java.lang.Throwable: Assertion failed: Undoable actions allowed inside commands only

[WeOneGuy]

java.lang.Throwable: Assertion failed: Undoable actions allowed inside commands only (see com.intellij.openapi.command.CommandProcessor.executeCommand()) at com.intellij.openapi.diagnostic.Logger.assertTrue(Logger.java:465) at com.intellij.openapi.command.impl.UndoManagerImpl.undoableActionPerformed(UndoManagerImpl.java:335) at com.intellij.refactoring.suggested.SuggestedRefactoringChangeCollector.editingStarted(SuggestedRefactoringChangeCollector.kt:34) at com.intellij.refactoring.suggested.SuggestedRefactoringChangeListener.processBeforeFirstChangeWithPsiAndDocumentInSync(SuggestedRefactoringChangeListener.kt:142) at com.intellij.refactoring.suggested.SuggestedRefactoringChangeListener.access$processBeforeFirstChangeWithPsiAndDocumentInSync(SuggestedRefactoringChangeListener.kt:22) at com.intellij.refactoring.suggested.SuggestedRefactoringChangeListener$MyDocumentListener.beforeDocumentChange(SuggestedRefactoringChangeListener.kt:210) at jdk.internal.reflect.GeneratedMethodAccessor204.invoke(Unknown Source) at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.base/java.lang.reflect.Method.invoke(Method.java:568) at com.intellij.util.EventDispatcher.dispatchVoidMethod(EventDispatcher.java:118) at com.intellij.util.EventDispatcher.lambda$createMulticaster$1(EventDispatcher.java:83) at jdk.proxy2/jdk.proxy2.$Proxy82.beforeDocumentChange(Unknown Source) at com.intellij.openapi.editor.impl.DocumentImpl.lambda$beforeChangedUpdate$0(DocumentImpl.java:872) at com.intellij.openapi.progress.impl.CoreProgressManager.lambda$executeNonCancelableSection$3(CoreProgressManager.java:222) at com.intellij.openapi.progress.impl.CoreProgressManager.registerIndicatorAndRun(CoreProgressManager.java:679) at com.intellij.openapi.progress.impl.CoreProgressManager.computeUnderProgress(CoreProgressManager.java:635) at com.intellij.openapi.progress.impl.CoreProgressManager.lambda$computeInNonCancelableSection$4(CoreProgressManager.java:230) at com.intellij.openapi.progress.Cancellation.computeInNonCancelableSection(Cancellation.java:64) at com.intellij.openapi.progress.impl.CoreProgressManager.computeInNonCancelableSection(CoreProgressManager.java:230) at com.intellij.openapi.progress.impl.CoreProgressManager.executeNonCancelableSection(CoreProgressManager.java:221) at com.intellij.openapi.editor.impl.DocumentImpl.beforeChangedUpdate(DocumentImpl.java:869) at com.intellij.openapi.editor.impl.DocumentImpl.updateText(DocumentImpl.java:808) at com.intellij.openapi.editor.impl.DocumentImpl.deleteString(DocumentImpl.java:570) at com.tabnineCommon.inline.CompletionPreview.applyPreviewInternal(CompletionPreview.java:168) at com.tabnineCommon.inline.CompletionPreview.applyPreview(CompletionPreview.java:152) at com.tabnineCommon.inline.AcceptTabnineInlineCompletionAction$AcceptInlineCompletionHandler.executeWriteAction(AcceptTabnineInlineCompletionAction.kt:18) at com.intellij.openapi.editor.actionSystem.EditorWriteActionHandler$1.run(EditorWriteActionHandler.java:56) at com.intellij.openapi.application.impl.ApplicationImpl.runWriteAction(ApplicationImpl.java:992) at com.intellij.openapi.editor.actionSystem.EditorWriteActionHandler.doExecute(EditorWriteActionHandler.java:70) at com.intellij.openapi.editor.actionSystem.DynamicEditorActionHandler.doExecute(DynamicEditorActionHandler.java:63) at com.intellij.openapi.editor.actionSystem.EditorActionHandler.lambda$execute$4(EditorActionHandler.java:199) at com.intellij.openapi.editor.actionSystem.EditorActionHandler.doIfEnabled(EditorActionHandler.java:89) at com.intellij.openapi.editor.actionSystem.EditorActionHandler.execute(EditorActionHandler.java:198) at com.intellij.openapi.editor.actionSystem.EditorAction.lambda$actionPerformed$0(EditorAction.java:93) at com.intellij.openapi.command.impl.CoreCommandProcessor.executeCommand(CoreCommandProcessor.java:219) at