# Issue creating new UDT tag

**URL:** <https://forum.inductiveautomation.com/t/issue-creating-new-udt-tag/14329>\
**Category:** Ignition\
**Created:** [May 17, 2017, 4:54pm UTC](https://forum.inductiveautomation.com/t/issue-creating-new-udt-tag/14329 "2017-05-17T16:54:49Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![jose.granero](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/jose.granero/32/11190_2.png) [@jose.granero](https://forum.inductiveautomation.com/u/jose.granero)\
**Post date:** [May 17, 2017, 4:54pm UTC](https://forum.inductiveautomation.com/t/issue-creating-new-udt-tag/14329/1 "2017-05-17T16:54:49Z")

</div>

When I try to create a new UDT tag using this code on version 7.7.8:

datosid=‘20ffab’  
system.tag.addTag(parentPath=’’, name=datosid, tagType=“UDT\_INST”, attributes={“UDTParentType”:“sensit”}, parameters={“device”:datosid})

I get the following error message:

com.inductiveautomation.ignition.client.gateway\_interface.GatewayException: com.inductiveautomation.ignition.client.gateway\_interface.GatewayException: null

```
            at org.python.core.Py.JavaError(Py.java:495)
            at org.python.core.Py.JavaError(Py.java:488)
            at org.python.core.PyReflectedFunction. __call__ (PyReflectedFunction.java:188)
            at com.inductiveautomation.ignition.common.script.ScriptManager$ReflectedInstanceFunction. __call__ (ScriptManager.java:428)
            at org.python.core.PyObject. __call__ (PyObject.java:320)
            at org.python.pycode._pyx414.f$0(<script playground>:3)
            at org.python.pycode._pyx414.call_function(<script playground>)
            at org.python.core.PyTableCode.call(PyTableCode.java:165)
            at org.python.core.PyCode.call(PyCode.java:18)
            at org.python.core.Py.runCode(Py.java:1275)
            at com.inductiveautomation.ignition.common.script.ScriptManager.runCode(ScriptManager.java:624)
            at com.inductiveautomation.ignition.common.script.ScriptManager.runCode(ScriptManager.java:606)
            at com.inductiveautomation.ignition.designer.gui.tools.ScriptPlayground.runScript(ScriptPlayground.java:235)
            at com.inductiveautomation.ignition.designer.gui.tools.ScriptPlayground$2.actionPerformed(ScriptPlayground.java:254)
            at javax.swing.AbstractButton.fireActionPerformed(Unknown Source)
            at javax.swing.AbstractButton$Handler.actionPerformed(Unknown Source)
            at javax.swing.DefaultButtonModel.fireActionPerformed(Unknown Source)
            at javax.swing.DefaultButtonModel.setPressed(Unknown Source)
            at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(Unknown Source)
            at java.awt.AWTEventMulticaster.mouseReleased(Unknown Source)
            at java.awt.Component.processMouseEvent(Unknown Source)
            at javax.swing.JComponent.processMouseEvent(Unknown Source)
            at java.awt.Component.processEvent(Unknown Source)
            at java.awt.Container.processEvent(Unknown Source)
            at java.awt.Component.dispatchEventImpl(Unknown Source)
            at java.awt.Container.dispatchEventImpl(Unknown Source)
            at java.awt.Component.dispatchEvent(Unknown Source)
            at java.awt.LightweightDispatcher.retargetMouseEvent(Unknown Source)
            at java.awt.LightweightDispatcher.processMouseEvent(Unknown Source)
            at java.awt.LightweightDispatcher.dispatchEvent(Unknown Source)
            at java.awt.Container.dispatchEventImpl(Unknown Source)
            at java.awt.Window.dispatchEventImpl(Unknown Source)
            at java.awt.Component.dispatchEvent(Unknown Source)
            at java.awt.EventQueue.dispatchEventImpl(Unknown Source)
            at java.awt.EventQueue.access$500(Unknown Source)
            at java.awt.EventQueue$3.run(Unknown Source)
            at java.awt.EventQueue$3.run(Unknown Source)
            at java.security.AccessController.doPrivileged(Native Method)
            at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(Unknown Source)
            at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(Unknown Source)
            at java.awt.EventQueue$4.run(Unknown Source)
            at java.awt.EventQueue$4.run(Unknown Source)
            at java.security.AccessController.doPrivileged(Native Method)
            at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(Unknown Source)
            at java.awt.EventQueue.dispatchEvent(Unknown Source)
            at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
            at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
            at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
            at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
            at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
            at java.awt.EventDispatchThread.run(Unknown Source)

