreBasedTagProvider.wrapTagsToDef(AbstractStoreBasedTagProvider.java:1187)  
at com.inductiveautomation.ignition.gateway.sqltags.providers.AbstractStoreBasedTagProvider.browse(AbstractStoreBasedTagProvider.java:1142)  
at com.inductiveautomation.ignition.gateway.sqltags.providers.RedundantProviderWrapper.browse(RedundantProviderWrapper.java:123)  
at com.inductiveautomation.ignition.gateway.sqltags.SQLTagsManagerImpl.browse(SQLTagsManagerImpl.java:405)  
at com.inductiveautomation.ignition.gateway.project.ProjectSettingsCache$ProjectDefaultTagManagerFacade.browse(ProjectSettingsCache.java:495)  
at com.inductiveautomation.ignition.gateway.servlets.gateway.functions.SQLTags.browse(SQLTags.java:124)  
at sun.reflect.GeneratedMethodAccessor48.invoke(null)  
at sun.reflect.DelegatingMethodAccessorImpl.invoke(null)  
at java.lang.reflect.Method.invoke(null)  
at com.inductiveautomation.ignition.gateway.servlets.gateway.AbstractGatewayFunction.invoke(AbstractGatewayFunction.java:176)  
at com.inductiveautomation.ignition.gateway.servlets.Gateway.doPost(Gateway.java:398)  
at javax.servlet.http.HttpServlet.service(HttpServlet.java:637)  
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)  
at com.inductiveautomation.ignition.gateway.bootstrap.MapServlet.service(MapServlet.java:85)  
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)  
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)  
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)  
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)  
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)  
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)  
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)  
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:286)  
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:845)  
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)  
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)  
at java.lang.Thread.run(null)  
ERROR [TagProviderNode-SQLTags-TreeLoader-thread-1] Error loading tags underneath  
java.lang.RuntimeException: com.inductiveautomation.ignition.client.gateway\_interface.GatewayException: Error executing gateway function.  
at com.inductiveautomation.ignition.client.sqltags.impl.db.DatasourceTagManager.browse(DatasourceTagManager.java:491)  
at com.inductiveautomation.ignition.client.sqltags.impl.db.DatasourceTagManager.browse(DatasourceTagManager.java:473)  
at com.inductiveautomation.ignition.client.sqltags.impl.ClientTagManagerImpl.browse(ClientTagManagerImpl.java:265)  
at com.inductiveautomation.ignition.designer.sqltags.tree.TagProviderNode.loadTagChildren(TagProviderNode.java:75)  
at com.inductiveautomation.ignition.designer.sqltags.tree.TagProviderNode.loadChildren(TagProviderNode.java:63)  
at com.inductiveautomation.ignition.designer.sqltags.tree.AbstractTagPathTreeNode$Loader.run(AbstractTagPathTreeNode.java:79)  
at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)  
at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source)  
at java.util.concurrent.FutureTask.run(Unknown Source)  
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)  
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)  
at java.lang.Thread.run(Unknown Source)  
Caused by: com.inductiveautomation.ignition.client.gateway\_interface.GatewayException: Error executing gateway function.  
at com.inductiveautomation.ignition.client.gateway\_interface.GatewayInterface.newGatewayException(GatewayInterface.java:312)  
at com.inductiveautomation.ignition.client.gateway\_interface.GatewayInterface.sendMessage(GatewayInterface.java:286)  
at com.inductiveautomation.ignition.client.gateway\_interface.GatewayInterface.sendMessage(GatewayInterface.java:243)  
at com.inductiveautomation.ignition.client.gateway\_interface.GatewayInterface.invoke(GatewayInterface.java:783)  
at com.inductiveautomation.ignition.client.sqltags.impl.db.DatasourceTagManager.browse(DatasourceTagManager.java:488)  
… 11 more  
Caused by: java.lang.NullPointerException  
at com.inductiveautomation.ignition.gateway.sqltags.providers.AbstractStoreBasedTagProvider.wrapTagsToDef(AbstractStoreBasedTagProvider.java:1187)  
at com.inductiveautomation.ignition.gateway.sqltags.providers.AbstractStoreBasedTagProvider.browse(AbstractStoreBasedTagProvider.java:1142)  
at com.inductiveautomation.ignition.gateway.sqltags.providers.RedundantProviderWrapper.browse(RedundantProviderWrapper.java:123)  
