I cant open tasks. I mean I can open the task but there is no page with description what to do... it happend after i updated IntelJ IDEA. There was everything allright before it. java.lang.NoClassDefFoundError: javafx/embed/swing/JFXPanel at com.homework.plugin.TestEditor.<init>(TestEditor.java:44) at com.homework.plugin.TestEditorProvider.createEditor(TestEditorProvider.java:52) at com.intellij.openapi.fileEditor.impl.FileEditorManagerImpl.openFileImpl4Edt(FileEditorManagerImpl.java:806) at com.intellij.openapi.fileEditor.impl.FileEditorManagerImpl.lambda$openFileImpl4$8(FileEditorManagerImpl.java:775) at com.intellij.openapi.fileEditor.impl.FileEditorManagerImpl.runBulkTabChange(FileEditorManagerImpl.java:1594) at com.intellij.openapi.fileEditor.impl.FileEditorManagerImpl.lambda$openFileImpl4$9(FileEditorManagerImpl.java:774) at com.intellij.openapi.application.impl.ApplicationImpl.invokeAndWait(ApplicationImpl.java:462) at com.intellij.openapi.application.impl.ApplicationImpl.invokeAndWait(ApplicationImpl.java:480) at com.intellij.openapi.fileEditor.impl.FileEditorManagerImpl.openFileImpl4(FileEditorManagerImpl.java:773) at com.intellij.openapi.fileEditor.impl.FileEditorManagerImpl.openFileImpl3(FileEditorManagerImpl.java:719) at com.intellij.openapi.fileEditor.impl.FileEditorManagerImpl.lambda$openFileImpl2$5(FileEditorManagerImpl.java:703) at com.intellij.openapi.command.impl.CoreCommandProcessor.executeCommand(CoreCommandProcessor.java:220) at com.intellij.openapi.command.impl.CoreCommandProcessor.executeCommand(CoreCommandProcessor.java:177) at com.intellij.openapi.command.impl.CoreCommandProcessor.executeCommand(CoreCommandProcessor.java:167) at com.intellij.openapi.command.impl.CoreCommandProcessor.executeCommand(CoreCommandProcessor.java:153) at com.intellij.openapi.fileEditor.impl.FileEditorManagerImpl.openFileImpl2(FileEditorManagerImpl.java:703) at com.intellij.openapi.fileEditor.impl.FileEditorManagerImpl.openFileWithProviders(FileEditorManagerImpl.java:636) at com.intellij.openapi.fileEditor.ex.FileEditorManagerEx.openFile(FileEditorManagerEx.java:126) at com.homework.plugin.TaskInfoSelectorMouseListener.selectTask(TaskInfoSelectorMouseListener.java:145) at com.homework.plugin.TaskInfoSelectorMouseListener.mouseClicked(TaskInfoSelectorMouseListener.java:90) at java.desktop/java.awt.AWTEventMulticaster.mouseClicked(AWTEventMulticaster.java:278) at java.desktop/java.awt.Component.processMouseEvent(Component.java:6653) at java.desktop/javax.swing.JComponent.processMouseEvent(JComponent.java:3345) at java.desktop/java.awt.Component.processEvent(Component.java:6415) at java.desktop/java.awt.Container.processEvent(Container.java:2263) at java.desktop/java.awt.Component.dispatchEventImpl(Component.java:5025) at java.desktop/java.awt.Container.dispatchEventImpl(Container.java:2321) at java.desktop/java.awt.Component.dispatchEvent(Component.java:4857) at java.desktop/java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4918) at java.desktop/java.awt.LightweightDispatcher.processMouseEvent(Container.java:4556) at java.desktop/java.awt.LightweightDispatcher.dispatchEvent(Container.java:4488) at java.desktop/java.awt.Container.dispatchEventImpl(Container.java:2307) at java.desktop/java.awt.Window.dispatchEventImpl(Window.java:2773) at java.desktop/java.awt.Component.dispatchEvent(Component.java:4857) at java.desktop/java.awt.EventQueue.dispatchEventImpl(EventQueue.java:778) at java.desktop/java.awt.EventQueue$4.run(EventQueue.java:727) at java.desktop/java.awt.EventQueue$4.run(EventQueue.java:721) at java.base/java.security.AccessController.doPrivileged(Native Method) at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:85) at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:95) at java.desktop/java.awt.EventQueue$5.run(EventQueue.java:751) at java.desktop/java.awt.EventQueue$5.run(EventQueue.java:749) at java.base/java.security.AccessController.doPrivileged(Native Method) at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:85) at java.desktop/java.awt.EventQueue.dispatchEvent(EventQueue.java:748) at com.intellij.ide.IdeEventQueue.defaultDispatchEvent(IdeEventQueue.java:967) at com.intellij.ide.IdeEventQueue.dispatchMouseEvent(IdeEventQueue.java:904) at com.intellij.ide.IdeEventQueue._dispatchEvent(IdeEventQueue.java:836) at com.intellij.ide.IdeEventQueue.lambda$dispatchEvent$8(IdeEventQueue.java:450) at com.intellij.openapi.progress.impl.CoreProgressManager.computePrioritized(CoreProgressManager.java:744) at com.intellij.ide.IdeEventQueue.lambda$dispatchEvent$9(IdeEventQueue.java:449) at com.intellij.openapi.application.impl.ApplicationImpl.runIntendedWriteActionOnCurrentThread(ApplicationImpl.java:802) at com.intellij.ide.IdeEventQueue.dispatchEvent(IdeEventQueue.java:503) at