```

Caused by: com.inductiveautomation.ignition.client.gateway\_interface.GatewayException: null  
at com.inductiveautomation.ignition.client.gateway\_interface.GatewayInterface.newGatewayException(GatewayInterface.java:327)  
at com.inductiveautomation.ignition.client.gateway\_interface.GatewayInterface.sendMessage(GatewayInterface.java:301)  
at com.inductiveautomation.ignition.client.gateway\_interface.GatewayInterface.sendMessage(GatewayInterface.java:258)  
at com.inductiveautomation.ignition.client.gateway\_interface.GatewayInterface.moduleInvokeSafe(GatewayInterface.java:775)  
at com.ialabs.scripting.functions.TagFunctionsImpl.addTag(TagFunctionsImpl.java:44)  
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)  
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)  
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)  
at java.lang.reflect.Method.invoke(Unknown Source)  
at org.python.core.PyReflectedFunction. **call** (PyReflectedFunction.java:186)  
… 48 more  
Caused by: java.lang.NullPointerException  
at com.ialabs.scripting.functions.TagFunctionsImpl.handleComplexTag(TagFunctionsImpl.java:509)  
at com.ialabs.scripting.functions.TagFunctionsImpl.\_addTag(TagFunctionsImpl.java:336)  
at com.ialabs.scripting.functions.TagFunctionsImpl.addTag(TagFunctionsImpl.java:305)  
at com.ialabs.scripting.RPCHandler.addTag(RPCHandler.java:72)  
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)  
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)  
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)  
at java.lang.reflect.Method.invoke(Method.java:483)  
at com.inductiveautomation.ignition.gateway.servlets.gateway.functions.ModuleInvoke.invoke(ModuleInvoke.java:123)  
at com.inductiveautomation.ignition.gateway.servlets.Gateway.doPost(Gateway.java:343)  
at javax.servlet.http.HttpServlet.service(HttpServlet.java:707)  
at javax.servlet.http.HttpServlet.service(HttpServlet.java:790)  
at com.inductiveautomation.ignition.gateway.bootstrap.MapServlet.service(MapServlet.java:85)  
at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:816)  
at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:583)  
at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143)  
at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:548)  
at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:226)  
at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1156)  
at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:511)  
at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:185)  
at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1088)  
at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141)  
at org.eclipse.jetty.server.handler.HandlerList.handle(HandlerList.java:52)  
at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:119)  
at org.eclipse.jetty.server.Server.handle(Server.java:517)  
at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:306)  
at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:242)  
at org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:245)  
at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:95)  
at org.eclipse.jetty.io.SelectChannelEndPoint$2.run(SelectChannelEndPoint.java:75)  
at org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.produceAndRun(ExecuteProduceConsume.java:213)  
at org.eclipse.jetty.util.thread.strategy.ExecuteProduceConsume.run(ExecuteProduceConsume.java:147)  
at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:654)  
at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:572)  
at java.lang.Thread.run(Thread.java:745)

Ignition v7.7.8 (b2016040703)

Java: Oracle Corporation 1.8.0\_131

[tags.xml](https://us1.discourse-cdn.com/inductiveautomation/original/2X/c/ceebc0decd06ad9bec66f269f004b718f726e588.xml) (2.0 KB)