# IgnitionProjectManager - Error notifying listener about project update **URL:** \ **Category:** Ignition\ **Tags:** ignition80\ **Created:** [July 9, 2019, 6:54pm UTC](https://forum.inductiveautomation.com/t/ignitionprojectmanager-error-notifying-listener-about-project-update/26402 "2019-07-09T18:54:28Z")\ **Posts on this page:** 11\ **Page:** 1
**Author:** ![karthikeyyans](https://avatars.discourse-cdn.com/v4/letter/k/d78d45/32.png) [@karthikeyyans](https://forum.inductiveautomation.com/u/karthikeyyans)\ **Post date:** [July 9, 2019, 6:54pm UTC](https://forum.inductiveautomation.com/t/ignitionprojectmanager-error-notifying-listener-about-project-update/26402/1 "2019-07-09T18:54:28Z")
I am not sure what this error is all about. But my Gateway script is not running at the background. Any Insights? I found this in Status-\>Diagnostics-\>Logs ```auto java.lang.IndexOutOfBoundsException: Index 0 out of bounds for length 0 at java.base/jdk.internal.util.Preconditions.outOfBounds(Unknown Source) at java.base/jdk.internal.util.Preconditions.outOfBoundsCheckIndex(Unknown Source) at java.base/jdk.internal.util.Preconditions.checkIndex(Unknown Source) at java.base/java.util.Objects.checkIndex(Unknown Source) at java.base/java.util.ArrayList.get(Unknown Source) at com.inductiveautomation.ignition.gateway.tags.model.ProjectDefaultTagManagerFacade.unsubscribeAsync(ProjectDefaultTagManagerFacade.java:197) at com.inductiveautomation.ignition.common.script.TagChangeScriptExecutor.unsubscribe(TagChangeScriptExecutor.java:92) at com.inductiveautomation.ignition.common.script.TagChangeScriptManager.shutdown(TagChangeScriptManager.java:62) at com.inductiveautomation.ignition.common.script.ScriptConfig.shutdown(ScriptConfig.java:137) at com.inductiveautomation.ignition.gateway.project.ProjectScriptLifecycle.shutdownScriptConfig(ProjectScriptLifecycle.java:293) at com.inductiveautomation.ignition.gateway.project.ProjectScriptLifecycle.restartScriptConfig(ProjectScriptLifecycle.java:175) at com.inductiveautomation.ignition.gateway.project.ProjectScriptLifecycle.onResourcesModified(ProjectScriptLifecycle.java:489) at com.inductiveautomation.ignition.gateway.project.ProjectLifecycle$LifecycleResourceListener.resourcesModified(ProjectLifecycle.java:176) at com.inductiveautomation.ignition.common.project.AbstractProject.notifyResourceListeners(AbstractProject.java:349) at com.inductiveautomation.ignition.common.project.AbstractProject.updateEffectiveState(AbstractProject.java:151) at com.inductiveautomation.ignition.common.project.RuntimeProject.applyChange(RuntimeProject.java:271) at com.inductiveautomation.ignition.gateway.project.ProjectLifecycleFactory$1.lambda$updateOrStartAffectedProjects$5(ProjectLifecycleFactory.java:181) at java.base/java.util.ArrayList.forEach(Unknown Source) at com.inductiveautomation.ignition.gateway.project.ProjectLifecycleFactory$1.updateOrStartAffectedProjects(ProjectLifecycleFactory.java:161) at com.inductiveautomation.ignition.gateway.project.ProjectLifecycleFactory$1.projectUpdated(ProjectLifecycleFactory.java:139) at com.inductiveautomation.ignition.gateway.project.BaseProjectManager.fireProjectUpdated(BaseProjectManager.java:811) at java.base/java.lang.Iterable.forEach(Unknown Source) at com.inductiveautomation.ignition.gateway.project.BaseProjectManager.push(BaseProjectManager.java:516) at com.inductiveautomation.ignition.gateway.servlets.gateway.functions.Projects.push(Projects.java:218) at jdk.internal.reflect.GeneratedMethodAccessor90.invoke(Unknown Source) at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.base/java.lang.reflect.Method.invoke(Unknown Source) at com.inductiveautomation.ignition.gateway.servlets.gateway.AbstractGatewayFunction.invoke(AbstractGatewayFunction.java:225) at com.inductiveautomation.ignition.gateway.servlets.Gateway.doPost(Gateway.java:409) 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:86) at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:852) at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:535) 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.handler.HandlerWrapper.handle(HandlerWrapper.java:132) at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:190) at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:1595) at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:188) at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1253) at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:168) at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:473) at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1564) at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:166) at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1155) at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141) at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132) at org.eclipse.jetty.rewrite.handler.RewriteHandler.handle(RewriteHandler.java:335) at org.eclipse.jetty.server.handler.HandlerList.handle(HandlerList.java:61) at org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:126) at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132) at org.eclipse.jetty.server.Server.handle(Server.java:530) at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:347) at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:256) at org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:279) at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:102) at org.eclipse.jetty.io.ChannelEndPoint$2.run(ChannelEndPoint.java:124) at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.doProduce(EatWhatYouKill.java:247) at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.produce(EatWhatYouKill.java:140) at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.run(EatWhatYouKill.java:131) at org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:382) at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:708) at org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:626) at java.base/java.lang.Thread.run(Unknown Source) ``` ---