java.desktop/java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:203) at java.desktop/java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:124) at java.desktop/java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:117) at java.desktop/java.awt.WaitDispatchSupport$2.run(WaitDispatchSupport.java:190) at java.desktop/java.awt.WaitDispatchSupport$4.run(WaitDispatchSupport.java:235) at java.desktop/java.awt.WaitDispatchSupport$4.run(WaitDispatchSupport.java:233) at java.base/java.security.AccessController.doPrivileged(Native Method) at java.desktop/java.awt.WaitDispatchSupport.enter(WaitDispatchSupport.java:233) at java.desktop/java.awt.Dialog.show(Dialog.java:1063) at com.intellij.openapi.ui.impl.DialogWrapperPeerImpl$MyDialog.show(DialogWrapperPeerImpl.java:710) at com.intellij.openapi.ui.impl.DialogWrapperPeerImpl.show(DialogWrapperPeerImpl.java:437) at com.intellij.openapi.ui.DialogWrapper.doShow(DialogWrapper.java:1702) at com.intellij.openapi.ui.DialogWrapper.show(DialogWrapper.java:1661) at com.homework.plugin.button.SelectTaskButton.actionPerformed(SelectTaskButton.java:24) at com.intellij.openapi.actionSystem.ex.ActionUtil.performActionDumbAware(ActionUtil.java:282) at com.intellij.openapi.actionSystem.ex.ActionUtil.performActionDumbAwareWithCallbacks(ActionUtil.java:276) at com.intellij.openapi.actionSystem.impl.ActionButton.actionPerformed(ActionButton.java:182) at com.intellij.openapi.actionSystem.impl.ActionButton.performAction(ActionButton.java:155) at com.intellij.openapi.actionSystem.impl.ActionButton.processMouseEvent(ActionButton.java:439) at java.desktop/java.awt.Component.processEvent(Component.java:6415) at java.desktop/java.awt.Container.processEvent(Container.java:2263) at java.desktop/java.awt.Component.dispatchEventImpl(Component.java:5025) at java.desktop/java.awt.Container.dispatchEventImpl(Container.java:2321) at java.desktop/java.awt.Component.dispatchEvent(Component.java:4857) at java.desktop/java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4918) at java.desktop/java.awt.LightweightDispatcher.processMouseEvent(Container.java:4547) at java.desktop/java.awt.LightweightDispatcher.dispatchEvent(Container.java:4488) at java.desktop/java.awt.Container.dispatchEventImpl(Container.java:2307) at java.desktop/java.awt.Window.dispatchEventImpl(Window.java:2773) at java.desktop/java.awt.Component.dispatchEvent(Component.java:4857) at java.desktop/java.awt.EventQueue.dispatchEventImpl(EventQueue.java:778) at java.desktop/java.awt.EventQueue$4.run(EventQueue.java:727) at java.desktop/java.awt.EventQueue$4.run(EventQueue.java:721) at java.base/java.security.AccessController.doPrivileged(Native Method) at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:85) at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:95) at java.desktop/java.awt.EventQueue$5.run(EventQueue.java:751) at java.desktop/java.awt.EventQueue$5.run(EventQueue.java:749) at java.base/java.security.AccessController.doPrivileged(Native Method) at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:85) at java.desktop/java.awt.EventQueue.dispatchEvent(EventQueue.java:748) at com.intellij.ide.IdeEventQueue.defaultDispatchEvent(IdeEventQueue.java:967) at com.intellij.ide.IdeEventQueue.dispatchMouseEvent(IdeEventQueue.java:904) at com.intellij.ide.IdeEventQueue._dispatchEvent(IdeEventQueue.java:836) at com.intellij.ide.IdeEventQueue.lambda$dispatchEvent$8(IdeEventQueue.java:450) at com.intellij.openapi.progress.impl.CoreProgressManager.computePrioritized(CoreProgressManager.java:744) at com.intellij.ide.IdeEventQueue.lambda$dispatchEvent$9(IdeEventQueue.java:449) at com.intellij.openapi.application.impl.ApplicationImpl.runIntendedWriteActionOnCurrentThread(ApplicationImpl.java:802) at com.intellij.ide.IdeEventQueue.dispatchEvent(IdeEventQueue.java:503) at java.desktop/java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:203) at java.desktop/java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:124) at java.desktop/java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:113) at java.desktop/java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:109) at java.desktop/java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101) at java.desktop/java.awt.EventDispatchThread.run(EventDispatchThread.java:90) Caused by: java.lang.ClassNotFoundException: javafx.embed.swing.JFXPanel PluginClassLoader[PluginDescriptor(name=CodeGymHomeWork, id=com.codegym.plugin2, path=C:\Users\Elize\AppData\Roaming\JetBrains\IdeaIC2020.2\plugins\CodeGymIdeaPlugin.jar, version=3.38)] com.intellij.ide.plugins.cl.PluginClassLoader@6c50c531 at com.intellij.ide.plugins.cl.PluginClassLoader.loadClass(PluginClassLoader.java:95) at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:522) ... 108 more