If I try to open an existing feature file, I get an Editor could not be initialized error with the following stack trace: org.eclipse.xtext.parser.ParseException: java.lang.NoSuchMethodError: org.eclipse.xtend.core.services.XtendGrammarAccess$FeatureCallIDElements.getIDTerminalRuleCall_0()Lorg/eclipse/xtext/RuleCall; at org.eclipse.xtext.parser.antlr.AbstractAntlrParser.doParse(AbstractAntlrParser.java:105) at org.eclipse.xtext.parser.antlr.AbstractAntlrParser.parse(AbstractAntlrParser.java:84) at org.eclipse.xtext.parser.antlr.AbstractAntlrParser.doParse(AbstractAntlrParser.java:62) at org.eclipse.xtext.parser.AbstractParser.parse(AbstractParser.java:32) at org.eclipse.xtext.resource.XtextResource.doLoad(XtextResource.java:164) at org.eclipse.xtext.linking.lazy.LazyLinkingResource.doLoad(LazyLinkingResource.java:81) at org.eclipse.emf.ecore.resource.impl.ResourceImpl.load(ResourceImpl.java:1518) at org.eclipse.xtext.ui.editor.model.XtextDocumentProvider.loadResource(XtextDocumentProvider.java:228) at org.eclipse.xtext.ui.editor.model.XtextDocumentProvider.setDocumentResource(XtextDocumentProvider.java:208) at org.eclipse.xtext.ui.editor.model.XtextDocumentProvider.setDocumentContent(XtextDocumentProvider.java:198) at org.eclipse.xtext.xbase.ui.editor.XbaseDocumentProvider.setDocumentContent(XbaseDocumentProvider.java:76) at org.eclipse.ui.editors.text.StorageDocumentProvider.createDocument(StorageDocumentProvider.java:229) at org.eclipse.xtext.ui.editor.model.XtextDocumentProvider.createDocument(XtextDocumentProvider.java:140) at org.eclipse.ui.editors.text.FileDocumentProvider.createElementInfo(FileDocumentProvider.java:737) at org.eclipse.xtext.ui.editor.model.XtextDocumentProvider.createElementInfo(XtextDocumentProvider.java:252) at org.eclipse.xtext.xbase.ui.editor.XbaseDocumentProvider.createElementInfo(XbaseDocumentProvider.java:95) at org.eclipse.ui.texteditor.AbstractDocumentProvider.connect(AbstractDocumentProvider.java:400) at org.eclipse.ui.texteditor.AbstractTextEditor.doSetInput(AbstractTextEditor.java:4230) at org.eclipse.ui.texteditor.StatusTextEditor.doSetInput(StatusTextEditor.java:237) at org.eclipse.ui.texteditor.AbstractDecoratedTextEditor.doSetInput(AbstractDecoratedTextEditor.java:1480) at org.eclipse.ui.editors.text.TextEditor.doSetInput(TextEditor.java:169) at org.eclipse.xtext.ui.editor.XtextEditor.doSetInput(XtextEditor.java:232) at org.eclipse.xtext.xbase.ui.editor.XbaseEditor.doSetInput(XbaseEditor.java:120) at org.eclipse.ui.texteditor.AbstractTextEditor$19.run(AbstractTextEditor.java:3217) at org.eclipse.jface.operation.ModalContext.runInCurrentThread(ModalContext.java:464) at org.eclipse.jface.operation.ModalContext.run(ModalContext.java:372) at org.eclipse.ui.internal.WorkbenchWindow$13.run(WorkbenchWindow.java:1818) at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70) at org.eclipse.ui.internal.WorkbenchWindow.run(WorkbenchWindow.java:1815) at org.eclipse.ui.texteditor.AbstractTextEditor.internalInit(AbstractTextEditor.java:3235) at org.eclipse.ui.texteditor.AbstractTextEditor.init(AbstractTextEditor.java:3262) at org.eclipse.xtext.ui.editor.XtextEditor.init(XtextEditor.java:255) at org.eclipse.ui.internal.EditorReference.initialize(EditorReference.java:359) at org.eclipse.ui.internal.e4.compatibility.CompatibilityPart.create(CompatibilityPart.java:306) 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.eclipse.e4.core.internal.di.MethodRequestor.execute(MethodRequestor.java:56) at org.eclipse.e4.core.internal.di.InjectorImpl.processAnnotated(InjectorImpl.java:877) at org.eclipse.e4.core.internal.di.InjectorImpl.processAnnotated(InjectorImpl.java:857) at org.eclipse.e4.core.internal.di.InjectorImpl.inject(InjectorImpl.java:119) at org.eclipse.e4.core.internal.di.InjectorImpl.internalMake(InjectorImpl.java:333) at org.eclipse.e4.core.internal.di.InjectorImpl.make(InjectorImpl.java:254) at org.eclipse.e4.core.contexts.ContextInjectionFactory.make(ContextInjectionFactory.java:162) at org.eclipse.e4.ui.internal.workbench.ReflectionContributionFactory.createFromBundle(ReflectionContributionFactory.java:102) at org.eclipse.e4.ui.internal.workbench.ReflectionContributionFactory.doCreate(ReflectionContributionFactory.java:71) at org.eclipse.e4.ui.internal.workbench.ReflectionContributionFactory.create(ReflectionContributionFactory.java:53) at