at com.inductiveautomation.ignition.gateway.sqltags.SQLTagsManagerImpl.browse(SQLTagsManagerImpl.java:405)  
at com.inductiveautomation.ignition.gateway.project.ProjectSettingsCache$ProjectDefaultTagManagerFacade.browse(ProjectSettingsCache.java:495)  
at com.inductiveautomation.ignition.gateway.servlets.gateway.functions.SQLTags.browse(SQLTags.java:124)  
at sun.reflect.GeneratedMethodAccessor48.invoke(null)  
at sun.reflect.DelegatingMethodAccessorImpl.invoke(null)  
at java.lang.reflect.Method.invoke(null)  
at com.inductiveautomation.ignition.gateway.servlets.gateway.AbstractGatewayFunction.invoke(AbstractGatewayFunction.java:176)  
at com.inductiveautomation.ignition.gateway.servlets.Gateway.doPost(Gateway.java:398)  
at javax.servlet.http.HttpServlet.service(HttpServlet.java:637)  
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)  
at com.inductiveautomation.ignition.gateway.bootstrap.MapServlet.service(MapServlet.java:85)  
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)  
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)  
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)  
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)  
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)  
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)  
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)  
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:286)  
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:845)  
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)  
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)  
at java.lang.Thread.run(null)  
ERROR [TagProviderNode-SQLTags-TreeLoader-thread-1] Error loading tags underneath  
java.lang.RuntimeException: com.inductiveautomation.ignition.client.gateway\_interface.GatewayException: Error executing gateway function.  
at com.inductiveautomation.ignition.client.sqltags.impl.db.DatasourceTagManager.browse(DatasourceTagManager.java:491)  
at com.inductiveautomation.ignition.client.sqltags.impl.db.DatasourceTagManager.browse(DatasourceTagManager.java:473)  
at com.inductiveautomation.ignition.client.sqltags.impl.ClientTagManagerImpl.browse(ClientTagManagerImpl.java:265)  
at com.inductiveautomation.ignition.designer.sqltags.tree.TagProviderNode.loadTagChildren(TagProviderNode.java:75)  
at com.inductiveautomation.ignition.designer.sqltags.tree.TagProviderNode.loadChildren(TagProviderNode.java:63)  
at com.inductiveautomation.ignition.designer.sqltags.tree.AbstractTagPathTreeNode$Loader.run(AbstractTagPathTreeNode.java:79)  
at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)  
at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source)  
at java.util.concurrent.FutureTask.run(Unknown Source)  
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)  
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)  
at java.lang.Thread.run(Unknown Source)  
Caused by: com.inductiveautomation.ignition.client.gateway\_interface.GatewayException: Error executing gateway function.  
at com.inductiveautomation.ignition.client.gateway\_interface.GatewayInterface.newGatewayException(GatewayInterface.java:312)  
at com.inductiveautomation.ignition.client.gateway\_interface.GatewayInterface.sendMessage(GatewayInterface.java:286)  
at com.inductiveautomation.ignition.client.gateway\_interface.GatewayInterface.sendMessage(GatewayInterface.java:243)  
at com.inductiveautomation.ignition.client.gateway\_interface.GatewayInterface.invoke(GatewayInterface.java:783)  
at com.inductiveautomation.ignition.client.sqltags.impl.db.DatasourceTagManager.browse(DatasourceTagManager.java:488)  
… 11 more  
Caused by: java.lang.NullPointerException  
at com.inductiveautomation.ignition.gateway.sqltags.providers.AbstractStoreBasedTagProvider.wrapTagsToDef(AbstractStoreBasedTagProvider.java:1187)  
at com.inductiveautomation.ignition.gateway.sqltags.providers.AbstractStoreBasedTagProvider.browse(AbstractStoreBasedTagProvider.java:1142)  
at com.inductiveautomation.ignition.gateway.sqltags.providers.RedundantProviderWrapper.browse(RedundantProviderWrapper.java:123)  
at com.inductiveautomation.ignition.gateway.sqltags.SQLTagsManagerImpl.browse(SQLTagsManagerImpl.java:405)  
at com.inductiveautomation.ignition.gateway.project.ProjectSettingsCache$ProjectDefaultTagManagerFacade.browse(ProjectSettingsCache.java:495)  
at com.inductiveautomation.ignition.gateway.servlets.gateway.functions.SQLTags.browse(SQLTags.java:124)  
