org.eclipse.core.internal.dtree.ObjectNotFoundException: Tree element

hello ,
I get this error message when launching Katalon studio.
I initially get this message when launching katalon suite within a jenkins job.
I suspect this problem occurred after launching several katalon commandline at the same time (these katalon are different jobs in jenkins and thus have different workspaces).

What should I do to get rid of this error ?

here is an extract of my jenkins Job :

D:\tmp>D:\Integration\Katalon\katalon.exe -runMode=console -reportFolder=“D:\Integration\Jenkins\workspace\ReflexReactiviteENT\ReflexFmTests\Reports” -projectPath=“D:\Integration\Jenkins\workspace\ReflexReactiviteENT\ReflexFmTests\ReflexFmTests.prj” -retry=0 -testSuitePath=“Test Suites/PROD/sReactiviteENT” -executionProfile=“default” -browserType=“Chrome” --config -proxy.option=“NO_PROXY”
Katalon workspace folder is set to default location: D:\Integration\Katalon\config
Starting Groovy-Eclipse compiler resolver. Specified compiler level: unspecified
170 2.4.7.xx-201611170128-e46 = ACTIVE

INFO: Katalon Version: 6.2.1
INFO: Command-line arguments: -runMode=console -reportFolder=D:\Integration\Jenkins\workspace\ReflexReactiviteENT\ReflexFmTests\Reports -projectPath=D:\Integration\Jenkins\workspace\ReflexReactiviteENT\ReflexFmTests\ReflexFmTests.prj -retry=0 -testSuitePath=Test Suites/PROD/sReactiviteENT -executionProfile=default -browserType=Chrome --config -proxy.option=NO_PROXY
INFO: User working dir: D:\tmp
INFO: User home: C:\Windows\system32\config\systemprofile
INFO: Java vendor: Oracle Corporation
INFO: Java version: 1.8.0_181
INFO: Local OS: Windows Server 2016 64bit
INFO: CPU load: 59%
INFO: Total memory: 8191 MB
INFO: Free memory: 4522 MB

Delete folder: bin
Delete folder: Libs
Opening project file: D:\Integration\Jenkins\workspace\ReflexReactiviteENT\ReflexFmTests\ReflexFmTests.prj
Parsing custom keywords in Plugins folder…
org.eclipse.core.internal.dtree.ObjectNotFoundException: Tree element ‘/D%%Integration%Jenkins%workspace%ReflexReactiviteCPE%ReflexFmTests%ReflexFmTests.prj/Reports/junit_report.xml’ not found.
at org.eclipse.core.internal.dtree.AbstractDataTree.handleNotFound(AbstractDataTree.java:257)
at org.eclipse.core.internal.dtree.DeltaDataTree.copyCompleteSubtree(DeltaDataTree.java:310)
at org.eclipse.core.internal.dtree.DeltaDataTree.naiveCopyCompleteSubtree(DeltaDataTree.java:774)
at org.eclipse.core.internal.dtree.DeltaDataTree.copyCompleteSubtree(DeltaDataTree.java:314)
at org.eclipse.core.internal.dtree.DataTreeNode.asBackwardDelta(DataTreeNode.java:54)
at org.eclipse.core.internal.dtree.NoDataDeltaNode.asBackwardDelta(NoDataDeltaNode.java:60)
at org.eclipse.core.internal.dtree.DataDeltaNode.asBackwardDelta(DataDeltaNode.java:48)
at org.eclipse.core.internal.dtree.DeltaDataTree.asBackwardDelta(DeltaDataTree.java:88)
at org.eclipse.core.internal.dtree.DeltaDataTree.reroot(DeltaDataTree.java:832)
at org.eclipse.core.internal.dtree.DeltaDataTree.reroot(DeltaDataTree.java:831)
at org.eclipse.core.internal.dtree.DeltaDataTree.reroot(DeltaDataTree.java:831)
at org.eclipse.core.internal.dtree.DeltaDataTree.reroot(DeltaDataTree.java:808)
at org.eclipse.core.internal.watson.ElementTree.immutable(ElementTree.java:519)
at org.eclipse.core.internal.events.ResourceDeltaFactory.computeDelta(ResourceDeltaFactory.java:43)
at org.eclipse.core.internal.events.NotificationManager.getDelta(NotificationManager.java:234)
at org.eclipse.core.internal.events.NotificationManager.broadcastChanges(NotificationManager.java:143)
at org.eclipse.core.internal.resources.Workspace.broadcastPostChange(Workspace.java:374)
at org.eclipse.core.internal.resources.Workspace.endOperation(Workspace.java:1469)
at org.eclipse.core.internal.resources.Project.setDescription(Project.java:1270)
at org.eclipse.core.internal.resources.Project.setDescription(Project.java:1280)
at com.kms.katalon.groovy.util.GroovyUtil.initGroovyProjectDescription(GroovyUtil.java:588)
at com.kms.katalon.groovy.util.GroovyUtil.initGroovyProject(GroovyUtil.java:153)
at com.kms.katalon.controller.ProjectController.openProject(ProjectController.java:146)
at com.kms.katalon.execution.console.ConsoleMain.getProject(ConsoleMain.java:330)
at com.kms.katalon.execution.console.ConsoleMain.findProject(ConsoleMain.java:225)
at com.kms.katalon.execution.console.ConsoleMain.launch(ConsoleMain.java:128)
at com.kms.katalon.console.application.Application.runConsole(Application.java:76)
at com.kms.katalon.core.application.Application.runConsole(Application.java:87)
at com.kms.katalon.core.application.Application.start(Application.java:70)
at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:134)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:104)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:388)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:243)
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:498)
at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:673)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:610)
at org.eclipse.equinox.launcher.Main.run(Main.java:1519)

I found a way to get rid of this error by applying a trick found in this post ! : Cannot open Katalon after latest update

I only had to delete folder D:\Integration\Katalon\config.metadata.plugins\org.eclipse.core.resources
Katalon studio and jenkins jobs are wotking fine now :slight_smile:

Is it forbidden to launch several Katalon jobs at the same time via Jenkins ?

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