org.eclipse.e4.ui.workbench.renderers.swt.ContributedPartRenderer.createWidget(ContributedPartRenderer.java:129) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.createWidget(PartRenderingEngine.java:949) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.safeCreateGui(PartRenderingEngine.java:633) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.safeCreateGui(PartRenderingEngine.java:735) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.access$2(PartRenderingEngine.java:706) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$7.run(PartRenderingEngine.java:700) at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.createGui(PartRenderingEngine.java:685) at org.eclipse.e4.ui.internal.workbench.PartServiceImpl$1.handleEvent(PartServiceImpl.java:90) at org.eclipse.e4.ui.services.internal.events.UIEventHandler$1.run(UIEventHandler.java:41) at org.eclipse.swt.widgets.Synchronizer.syncExec(Synchronizer.java:180) at org.eclipse.ui.internal.UISynchronizer.syncExec(UISynchronizer.java:150) at org.eclipse.swt.widgets.Display.syncExec(Display.java:4688) at org.eclipse.e4.ui.internal.workbench.swt.E4Application$1.syncExec(E4Application.java:205) at org.eclipse.e4.ui.services.internal.events.UIEventHandler.handleEvent(UIEventHandler.java:38) at org.eclipse.equinox.internal.event.EventHandlerWrapper.handleEvent(EventHandlerWrapper.java:197) at org.eclipse.equinox.internal.event.EventHandlerTracker.dispatchEvent(EventHandlerTracker.java:197) at org.eclipse.equinox.internal.event.EventHandlerTracker.dispatchEvent(EventHandlerTracker.java:1) at org.eclipse.osgi.framework.eventmgr.EventManager.dispatchEvent(EventManager.java:230) at org.eclipse.osgi.framework.eventmgr.ListenerQueue.dispatchEventSynchronous(ListenerQueue.java:148) at org.eclipse.equinox.internal.event.EventAdminImpl.dispatchEvent(EventAdminImpl.java:135) at org.eclipse.equinox.internal.event.EventAdminImpl.sendEvent(EventAdminImpl.java:78) at org.eclipse.equinox.internal.event.EventComponent.sendEvent(EventComponent.java:39) at org.eclipse.e4.ui.services.internal.events.EventBroker.send(EventBroker.java:80) at org.eclipse.e4.ui.internal.workbench.UIEventPublisher.notifyChanged(UIEventPublisher.java:58) at org.eclipse.emf.common.notify.impl.BasicNotifierImpl.eNotify(BasicNotifierImpl.java:374) at org.eclipse.e4.ui.model.application.ui.impl.ElementContainerImpl.setSelectedElement(ElementContainerImpl.java:171) at org.eclipse.e4.ui.internal.workbench.ModelServiceImpl.showElementInWindow(ModelServiceImpl.java:576) at org.eclipse.e4.ui.internal.workbench.ModelServiceImpl.bringToTop(ModelServiceImpl.java:543) at org.eclipse.e4.ui.internal.workbench.PartServiceImpl.delegateBringToTop(PartServiceImpl.java:610) at org.eclipse.e4.ui.internal.workbench.PartServiceImpl.bringToTop(PartServiceImpl.java:322) at org.eclipse.e4.ui.internal.workbench.PartServiceImpl.showPart(PartServiceImpl.java:1034) at org.eclipse.ui.internal.WorkbenchPage.busyOpenEditor(WorkbenchPage.java:3112) at org.eclipse.ui.internal.WorkbenchPage.access$21(WorkbenchPage.java:3034) at org.eclipse.ui.internal.WorkbenchPage$8.run(WorkbenchPage.java:3016) at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70) at org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:3012) at org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:2976) at org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:2967) at org.eclipse.ui.ide.IDE.openEditor(IDE.java:534) at org.eclipse.ui.ide.IDE.openEditor(IDE.java:493) at org.eclipse.jdt.internal.ui.javaeditor.EditorUtility.openInEditor(EditorUtility.java:360) at org.eclipse.jdt.internal.ui.javaeditor.EditorUtility.openInEditor(EditorUtility.java:167) at org.eclipse.jdt.ui.actions.OpenAction.run(OpenAction.java:268) at org.eclipse.jdt.ui.actions.OpenAction.run(OpenAction.java:233) at org.eclipse.jdt.ui.actions.SelectionDispatchAction.dispatchRun(SelectionDispatchAction.java:275) at org.eclipse.jdt.ui.actions.SelectionDispatchAction.run(SelectionDispatchAction.java:251) at org.eclipse.jdt.internal.ui.navigator.OpenAndExpand.run(OpenAndExpand.java:50) at org.eclipse.ui.actions.RetargetAction.run(RetargetAction.java:221) at org.eclipse.ui.navigator.CommonNavigatorManager$3.open(CommonNavigatorManager.java:185) at org.eclipse.ui.OpenAndLinkWithEditorHelper$InternalListener.open(OpenAndLinkWithEditorHelper.java:47) at