at sun.reflect.GeneratedMethodAccessor48.invoke(null)  
at sun.reflect.DelegatingMethodAccessorImpl.invoke(null)  
at java.lang.reflect.Method.invoke(null)  
at com.inductiveautomation.ignition.gateway.servlets.gateway.AbstractGatewayFunction.invoke(AbstractGatewayFunction.java:176)  
at com.inductiveautomation.ignition.gateway.servlets.Gateway.doPost(Gateway.java:398)  
at javax.servlet.http.HttpServlet.service(HttpServlet.java:637)  
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)  
at com.inductiveautomation.ignition.gateway.bootstrap.MapServlet.service(MapServlet.java:85)  
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)  
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)  
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)  
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)  
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)  
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)  
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)  
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:286)  
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:845)  
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)  
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)  
at java.lang.Thread.run(null)  
ERROR [TagProviderNode-SQLTags-TreeLoader-thread-1] Error loading tags underneath  
java.lang.RuntimeException: com.inductiveautomation.ignition.client.gateway\_interface.GatewayException: Error executing gateway function.  
at com.inductiveautomation.ignition.client.sqltags.impl.db.DatasourceTagManager.browse(DatasourceTagManager.java:491)  
at com.inductiveautomation.ignition.client.sqltags.impl.db.DatasourceTagManager.browse(DatasourceTagManager.java:473)  
at com.inductiveautomation.ignition.client.sqltags.impl.ClientTagManagerImpl.browse(ClientTagManagerImpl.java:265)  
at com.inductiveautomation.ignition.designer.sqltags.tree.TagProviderNode.loadTagChildren(TagProviderNode.java:75)  
at com.inductiveautomation.ignition.designer.sqltags.tree.TagProviderNode.loadChildren(TagProviderNode.java:63)  
at com.inductiveautomation.ignition.designer.sqltags.tree.AbstractTagPathTreeNode$Loader.run(AbstractTagPathTreeNode.java:79)  
at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)  
at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source)  
at java.util.concurrent.FutureTask.run(Unknown Source)  
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)  
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)  
at java.lang.Thread.run(Unknown Source)  
Caused by: com.inductiveautomation.ignition.client.gateway\_interface.GatewayException: Error executing gateway function.  
at com.inductiveautomation.ignition.client.gateway\_interface.GatewayInterface.newGatewayException(GatewayInterface.java:312)  
at com.inductiveautomation.ignition.client.gateway\_interface.GatewayInterface.sendMessage(GatewayInterface.java:286)  
at com.inductiveautomation.ignition.client.gateway\_interface.GatewayInterface.sendMessage(GatewayInterface.java:243)  
at com.inductiveautomation.ignition.client.gateway\_interface.GatewayInterface.invoke(GatewayInterface.java:783)  
at com.inductiveautomation.ignition.client.sqltags.impl.db.DatasourceTagManager.browse(DatasourceTagManager.java:488)  
… 11 more  
Caused by: java.lang.NullPointerException  
at com.inductiveautomation.ignition.gateway.sqltags.providers.AbstractStoreBasedTagProvider.wrapTagsToDef(AbstractStoreBasedTagProvider.java:1187)  
at com.inductiveautomation.ignition.gateway.sqltags.providers.AbstractStoreBasedTagProvider.browse(AbstractStoreBasedTagProvider.java:1142)  
at com.inductiveautomation.ignition.gateway.sqltags.providers.RedundantProviderWrapper.browse(RedundantProviderWrapper.java:123)  
at com.inductiveautomation.ignition.gateway.sqltags.SQLTagsManagerImpl.browse(SQLTagsManagerImpl.java:405)  
at com.inductiveautomation.ignition.gateway.project.ProjectSettingsCache$ProjectDefaultTagManagerFacade.browse(ProjectSettingsCache.java:495)  
at com.inductiveautomation.ignition.gateway.servlets.gateway.functions.SQLTags.browse(SQLTags.java:124)  
at sun.reflect.GeneratedMethodAccessor48.invoke(null)  
at sun.reflect.DelegatingMethodAccessorImpl.invoke(null)  
at java.lang.reflect.Method.invoke(null)  
at com.inductiveautomation.ignition.gateway.servlets.gateway.AbstractGatewayFunction.invoke(AbstractGatewayFunction.java:176)  