**Author:** ![Kevin.Herron](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/kevin.herron/32/7259_2.png) [@Kevin.Herron](https://forum.inductiveautomation.com/u/Kevin.Herron)\ **Post date:** [July 9, 2019, 7:02pm UTC](https://forum.inductiveautomation.com/t/ignitionprojectmanager-error-notifying-listener-about-project-update/26402/2 "2019-07-09T19:02:05Z")
Do you have a warning message in your gateway logs somewhere like this? ```auto Error compiling tag change script: ``` ---
**Author:** ![karthikeyyans](https://avatars.discourse-cdn.com/v4/letter/k/d78d45/32.png) [@karthikeyyans](https://forum.inductiveautomation.com/u/karthikeyyans)\ **Post date:** [July 9, 2019, 7:26pm UTC](https://forum.inductiveautomation.com/t/ignitionprojectmanager-error-notifying-listener-about-project-update/26402/3 "2019-07-09T19:26:03Z")
@Kevin.Herron - Thanks for your response. I was not able to find any warning message in logs. I tried closing and re-opening a session, but still, I get this error. I even disabled my gateway script but the error persists. ![Capture](https://us1.discourse-cdn.com/inductiveautomation/original/2X/b/beb20d7bfe80d3f71d30227208ea0683a3b37743.jpeg) ---
**Author:** ![Kevin.Herron](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/kevin.herron/32/7259_2.png) [@Kevin.Herron](https://forum.inductiveautomation.com/u/Kevin.Herron)\ **Post date:** [July 9, 2019, 7:34pm UTC](https://forum.inductiveautomation.com/t/ignitionprojectmanager-error-notifying-listener-about-project-update/26402/4 "2019-07-09T19:34:33Z")
As far as I can tell this problem is stemming from a gateway tag change script that won’t compile… You might need to get in touch with support and have a gateway backup they can look at. ---
**Author:** ![karthikeyyans](https://avatars.discourse-cdn.com/v4/letter/k/d78d45/32.png) [@karthikeyyans](https://forum.inductiveautomation.com/u/karthikeyyans)\ **Post date:** [July 10, 2019, 12:39pm UTC](https://forum.inductiveautomation.com/t/ignitionprojectmanager-error-notifying-listener-about-project-update/26402/5 "2019-07-10T12:39:17Z")
Thanks I will see what can be done! ---
**Author:** ![rbachman](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/rbachman/32/43718_2.png) [@rbachman](https://forum.inductiveautomation.com/u/rbachman)\ **Post date:** [February 25, 2020, 8:27pm UTC](https://forum.inductiveautomation.com/t/ignitionprojectmanager-error-notifying-listener-about-project-update/26402/6 "2020-02-25T20:27:49Z")
@karthikeyyans Did you ever get an answer on this? I am having the same issue. EDIT: I was able to resolve this by restarting the gateway. I’m still not sure what the initial cause was. ---
**Author:** ![karthikeyyans](https://avatars.discourse-cdn.com/v4/letter/k/d78d45/32.png) [@karthikeyyans](https://forum.inductiveautomation.com/u/karthikeyyans)\ **Post date:** [February 25, 2020, 9:32pm UTC](https://forum.inductiveautomation.com/t/ignitionprojectmanager-error-notifying-listener-about-project-update/26402/7 "2020-02-25T21:32:15Z")
@rbachman - Yes, We restarted the gateway and it never appeared again! If it happens again, better contact Inductive Automation support by sending gateway backup. ---
**Author:** ![rbachman](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/rbachman/32/43718_2.png) [@rbachman](https://forum.inductiveautomation.com/u/rbachman)\ **Post date:** [October 28, 2020, 1:33pm UTC](https://forum.inductiveautomation.com/t/ignitionprojectmanager-error-notifying-listener-about-project-update/26402/8 "2020-10-28T13:33:54Z")
We just had this same issue again today. A restart of the server fixed it. ---
**Author:** ![splata](https://avatars.discourse-cdn.com/v4/letter/s/3bc359/32.png) [@splata](https://forum.inductiveautomation.com/u/splata)\ **Post date:** [January 18, 2023, 2:26pm UTC](https://forum.inductiveautomation.com/t/ignitionprojectmanager-error-notifying-listener-about-project-update/26402/9 "2023-01-18T14:26:43Z")
Hello any answer of IA? I´ve the same issue and i´ve the V8.1.23 ---
**Author:** ![paul-griffith](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/paul-griffith/32/37249_2.png) [@paul-griffith](https://forum.inductiveautomation.com/u/paul-griffith)\ **Post date:** [January 18, 2023, 4:42pm UTC](https://forum.inductiveautomation.com/t/ignitionprojectmanager-error-notifying-listener-about-project-update/26402/10 "2023-01-18T16:42:29Z")
This forum isn't an official support venue. If you need an official response, contact [Support](https://support.inductiveautomation.com). ---
**Author:** ![sherman](https://avatars.discourse-cdn.com/v4/letter/s/e5b9ba/32.png) [@sherman](https://forum.inductiveautomation.com/u/sherman)\ **Post date:** [June 2, 2025, 11:56pm UTC](https://forum.inductiveautomation.com/t/ignitionprojectmanager-error-notifying-listener-about-project-update/26402/11 "2025-06-02T23:56:31Z")
Confirming that this is still an issue that can be encountered in 8.1.41