org.eclipse.jface.viewers.StructuredViewer$2.run(StructuredViewer.java:866) at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42) at org.eclipse.ui.internal.JFaceUtil$1.run(JFaceUtil.java:49) at org.eclipse.jface.util.SafeRunnable.run(SafeRunnable.java:175) at org.eclipse.jface.viewers.StructuredViewer.fireOpen(StructuredViewer.java:864) at org.eclipse.jface.viewers.StructuredViewer.handleOpen(StructuredViewer.java:1152) at org.eclipse.ui.navigator.CommonViewer.handleOpen(CommonViewer.java:462) at org.eclipse.jface.viewers.StructuredViewer$6.handleOpen(StructuredViewer.java:1256) at org.eclipse.jface.util.OpenStrategy.fireOpenEvent(OpenStrategy.java:275) at org.eclipse.jface.util.OpenStrategy.access$2(OpenStrategy.java:269) at org.eclipse.jface.util.OpenStrategy$1.handleEvent(OpenStrategy.java:309) at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1057) at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:4170) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3759) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$9.run(PartRenderingEngine.java:1113) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:997) at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:138) at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:610) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332) at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:567) at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:150) at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:124) at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:110) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:79) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:354) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:181) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown Source) at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:636) at org.eclipse.equinox.launcher.Main.basicRun(Main.java:591) at org.eclipse.equinox.launcher.Main.run(Main.java:1450) at org.eclipse.equinox.launcher.Main.main(Main.java:1426) Caused by: java.lang.RuntimeException: java.lang.NoSuchMethodError: org.eclipse.xtend.core.services.XtendGrammarAccess$FeatureCallIDElements.getIDTerminalRuleCall_0()Lorg/eclipse/xtext/RuleCall; at org.eclipse.xtext.parser.antlr.AbstractInternalAntlrParser.parse(AbstractInternalAntlrParser.java:557) at org.eclipse.xtext.parser.antlr.AbstractAntlrParser.doParse(AbstractAntlrParser.java:102) ... 135 more Caused by: java.lang.NoSuchMethodError: org.eclipse.xtend.core.services.XtendGrammarAccess$FeatureCallIDElements.getIDTerminalRuleCall_0()Lorg/eclipse/xtext/RuleCall; at org.jnario.feature.parser.antlr.internal.InternalFeatureParser.ruleFeatureCallID(InternalFeatureParser.java:9477) at org.jnario.feature.parser.antlr.internal.InternalFeatureParser.ruleIdOrSuper(InternalFeatureParser.java:23225) at org.jnario.feature.parser.antlr.internal.InternalFeatureParser.ruleXFeatureCall(InternalFeatureParser.java:22859) at org.jnario.feature.parser.antlr.internal.InternalFeatureParser.ruleXPrimaryExpression(InternalFeatureParser.java:5192) at org.jnario.feature.parser.antlr.internal.InternalFeatureParser.ruleXMemberFeatureCall(InternalFeatureParser.java:18078) at org.jnario.feature.parser.antlr.internal.InternalFeatureParser.ruleXCastedExpression(InternalFeatureParser.java:17862) at org.jnario.feature.parser.antlr.internal.InternalFeatureParser.ruleXUnaryOperation(InternalFeatureParser.java:17620) at org.jnario.feature.parser.antlr.internal.InternalFeatureParser.ruleXMultiplicativeExpression(InternalFeatureParser.java:17093) at org.jnario.feature.parser.antlr.internal.InternalFeatureParser.ruleXAdditiveExpression(InternalFeatureParser.java:16744) at org.jnario.feature.parser.antlr.internal.InternalFeatureParser.ruleXOtherOperatorExpression(InternalFeatureParser.java:16147) at org.jnario.feature.parser.antlr.internal.InternalFeatureParser.ruleXRelationalExpression(InternalFeatureParser.java:5522) at org.jnario.feature.parser.antlr.internal.InternalFeatureParser.ruleXEqualityExpression(InternalFeatureParser.java:15573) at org.jnario.feature.parser.antlr.internal.InternalFeatureParser.ruleXAndExpression(InternalFeatureParser.java:15273) at org.jnario.feature.parser.antlr.internal.InternalFeatureParser.ruleXOrExpression(InternalFeatureParser.java:14973) at org.jnario.feature.parser.antlr.internal.InternalFeatureParser.ruleXAssignment(InternalFeatureParser.java:14550) at