java.lang.NullPointerException: This exception has no message.

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This exception has no message.
java.lang.NullPointerException:
at jetbrains.mps.ide.devkit.actions.TraceTool_Tool.init(TraceTool_Tool.java:35)
at jetbrains.mps.plugins.projectplugins.BaseProjectPlugin.registerPrefsAndTools(BaseProjectPlugin.java:134)
at jetbrains.mps.plugins.projectplugins.BaseProjectPlugin.init(BaseProjectPlugin.java:92)
at jetbrains.mps.plugins.projectplugins.ProjectPluginManager.createPlugin(ProjectPluginManager.java:170)
at jetbrains.mps.plugins.projectplugins.ProjectPluginManager.createPlugin(ProjectPluginManager.java:59)
at jetbrains.mps.plugins.BasePluginManager.createPluginChecked(BasePluginManager.java:139)
at jetbrains.mps.plugins.BasePluginManager.createPlugins(BasePluginManager.java:129)
at jetbrains.mps.plugins.BasePluginManager.loadPlugins(BasePluginManager.java:76)
at jetbrains.mps.plugins.projectplugins.ProjectPluginManager.loadPlugins(ProjectPluginManager.java:177)
at jetbrains.mps.plugins.PluginLoaderRegistry.loadContributors(PluginLoaderRegistry.java:146)
at jetbrains.mps.plugins.PluginLoaderRegistry.access$700(PluginLoaderRegistry.java:70)
at jetbrains.mps.plugins.PluginLoaderRegistry$UpdatingTask.addLoaders(PluginLoaderRegistry.java:350)
at jetbrains.mps.plugins.PluginLoaderRegistry$UpdatingTask.doUpdate(PluginLoaderRegistry.java:322)
at com.intellij.openapi.application.TransactionGuardImpl$6.run(TransactionGuardImpl.java:291)
at com.intellij.openapi.application.impl.LaterInvocator$1.run(LaterInvocator.java:156)
at com.intellij.openapi.application.impl.LaterInvocator$FlushQueue.runNextEvent(LaterInvocator.java:326)
at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:311)
at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:756)
at java.awt.EventQueue.access$500(EventQueue.java:97)
at java.awt.EventQueue$3.run(EventQueue.java:709)
at java.awt.EventQueue$3.run(EventQueue.java:703)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:76)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:726)
at com.intellij.ide.IdeEventQueue.defaultDispatchEvent(IdeEventQueue.java:863)
at com.intellij.ide.IdeEventQueue._dispatchEvent(IdeEventQueue.java:699)
at com.intellij.ide.IdeEventQueue.dispatchEvent(IdeEventQueue.java:385)
at com.intellij.ide.IdeEventQueue.pumpEventsForHierarchy(IdeEventQueue.java:950)
at com.intellij.openapi.progress.util.ProgressWindow.startBlocking(ProgressWindow.java:207)
at com.intellij.openapi.progress.util.ProgressWindow.startBlocking(ProgressWindow.java:194)
at com.intellij.openapi.application.impl.ApplicationImpl.runProcessWithProgressSynchronously(ApplicationImpl.java:569)
at com.intellij.openapi.progress.impl.CoreProgressManager.runProcessWithProgressSynchronously(CoreProgressManager.java:396)
at com.intellij.openapi.progress.impl.ProgressManagerImpl.runProcessWithProgressSynchronously(ProgressManagerImpl.java:76)
at jetbrains.mps.plugins.PluginLoaderRegistry.runTask(PluginLoaderRegistry.java:180)
at jetbrains.mps.plugins.PluginLoaderRegistry.update(PluginLoaderRegistry.java:268)
at com.intellij.openapi.application.TransactionGuardImpl$6.run(TransactionGuardImpl.java:291)
at com.intellij.openapi.application.impl.LaterInvocator$FlushQueue.runNextEvent(LaterInvocator.java:326)
at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:311)
at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:756)
at java.awt.EventQueue.access$500(EventQueue.java:97)
at java.awt.EventQueue$3.run(EventQueue.java:709)
at java.awt.EventQueue$3.run(EventQueue.java:703)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:76)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:726)
at com.intellij.ide.IdeEventQueue.defaultDispatchEvent(IdeEventQueue.java:863)
at com.intellij.ide.IdeEventQueue._dispatchEvent(IdeEventQueue.java:699)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:201)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:116)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:105)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93)
at java.awt.EventDispatchThread.run(EventDispatchThread.java:82)

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