at com.inductiveautomation.ignition.gateway.servlets.Gateway.doPost(Gateway.java:398)  
at javax.servlet.http.HttpServlet.service(HttpServlet.java:637)  
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)  
at com.inductiveautomation.ignition.gateway.bootstrap.MapServlet.service(MapServlet.java:85)  
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)  
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)  
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)  
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)  
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)  
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)  
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)  
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:286)  
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:845)  
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)  
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)  
at java.lang.Thread.run(null)  
ERROR [TagProviderNode-SQLTags-TreeLoader-thread-1] Error loading tags underneath [default]  
java.lang.RuntimeException: com.inductiveautomation.ignition.client.gateway\_interface.GatewayException: Error executing gateway function.  
at com.inductiveautomation.ignition.client.sqltags.impl.db.DatasourceTagManager.browse(DatasourceTagManager.java:491)  
at com.inductiveautomation.ignition.client.sqltags.impl.db.DatasourceTagManager.browse(DatasourceTagManager.java:473)  
at com.inductiveautomation.ignition.client.sqltags.impl.ClientTagManagerImpl.browse(ClientTagManagerImpl.java:265)  
at com.inductiveautomation.ignition.designer.sqltags.tree.TagProviderNode.loadTagChildren(TagProviderNode.java:75)  
at com.inductiveautomation.ignition.designer.sqltags.tree.TagProviderNode.loadChildren(TagProviderNode.java:63)  
at com.inductiveautomation.ignition.designer.sqltags.tree.AbstractTagPathTreeNode$Loader.run(AbstractTagPathTreeNode.java:79)  
at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)  
at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source)  
at java.util.concurrent.FutureTask.run(Unknown Source)  
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)  
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)  
at java.lang.Thread.run(Unknown Source)  
Caused by: com.inductiveautomation.ignition.client.gateway\_interface.GatewayException: Error executing gateway function.  
at com.inductiveautomation.ignition.client.gateway\_interface.GatewayInterface.newGatewayException(GatewayInterface.java:312)  
at com.inductiveautomation.ignition.client.gateway\_interface.GatewayInterface.sendMessage(GatewayInterface.java:286)  
at com.inductiveautomation.ignition.client.gateway\_interface.GatewayInterface.sendMessage(GatewayInterface.java:243)  
at com.inductiveautomation.ignition.client.gateway\_interface.GatewayInterface.invoke(GatewayInterface.java:783)  
at com.inductiveautomation.ignition.client.sqltags.impl.db.DatasourceTagManager.browse(DatasourceTagManager.java:488)  
… 11 more  
Caused by: java.lang.NullPointerException  
at com.inductiveautomation.ignition.gateway.sqltags.providers.AbstractStoreBasedTagProvider.wrapTagsToDef(AbstractStoreBasedTagProvider.java:1187)  
at com.inductiveautomation.ignition.gateway.sqltags.providers.AbstractStoreBasedTagProvider.browse(AbstractStoreBasedTagProvider.java:1142)  
at com.inductiveautomation.ignition.gateway.sqltags.providers.RedundantProviderWrapper.browse(RedundantProviderWrapper.java:123)  
at com.inductiveautomation.ignition.gateway.sqltags.SQLTagsManagerImpl.browse(SQLTagsManagerImpl.java:405)  
at com.inductiveautomation.ignition.gateway.project.ProjectSettingsCache$ProjectDefaultTagManagerFacade.browse(ProjectSettingsCache.java:495)  
at com.inductiveautomation.ignition.gateway.servlets.gateway.functions.SQLTags.browse(SQLTags.java:124)  
at sun.reflect.GeneratedMethodAccessor48.invoke(null)  
at sun.reflect.DelegatingMethodAccessorImpl.invoke(null)  
at java.lang.reflect.Method.invoke(null)  
at com.inductiveautomation.ignition.gateway.servlets.gateway.AbstractGatewayFunction.invoke(AbstractGatewayFunction.java:176)  
at com.inductiveautomation.ignition.gateway.servlets.Gateway.doPost(Gateway.java:398)  
at javax.servlet.http.HttpServlet.service(HttpServlet.java:637)  
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)  
at com.inductiveautomation.ignition.gateway.bootstrap.MapServlet.service(MapServlet.java:85)  