org.jnario.feature.parser.antlr.internal.InternalFeatureParser.ruleXExpression(InternalFeatureParser.java:14338) at org.jnario.feature.parser.antlr.internal.InternalFeatureParser.ruleXExpressionInsideBlock(InternalFeatureParser.java:22590) at org.jnario.feature.parser.antlr.internal.InternalFeatureParser.ruleBlockExpression(InternalFeatureParser.java:4954) at org.jnario.feature.parser.antlr.internal.InternalFeatureParser.ruleWhen(InternalFeatureParser.java:4004) at org.jnario.feature.parser.antlr.internal.InternalFeatureParser.ruleScenario(InternalFeatureParser.java:1830) at org.jnario.feature.parser.antlr.internal.InternalFeatureParser.ruleFeature(InternalFeatureParser.java:718) at org.jnario.feature.parser.antlr.internal.InternalFeatureParser.ruleFeatureFile(InternalFeatureParser.java:400) at org.jnario.feature.parser.antlr.internal.InternalFeatureParser.entryRuleFeatureFile(InternalFeatureParser.java:217) 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.eclipse.xtext.parser.antlr.AbstractInternalAntlrParser.parse(AbstractInternalAntlrParser.java:532) ... 136 more If I create a new feature I get the following when I try to open it: com.google.inject.ProvisionException: Guice provision errors: 1) Error injecting method, java.lang.NullPointerException at org.eclipse.xtend.ide.highlighting.XtendHighlightingCalculator.setXtendGrammarAccess(Unknown Source) while locating org.jnario.feature.ui.highlighting.FeatureSemanticHighlightingCalculator while locating org.eclipse.xtext.ui.editor.syntaxcoloring.ISemanticHighlightingCalculator for field at org.eclipse.xtext.ui.editor.syntaxcoloring.HighlightingReconciler.calculator(Unknown Source) while locating org.eclipse.xtext.ui.editor.syntaxcoloring.HighlightingReconciler 1 error at com.google.inject.internal.InjectorImpl$4.get(InjectorImpl.java:987) at org.eclipse.xtext.ui.editor.syntaxcoloring.HighlightingHelper.enable(HighlightingHelper.java:90) at org.eclipse.xtext.ui.editor.syntaxcoloring.HighlightingHelper.install(HighlightingHelper.java:79) at org.eclipse.xtext.ui.editor.syntaxcoloring.HighlightingHelper.install(HighlightingHelper.java:61) at org.eclipse.xtext.ui.editor.XtextEditor.installHighlightingHelper(XtextEditor.java:512) at org.eclipse.xtext.ui.editor.XtextEditor.createPartControl(XtextEditor.java:474) at org.eclipse.ui.internal.e4.compatibility.CompatibilityPart.createPartControl(CompatibilityPart.java:142) at org.eclipse.ui.internal.e4.compatibility.CompatibilityEditor.createPartControl(CompatibilityEditor.java:96) at org.eclipse.ui.internal.e4.compatibility.CompatibilityPart.create(CompatibilityPart.java:323) 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.eclipse.e4.core.internal.di.MethodRequestor.execute(MethodRequestor.java:56) at org.eclipse.e4.core.internal.di.InjectorImpl.processAnnotated(InjectorImpl.java:877) at org.eclipse.e4.core.internal.di.InjectorImpl.processAnnotated(InjectorImpl.java:857) at org.eclipse.e4.core.internal.di.InjectorImpl.inject(InjectorImpl.java:119) at org.eclipse.e4.core.internal.di.InjectorImpl.internalMake(InjectorImpl.java:333) at org.eclipse.e4.core.internal.di.InjectorImpl.make(InjectorImpl.java:254) at org.eclipse.e4.core.contexts.ContextInjectionFactory.make(ContextInjectionFactory.java:162) at org.eclipse.e4.ui.internal.workbench.ReflectionContributionFactory.createFromBundle(ReflectionContributionFactory.java:102) at org.eclipse.e4.ui.internal.workbench.ReflectionContributionFactory.doCreate(ReflectionContributionFactory.java:71) at org.eclipse.e4.ui.internal.workbench.ReflectionContributionFactory.create(ReflectionContributionFactory.java:53) at org.eclipse.e4.ui.workbench.renderers.swt.ContributedPartRenderer.createWidget(ContributedPartRenderer.java:129) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.createWidget(PartRenderingEngine.java:949) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.safeCreateGui(PartRenderingEngine.java:633) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.safeCreateGui(PartRenderingEngine.java:735) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.access$2(PartRenderingEngine.java:706) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$7.run(PartRenderingEngine.java:700) at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.createGui(PartRenderingEngine.java:685) at