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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$UpdatingTask.doUpdate(PluginLoaderRegistry.java:322)	at jetbrains.mps.plugins.PluginLoaderRegistry$UpdatingTask.lambda$run$10(PluginLoaderRegistry.java:310)	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 com.intellij.openapi.application.impl.LaterInvocator$FlushQueue.run(LaterInvocator.java:310)	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 com.intellij.openapi.progress.impl.CoreProgressManager.run(CoreProgressManager.java:312)	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 com.intellij.openapi.application.impl.LaterInvocator$FlushQueue.run(LaterInvocator.java:310)	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 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)