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)  
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)  
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)  
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)  
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)  
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)  
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)  
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:286)  
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:845)  
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)  
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)  
at java.lang.Thread.run(null)  
ERROR [TagProviderNode-SQLTags-TreeLoader-thread-1] Error loading tags underneath [default]  
java.lang.RuntimeException: com.inductiveautomation.ignition.client.gateway\_interface.GatewayException: Error executing gateway function.  
at com.inductiveautomation.ignition.client.sqltags.impl.db.DatasourceTagManager.browse(DatasourceTagManager.java:491)  
at com.inductiveautomation.ignition.client.sqltags.impl.db.DatasourceTagManager.browse(DatasourceTagManager.java:473)  
at com.inductiveautomation.ignition.client.sqltags.impl.ClientTagManagerImpl.browse(ClientTagManagerImpl.java:265)  
at com.inductiveautomation.ignition.designer.sqltags.tree.TagProviderNode.loadTagChildren(TagProviderNode.java:75)  
at com.inductiveautomation.ignition.designer.sqltags.tree.TagProviderNode.loadChildren(TagProviderNode.java:63)  
at com.inductiveautomation.ignition.designer.sqltags.tree.AbstractTagPathTreeNode$Loader.run(AbstractTagPathTreeNode.java:79)  
at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)  
at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source)  
at java.util.concurrent.FutureTask.run(Unknown Source)  
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)  
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)  
at java.lang.Thread.run(Unknown Source)  
Caused by: com.inductiveautomation.ignition.client.gateway\_interface.GatewayException: Error executing gateway function.  
at com.inductiveautomation.ignition.client.gateway\_interface.GatewayInterface.newGatewayException(GatewayInterface.java:312)  
at com.inductiveautomation.ignition.client.gateway\_interface.GatewayInterface.sendMessage(GatewayInterface.java:286)  
at com.inductiveautomation.ignition.client.gateway\_interface.GatewayInterface.sendMessage(GatewayInterface.java:243)  
at com.inductiveautomation.ignition.client.gateway\_interface.GatewayInterface.invoke(GatewayInterface.java:783)  
at com.inductiveautomation.ignition.client.sqltags.impl.db.DatasourceTagManager.browse(DatasourceTagManager.java:488)  
… 11 more  
Caused by: java.lang.NullPointerException  
at com.inductiveautomation.ignition.gateway.sqltags.providers.AbstractStoreBasedTagProvider.wrapTagsToDef(AbstractStoreBasedTagProvider.java:1187)  
at com.inductiveautomation.ignition.gateway.sqltags.providers.AbstractStoreBasedTagProvider.browse(AbstractStoreBasedTagProvider.java:1142)  
at com.inductiveautomation.ignition.gateway.sqltags.providers.RedundantProviderWrapper.browse(RedundantProviderWrapper.java:123)  
at com.inductiveautomation.ignition.gateway.sqltags.SQLTagsManagerImpl.browse(SQLTagsManagerImpl.java:405)  
at com.inductiveautomation.ignition.gateway.project.ProjectSettingsCache$ProjectDefaultTagManagerFacade.browse(ProjectSettingsCache.java:495)  
at com.inductiveautomation.ignition.gateway.servlets.gateway.functions.SQLTags.browse(SQLTags.java:124)  
at sun.reflect.GeneratedMethodAccessor48.invoke(null)  
at sun.reflect.DelegatingMethodAccessorImpl.invoke(null)  
at java.lang.reflect.Method.invoke(null)  
at com.inductiveautomation.ignition.gateway.servlets.gateway.AbstractGatewayFunction.invoke(AbstractGatewayFunction.java:176)  
at com.inductiveautomation.ignition.gateway.servlets.Gateway.doPost(Gateway.java:398)  
at javax.servlet.http.HttpServlet.service(HttpServlet.java:637)  
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)  
at com.inductiveautomation.ignition.gateway.bootstrap.MapServlet.service(MapServlet.java:85)  
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)  
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)  
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)  
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)  
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)  
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)  