org.eclipse.e4.ui.internal.workbench.PartServiceImpl$1.handleEvent(PartServiceImpl.java:90) at org.eclipse.e4.ui.services.internal.events.UIEventHandler$1.run(UIEventHandler.java:41) at org.eclipse.swt.widgets.Synchronizer.syncExec(Synchronizer.java:180) at org.eclipse.ui.internal.UISynchronizer.syncExec(UISynchronizer.java:150) at org.eclipse.swt.widgets.Display.syncExec(Display.java:4688) at org.eclipse.e4.ui.internal.workbench.swt.E4Application$1.syncExec(E4Application.java:205) at org.eclipse.e4.ui.services.internal.events.UIEventHandler.handleEvent(UIEventHandler.java:38) at org.eclipse.equinox.internal.event.EventHandlerWrapper.handleEvent(EventHandlerWrapper.java:197) at org.eclipse.equinox.internal.event.EventHandlerTracker.dispatchEvent(EventHandlerTracker.java:197) at org.eclipse.equinox.internal.event.EventHandlerTracker.dispatchEvent(EventHandlerTracker.java:1) at org.eclipse.osgi.framework.eventmgr.EventManager.dispatchEvent(EventManager.java:230) at org.eclipse.osgi.framework.eventmgr.ListenerQueue.dispatchEventSynchronous(ListenerQueue.java:148) at org.eclipse.equinox.internal.event.EventAdminImpl.dispatchEvent(EventAdminImpl.java:135) at org.eclipse.equinox.internal.event.EventAdminImpl.sendEvent(EventAdminImpl.java:78) at org.eclipse.equinox.internal.event.EventComponent.sendEvent(EventComponent.java:39) at org.eclipse.e4.ui.services.internal.events.EventBroker.send(EventBroker.java:80) at org.eclipse.e4.ui.internal.workbench.UIEventPublisher.notifyChanged(UIEventPublisher.java:58) at org.eclipse.emf.common.notify.impl.BasicNotifierImpl.eNotify(BasicNotifierImpl.java:374) at org.eclipse.e4.ui.model.application.ui.impl.ElementContainerImpl.setSelectedElement(ElementContainerImpl.java:171) at org.eclipse.e4.ui.internal.workbench.ModelServiceImpl.showElementInWindow(ModelServiceImpl.java:576) at org.eclipse.e4.ui.internal.workbench.ModelServiceImpl.bringToTop(ModelServiceImpl.java:543) at org.eclipse.e4.ui.internal.workbench.PartServiceImpl.delegateBringToTop(PartServiceImpl.java:610) at org.eclipse.e4.ui.internal.workbench.PartServiceImpl.bringToTop(PartServiceImpl.java:322) at org.eclipse.e4.ui.internal.workbench.PartServiceImpl.showPart(PartServiceImpl.java:1034) at org.eclipse.ui.internal.WorkbenchPage.busyOpenEditor(WorkbenchPage.java:3112) at org.eclipse.ui.internal.WorkbenchPage.access$21(WorkbenchPage.java:3034) at org.eclipse.ui.internal.WorkbenchPage$8.run(WorkbenchPage.java:3016) at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70) at org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:3012) at org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:2976) at org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:2967) at org.eclipse.ui.ide.IDE.openEditor(IDE.java:534) at org.eclipse.ui.ide.IDE.openEditor(IDE.java:493) at org.eclipse.jdt.internal.ui.javaeditor.EditorUtility.openInEditor(EditorUtility.java:360) at org.eclipse.jdt.internal.ui.javaeditor.EditorUtility.openInEditor(EditorUtility.java:167) at org.eclipse.jdt.ui.actions.OpenAction.run(OpenAction.java:268) at org.eclipse.jdt.ui.actions.OpenAction.run(OpenAction.java:233) at org.eclipse.jdt.ui.actions.SelectionDispatchAction.dispatchRun(SelectionDispatchAction.java:275) at org.eclipse.jdt.ui.actions.SelectionDispatchAction.run(SelectionDispatchAction.java:251) at org.eclipse.jdt.internal.ui.navigator.OpenAndExpand.run(OpenAndExpand.java:50) at org.eclipse.ui.actions.RetargetAction.run(RetargetAction.java:221) at org.eclipse.ui.navigator.CommonNavigatorManager$3.open(CommonNavigatorManager.java:185) at org.eclipse.ui.OpenAndLinkWithEditorHelper$InternalListener.open(OpenAndLinkWithEditorHelper.java:47) at org.eclipse.jface.viewers.StructuredViewer$2.run(StructuredViewer.java:866) at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42) at org.eclipse.ui.internal.JFaceUtil$1.run(JFaceUtil.java:49) at org.eclipse.jface.util.SafeRunnable.run(SafeRunnable.java:175) at org.eclipse.jface.viewers.StructuredViewer.fireOpen(StructuredViewer.java:864) at org.eclipse.jface.viewers.StructuredViewer.handleOpen(StructuredViewer.java:1152) at org.eclipse.ui.navigator.CommonViewer.handleOpen(CommonViewer.java:462) at org.eclipse.jface.viewers.StructuredViewer$6.handleOpen(StructuredViewer.java:1256) at org.eclipse.jface.util.OpenStrategy.fireOpenEvent(OpenStrategy.java:275) at org.eclipse.jface.util.OpenStrategy.access$2(OpenStrategy.java:269) at