com.intellij.openapi.command.impl.CoreCommandProcessor.executeCommand(CoreCommandProcessor.java:174) at com.intellij.openapi.editor.actionSystem.EditorAction.actionPerformed(EditorAction.java:102) at com.intellij.openapi.editor.actionSystem.EditorAction.actionPerformed(EditorAction.java:77) at com.intellij.openapi.actionSystem.ex.ActionUtil.doPerformActionOrShowPopup(ActionUtil.java:339) at com.intellij.openapi.keymap.impl.ActionProcessor.performAction(ActionProcessor.java:47) at com.intellij.openapi.keymap.impl.IdeKeyEventDispatcher$myActionProcessor$1.performAction(IdeKeyEventDispatcher.kt:502) at com.intellij.openapi.keymap.impl.IdeKeyEventDispatcherKt.doPerformActionInner$lambda$5$lambda$4(IdeKeyEventDispatcher.kt:865) at com.intellij.openapi.application.TransactionGuardImpl.performActivity(TransactionGuardImpl.java:105) at com.intellij.openapi.application.TransactionGuardImpl.performUserActivity(TransactionGuardImpl.java:94) at com.intellij.openapi.keymap.impl.IdeKeyEventDispatcherKt.doPerformActionInner$lambda$5(IdeKeyEventDispatcher.kt:865) at com.intellij.openapi.actionSystem.ex.ActionUtil.performDumbAwareWithCallbacks(ActionUtil.java:362) at com.intellij.openapi.keymap.impl.IdeKeyEventDispatcherKt.doPerformActionInner(IdeKeyEventDispatcher.kt:863) at com.intellij.openapi.keymap.impl.IdeKeyEventDispatcherKt.access$doPerformActionInner(IdeKeyEventDispatcher.kt:1) at com.intellij.openapi.keymap.impl.IdeKeyEventDispatcher.processAction$intellij_platform_ide_impl(IdeKeyEventDispatcher.kt:587) at com.intellij.openapi.keymap.impl.IdeKeyEventDispatcher.processAction(IdeKeyEventDispatcher.kt:513) at com.intellij.openapi.keymap.impl.IdeKeyEventDispatcher.processActionOrWaitSecondStroke(IdeKeyEventDispatcher.kt:454) at com.intellij.openapi.keymap.impl.IdeKeyEventDispatcher.inInitState(IdeKeyEventDispatcher.kt:447) at com.intellij.openapi.keymap.impl.IdeKeyEventDispatcher.dispatchKeyEvent(IdeKeyEventDispatcher.kt:309) at com.intellij.ide.IdeEventQueue.dispatchKeyEvent(IdeEventQueue.kt:617) at com.intellij.ide.IdeEventQueue._dispatchEvent(IdeEventQueue.kt:587) at com.intellij.ide.IdeEventQueue.access$_dispatchEvent(IdeEventQueue.kt:67) at com.intellij.ide.IdeEventQueue$dispatchEvent$processEventRunnable$1$1$1.compute(IdeEventQueue.kt:369) at com.intellij.ide.IdeEventQueue$dispatchEvent$processEventRunnable$1$1$1.compute(IdeEventQueue.kt:368) at com.intellij.openapi.progress.impl.CoreProgressManager.computePrioritized(CoreProgressManager.java:787) at com.intellij.ide.IdeEventQueue$dispatchEvent$processEventRunnable$1$1.invoke(IdeEventQueue.kt:368) at com.intellij.ide.IdeEventQueue$dispatchEvent$processEventRunnable$1$1.invoke(IdeEventQueue.kt:363) at com.intellij.ide.IdeEventQueueKt.performActivity$lambda$1(IdeEventQueue.kt:992) at com.intellij.openapi.application.TransactionGuardImpl.performActivity(TransactionGuardImpl.java:113) at com.intellij.ide.IdeEventQueueKt.performActivity(IdeEventQueue.kt:992) at com.intellij.ide.IdeEventQueue.dispatchEvent$lambda$7(IdeEventQueue.kt:363) at com.intellij.openapi.application.impl.ApplicationImpl.runIntendedWriteActionOnCurrentThread(ApplicationImpl.java:861) at com.intellij.ide.IdeEventQueue.dispatchEvent(IdeEventQueue.kt:405) at java.desktop/java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:207) at java.desktop/java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:128) at java.desktop/java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:117) at java.desktop/java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:113) at java.desktop/java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:105) at java.desktop/java.awt.EventDispatchThread.run(EventDispatchThread.java:92)

Quite random error, occours when i'm using Tabnine for code completion

gz#25422

(related to Zendesk ticket #25422)

[zaycker]

#553 (comment)

[TzufTabnine]

Make sure you have the latest version of Tabnine (1.0.37). It should solve the issue.