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)  
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:286)  
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:845)  
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)  
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)  
at java.lang.Thread.run(null)  
ERROR [TagProviderNode-SQLTags-TreeLoader-thread-1] Error loading tags underneath  
java.lang.RuntimeException: com.inductiveautomation.ignition.client.gateway\_interface.GatewayException: Error executing gateway function.  
at com.inductiveautomation.ignition.client.sqltags.impl.db.DatasourceTagManager.browse(DatasourceTagManager.java:491)  
at com.inductiveautomation.ignition.client.sqltags.impl.db.DatasourceTagManager.browse(DatasourceTagManager.java:473)  
at com.inductiveautomation.ignition.client.sqltags.impl.ClientTagManagerImpl.browse(ClientTagManagerImpl.java:265)  
at com.inductiveautomation.ignition.designer.sqltags.tree.TagProviderNode.loadTagChildren(TagProviderNode.java:75)  
at com.inductiveautomation.ignition.designer.sqltags.tree.TagProviderNode.loadChildren(TagProviderNode.java:63)  
at com.inductiveautomation.ignition.designer.sqltags.tree.AbstractTagPathTreeNode$Loader.run(AbstractTagPathTreeNode.java:79)  
at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)  
at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source)  
at java.util.concurrent.FutureTask.run(Unknown Source)  
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)  
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)  
at java.lang.Thread.run(Unknown Source)  
Caused by: com.inductiveautomation.ignition.client.gateway\_interface.GatewayException: Error executing gateway function.  
at com.inductiveautomation.ignition.client.gateway\_interface.GatewayInterface.newGatewayException(GatewayInterface.java:312)  
at com.inductiveautomation.ignition.client.gateway\_interface.GatewayInterface.sendMessage(GatewayInterface.java:286)  
at com.inductiveautomation.ignition.client.gateway\_interface.GatewayInterface.sendMessage(GatewayInterface.java:243)  
at com.inductiveautomation.ignition.client.gateway\_interface.GatewayInterface.invoke(GatewayInterface.java:783)  
at com.inductiveautomation.ignition.client.sqltags.impl.db.DatasourceTagManager.browse(DatasourceTagManager.java:488)  
… 11 more  
Caused by: java.lang.NullPointerException  
at com.inductiveautomation.ignition.gateway.sqltags.providers.AbstractStoreBasedTagProvider.wrapTagsToDef(AbstractStoreBasedTagProvider.java:1187)  
at com.inductiveautomation.ignition.gateway.sqltags.providers.AbstractStoreBasedTagProvider.browse(AbstractStoreBasedTagProvider.java:1142)  
at com.inductiveautomation.ignition.gateway.sqltags.providers.RedundantProviderWrapper.browse(RedundantProviderWrapper.java:123)  
at com.inductiveautomation.ignition.gateway.sqltags.SQLTagsManagerImpl.browse(SQLTagsManagerImpl.java:405)  
at com.inductiveautomation.ignition.gateway.project.ProjectSettingsCache$ProjectDefaultTagManagerFacade.browse(ProjectSettingsCache.java:495)  
at com.inductiveautomation.ignition.gateway.servlets.gateway.functions.SQLTags.browse(SQLTags.java:124)  
at sun.reflect.GeneratedMethodAccessor48.invoke(null)  
at sun.reflect.DelegatingMethodAccessorImpl.invoke(null)  
at java.lang.reflect.Method.invoke(null)  
at com.inductiveautomation.ignition.gateway.servlets.gateway.AbstractGatewayFunction.invoke(AbstractGatewayFunction.java:176)  
at com.inductiveautomation.ignition.gateway.servlets.Gateway.doPost(Gateway.java:398)  
at javax.servlet.http.HttpServlet.service(HttpServlet.java:637)  
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)  
at com.inductiveautomation.ignition.gateway.bootstrap.MapServlet.service(MapServlet.java:85)  
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)  
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)  
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)  
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)  
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128)  
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)  
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)  
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:286)  
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:845)  
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:583)  
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)  
at java.lang.Thread.run(null)