org.eclipse.jface.util.OpenStrategy$1.handleEvent(OpenStrategy.java:309) at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1057) at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:4170) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3759) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$9.run(PartRenderingEngine.java:1113) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:997) at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:138) at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:610) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332) at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:567) at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:150) at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:124) at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:110) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:79) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:354) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:181) 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.eclipse.equinox.launcher.Main.invokeFramework(Main.java:636) at org.eclipse.equinox.launcher.Main.basicRun(Main.java:591) at org.eclipse.equinox.launcher.Main.run(Main.java:1450) at org.eclipse.equinox.launcher.Main.main(Main.java:1426) Caused by: java.lang.NullPointerException at org.eclipse.xtend.ide.highlighting.XtendHighlightingCalculator.collectKeywordsFromRule(XtendHighlightingCalculator.java:99) at org.eclipse.xtend.ide.highlighting.XtendHighlightingCalculator.setXtendGrammarAccess(XtendHighlightingCalculator.java:87) 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 com.google.inject.internal.SingleMethodInjector$1.invoke(SingleMethodInjector.java:71) at com.google.inject.internal.SingleMethodInjector.inject(SingleMethodInjector.java:90) at com.google.inject.internal.MembersInjectorImpl.injectMembers(MembersInjectorImpl.java:110) at com.google.inject.internal.ConstructorInjector.construct(ConstructorInjector.java:94) at com.google.inject.internal.ConstructorBindingImpl$Factory.get(ConstructorBindingImpl.java:254) at com.google.inject.internal.FactoryProxy.get(FactoryProxy.java:54) at com.google.inject.internal.SingleFieldInjector.inject(SingleFieldInjector.java:53) at com.google.inject.internal.MembersInjectorImpl.injectMembers(MembersInjectorImpl.java:110) at com.google.inject.internal.ConstructorInjector.construct(ConstructorInjector.java:94) at com.google.inject.internal.ConstructorBindingImpl$Factory.get(ConstructorBindingImpl.java:254) at com.google.inject.internal.InjectorImpl$4$1.call(InjectorImpl.java:978) at com.google.inject.internal.InjectorImpl.callInContext(InjectorImpl.java:1024) at com.google.inject.internal.InjectorImpl$4.get(InjectorImpl.java:974) ... 110 more And if I open an existing suite I get the following: java.lang.ArrayIndexOutOfBoundsException: 121 at org.eclipse.xtext.ui.editor.model.TokenTypeToStringMapper.getMappedValue(TokenTypeToStringMapper.java:46) at org.eclipse.xtend.ide.autoedit.TokenTypeToPartitionMapper.getMappedValue(TokenTypeToPartitionMapper.java:57) at org.eclipse.xtext.ui.editor.model.TerminalsTokenTypeToPartitionMapper.getPartitionType(TerminalsTokenTypeToPartitionMapper.java:34) at org.eclipse.xtext.ui.editor.model.PartitionTokenScanner.nextToken(PartitionTokenScanner.java:98) at org.eclipse.xtext.ui.editor.model.DocumentPartitioner.initialize(DocumentPartitioner.java:215) at org.eclipse.xtext.ui.editor.model.DocumentPartitioner.checkInitialization(DocumentPartitioner.java:198) at org.eclipse.xtext.ui.editor.model.DocumentPartitioner.connect(DocumentPartitioner.java:188) at org.eclipse.xtext.ui.editor.model.DocumentPartitioner.connect(DocumentPartitioner.java:168) at org.eclipse.xtext.ui.editor.model.XtextDocumentProvider.createDocument(XtextDocumentProvider.java:144) at org.eclipse.ui.editors.text.FileDocumentProvider.createElementInfo(FileDocumentProvider.java:737) at org.eclipse.xtext.ui.editor.model.XtextDocumentProvider.createElementInfo(XtextDocumentProvider.java:252) at org.eclipse.xtext.xbase.ui.editor.XbaseDocumentProvider.createElementInfo(XbaseDocumentProvider.java:95) at org.eclipse.ui.texteditor.AbstractDocumentProvider.connect(AbstractDocumentProvider.java:400) at org.eclipse.ui.texteditor.AbstractTextEditor.doSetInput(AbstractTextEditor.java:4230) at