---

<div class="post-metadata">

**Author:** ![greg.simpson](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/greg.simpson/32/3135_2.png) [@greg.simpson](https://forum.inductiveautomation.com/u/greg.simpson)\
**Post date:** [June 25, 2012, 6:17pm UTC](https://forum.inductiveautomation.com/t/tag-errors/4701/4 "2012-06-25T18:17:28Z")

</div>

Have you tried to replace those tags to see if that resolves the problem?

---

<div class="post-metadata">

**Author:** ![AJBerera](https://avatars.discourse-cdn.com/v4/letter/a/9fc29f/32.png) [@AJBerera](https://forum.inductiveautomation.com/u/AJBerera)\
**Post date:** [June 25, 2012, 6:19pm UTC](https://forum.inductiveautomation.com/t/tag-errors/4701/5 "2012-06-25T18:19:10Z")

</div>

One of the tags I was attempting to make was a motor description tag which had a string value that was an entire line long. After binding this to a custom property of a window, tag browsing failed, so I tried to delete the tags to fix the problem, I think I made things worse.

Replacing the tags did not help.

---

<div class="post-metadata">

**Author:** ![Colby.Clegg](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/colby.clegg/32/3282_2.png) [@Colby.Clegg](https://forum.inductiveautomation.com/u/Colby.Clegg)\
**Post date:** [June 25, 2012, 6:36pm UTC](https://forum.inductiveautomation.com/t/tag-errors/4701/6 "2012-06-25T18:36:11Z")

</div>

Hi,

If you [upload](http://inductiveautomation.com/uploads) the backup to ticket number 7451, I should be able to quickly identify what’s causing the problem, and should be able to send you a few queries to run against the internal db to get it sorted out. It will also help us track down and fix our side of the problem.

Thanks,

---

<div class="post-metadata">

**Author:** ![AJBerera](https://avatars.discourse-cdn.com/v4/letter/a/9fc29f/32.png) [@AJBerera](https://forum.inductiveautomation.com/u/AJBerera)\
**Post date:** [June 25, 2012, 7:35pm UTC](https://forum.inductiveautomation.com/t/tag-errors/4701/7 "2012-06-25T19:35:06Z")

</div>

[quote=“Colby.Clegg”]Hi,

If you [upload](http://inductiveautomation.com/uploads) the backup to ticket number 7451, I should be able to quickly identify what’s causing the problem, and should be able to send you a few queries to run against the internal db to get it sorted out. It will also help us track down and fix our side of the problem.

Thanks,[/quote]

I restarted my server, this fixed my tag browser…  
Sorry to take up your time with that one.

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<div class="post-metadata">

**Author:** ![Colby.Clegg](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/colby.clegg/32/3282_2.png) [@Colby.Clegg](https://forum.inductiveautomation.com/u/Colby.Clegg)\
**Post date:** [June 25, 2012, 7:53pm UTC](https://forum.inductiveautomation.com/t/tag-errors/4701/8 "2012-06-25T19:53:30Z")

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Hi,

Yeah, I didn’t get an error immediately after loading the backup, so I figured it was an in-memory thing. However, I did manage to replicate it, so hopefully we can get some sort of fix in today.

When you’ve tried to delete elements from UDTs, are you deleting from the type, or the instance? It was brought to my attention last week that it’s currently possible to delete from under instances - which shouldn’t be possible. Doing this causes the problem you’ve reported. If that’s not what you were doing, let me know, otherwise just take care to delete from the data type, and not the instance.

Regards,

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**Author:** ![AJBerera](https://avatars.discourse-cdn.com/v4/letter/a/9fc29f/32.png) [@AJBerera](https://forum.inductiveautomation.com/u/AJBerera)\
**Post date:** [June 25, 2012, 8:05pm UTC](https://forum.inductiveautomation.com/t/tag-errors/4701/9 "2012-06-25T20:05:06Z")

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oh, yes. I was deleting from instancing too… that was probably it.  
Thanks, I’ll remember not to do that any more