org.eclipse.ui.texteditor.StatusTextEditor.doSetInput(StatusTextEditor.java:237) at org.eclipse.ui.texteditor.AbstractDecoratedTextEditor.doSetInput(AbstractDecoratedTextEditor.java:1480) at org.eclipse.ui.editors.text.TextEditor.doSetInput(TextEditor.java:169) at org.eclipse.xtext.ui.editor.XtextEditor.doSetInput(XtextEditor.java:232) at org.eclipse.xtext.xbase.ui.editor.XbaseEditor.doSetInput(XbaseEditor.java:120) at org.eclipse.ui.texteditor.AbstractTextEditor$19.run(AbstractTextEditor.java:3217) at org.eclipse.jface.operation.ModalContext.runInCurrentThread(ModalContext.java:464) at org.eclipse.jface.operation.ModalContext.run(ModalContext.java:372) at org.eclipse.ui.internal.WorkbenchWindow$13.run(WorkbenchWindow.java:1818) at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70) at org.eclipse.ui.internal.WorkbenchWindow.run(WorkbenchWindow.java:1815) at org.eclipse.ui.texteditor.AbstractTextEditor.internalInit(AbstractTextEditor.java:3235) at org.eclipse.ui.texteditor.AbstractTextEditor.init(AbstractTextEditor.java:3262) at org.eclipse.xtext.ui.editor.XtextEditor.init(XtextEditor.java:255) at org.eclipse.ui.internal.EditorReference.initialize(EditorReference.java:359) at org.eclipse.ui.internal.e4.compatibility.CompatibilityPart.create(CompatibilityPart.java:306) 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.eclipse.e4.core.internal.di.MethodRequestor.execute(MethodRequestor.java:56) at org.eclipse.e4.core.internal.di.InjectorImpl.processAnnotated(InjectorImpl.java:877) at org.eclipse.e4.core.internal.di.InjectorImpl.processAnnotated(InjectorImpl.java:857) at org.eclipse.e4.core.internal.di.InjectorImpl.inject(InjectorImpl.java:119) at org.eclipse.e4.core.internal.di.InjectorImpl.internalMake(InjectorImpl.java:333) at org.eclipse.e4.core.internal.di.InjectorImpl.make(InjectorImpl.java:254) at org.eclipse.e4.core.contexts.ContextInjectionFactory.make(ContextInjectionFactory.java:162) at org.eclipse.e4.ui.internal.workbench.ReflectionContributionFactory.createFromBundle(ReflectionContributionFactory.java:102) at org.eclipse.e4.ui.internal.workbench.ReflectionContributionFactory.doCreate(ReflectionContributionFactory.java:71) at org.eclipse.e4.ui.internal.workbench.ReflectionContributionFactory.create(ReflectionContributionFactory.java:53) at org.eclipse.e4.ui.workbench.renderers.swt.ContributedPartRenderer.createWidget(ContributedPartRenderer.java:129) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.createWidget(PartRenderingEngine.java:949) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.safeCreateGui(PartRenderingEngine.java:633) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.safeCreateGui(PartRenderingEngine.java:735) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.access$2(PartRenderingEngine.java:706) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$7.run(PartRenderingEngine.java:700) at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.createGui(PartRenderingEngine.java:685) at org.eclipse.e4.ui.internal.workbench.PartServiceImpl$1.handleEvent(PartServiceImpl.java:90) at org.eclipse.e4.ui.services.internal.events.UIEventHandler$1.run(UIEventHandler.java:41) at org.eclipse.swt.widgets.Synchronizer.syncExec(Synchronizer.java:180) at org.eclipse.ui.internal.UISynchronizer.syncExec(UISynchronizer.java:150) at org.eclipse.swt.widgets.Display.syncExec(Display.java:4688) at org.eclipse.e4.ui.internal.workbench.swt.E4Application$1.syncExec(E4Application.java:205) at org.eclipse.e4.ui.services.internal.events.UIEventHandler.handleEvent(UIEventHandler.java:38) at org.eclipse.equinox.internal.event.EventHandlerWrapper.handleEvent(EventHandlerWrapper.java:197) at org.eclipse.equinox.internal.event.EventHandlerTracker.dispatchEvent(EventHandlerTracker.java:197) at org.eclipse.equinox.internal.event.EventHandlerTracker.dispatchEvent(EventHandlerTracker.java:1) at org.eclipse.osgi.framework.eventmgr.EventManager.dispatchEvent(EventManager.java:230) at org.eclipse.osgi.framework.eventmgr.ListenerQueue.dispatchEventSynchronous(ListenerQueue.java:148) at org.eclipse.equinox.internal.event.EventAdminImpl.dispatchEvent(EventAdminImpl.java:135) at org.eclipse.equinox.internal.event.EventAdminImpl.sendEvent(EventAdminImpl.java:78) at org.eclipse.equinox.internal.event.EventComponent.sendEvent(EventComponent.java:39) at org.eclipse.e4.ui.services.internal.events.EventBroker.send(EventBroker.java:80) at org.eclipse.e4.ui.internal.workbench.UIEventPublisher.notifyChanged(UIEventPublisher.java:58) at org.eclipse.emf.common.notify.impl.BasicNotifierImpl.eNotify(BasicNotifierImpl.java:374) at org.eclipse.e4.ui.model.application.ui.impl.ElementContainerImpl.setSelectedElement(ElementContainerImpl.java:171) at org.eclipse.e4.ui.internal.workbench.ModelServiceImpl.showElementInWindow(ModelServiceImpl.java:576) at org.eclipse.e4.ui.internal.workbench.ModelServiceImpl.bringToTop(ModelServiceImpl.java:543) at org.eclipse.e4.ui.internal.workbench.PartServiceImpl.delegateBringToTop(PartServiceImpl.java:610) at org.eclipse.e4.ui.internal.workbench.PartServiceImpl.bringToTop(PartServiceImpl.java:322) at org.eclipse.e4.ui.internal.workbench.PartServiceImpl.showPart(PartServiceImpl.java:1034) at org.eclipse.ui.internal.WorkbenchPage.busyOpenEditor(WorkbenchPage.java:3112) at org.eclipse.ui.internal.WorkbenchPage.access$21(WorkbenchPage.java:3034) at org.eclipse.ui.internal.WorkbenchPage$8.run(WorkbenchPage.java:3016) at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70) at org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:3012) at org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:2976) at org.eclipse.ui.internal.WorkbenchPage.openEditor(WorkbenchPage.java:2967) at org.eclipse.ui.ide.IDE.openEditor(IDE.java:534) at org.eclipse.ui.ide.IDE.openEditor(IDE.java:493) at org.eclipse.jdt.internal.ui.javaeditor.EditorUtility.openInEditor(EditorUtility.java:360) at org.eclipse.jdt.internal.ui.javaeditor.EditorUtility.openInEditor(EditorUtility.java:167) at org.eclipse.jdt.ui.actions.OpenAction.run(OpenAction.java:268) at org.eclipse.jdt.ui.actions.OpenAction.run(OpenAction.java:233) at org.eclipse.jdt.ui.actions.SelectionDispatchAction.dispatchRun(SelectionDispatchAction.java:275) at org.eclipse.jdt.ui.actions.SelectionDispatchAction.run(SelectionDispatchAction.java:251) at org.eclipse.jdt.internal.ui.navigator.OpenAndExpand.run(OpenAndExpand.java:50) at org.eclipse.ui.actions.RetargetAction.run(RetargetAction.java:221) at org.eclipse.ui.navigator.CommonNavigatorManager$3.open(CommonNavigatorManager.java:185) at org.eclipse.ui.OpenAndLinkWithEditorHelper$InternalListener.open(OpenAndLinkWithEditorHelper.java:47) at org.eclipse.jface.viewers.StructuredViewer$2.run(StructuredViewer.java:866) at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42) at org.eclipse.ui.internal.JFaceUtil$1.run(JFaceUtil.java:49) at org.eclipse.jface.util.SafeRunnable.run(SafeRunnable.java:175) at org.eclipse.jface.viewers.StructuredViewer.fireOpen(StructuredViewer.java:864) at org.eclipse.jface.viewers.StructuredViewer.handleOpen(StructuredViewer.java:1152) at org.eclipse.ui.navigator.CommonViewer.handleOpen(CommonViewer.java:462) at org.eclipse.jface.viewers.StructuredViewer$6.handleOpen(StructuredViewer.java:1256) at org.eclipse.jface.util.OpenStrategy.fireOpenEvent(OpenStrategy.java:275) at org.eclipse.jface.util.OpenStrategy.access$2(OpenStrategy.java:269) at org.eclipse.jface.util.OpenStrategy$1.handleEvent(OpenStrategy.java:309) at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:84) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1057) at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:4170) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3759) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$9.run(PartRenderingEngine.java:1113) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:997) at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:138) at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:610) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332) at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:567) at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:150) at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:124) at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:110) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:79) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:354) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:181) 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.eclipse.equinox.launcher.Main.invokeFramework(Main.java:636) at org.eclipse.equinox.launcher.Main.basicRun(Main.java:591) at org.eclipse.equinox.launcher.Main.run(Main.java:1450) at org.eclipse.equinox.launcher.Main.main(Main.java:1426)