Problem with CHelper

#	User	Rating
1	tourist	4009
2	jiangly	3823
3	Benq	3738
4	Radewoosh	3633
5	jqdai0815	3620
6	orzdevinwang	3529
7	ecnerwala	3446
8	Um_nik	3396
9	ksun48	3390
10	gamegame	3386

#	User	Contrib.
1	cry	164
1	maomao90	164
3	Um_nik	163
4	atcoder_official	160
5	-is-this-fft-	158
6	adamant	157
6	awoo	157
8	TheScrasse	154
8	nor	154
10	djm03178	153

Just downloaded and installed CHelper v4.4.2 (Windows 10) and got this error:

java.lang.IncompatibleClassChangeError: Method 'com.intellij.openapi.roots.libraries.LibraryTable com.intellij.openapi.roots.impl.libraries.ProjectLibraryTable.getInstance(com.intellij.openapi.project.Project)' must be InterfaceMethodref constant

So, does anyone know the solution to this or has experienced this before?

2020-08-30 19:37:56,917 [ 3488] ERROR - ect.impl.ProjectFrameAllocator - java.lang.IncompatibleClassChangeError: Method 'com.intellij.openapi.roots.libraries.LibraryTable com.intellij.openapi.roots.impl.libraries.ProjectLibraryTable.getInstance(com.intellij.openapi.project.Project)' must be InterfaceMethodref constant java.lang.RuntimeException: java.lang.IncompatibleClassChangeError: Method 'com.intellij.openapi.roots.libraries.LibraryTable com.intellij.openapi.roots.impl.libraries.ProjectLibraryTable.getInstance(com.intellij.openapi.project.Project)' must be InterfaceMethodref constant at com.intellij.openapi.application.impl.LaterInvocator.invokeAndWait(LaterInvocator.java:149) at com.intellij.openapi.application.impl.ApplicationImpl.invokeAndWait(ApplicationImpl.java:475) at com.intellij.openapi.application.impl.ApplicationImpl.invokeAndWait(ApplicationImpl.java:480) at com.intellij.openapi.project.impl.ProjectManagerExImplKt.openProject(ProjectManagerExImpl.kt:304) at com.intellij.openapi.project.impl.ProjectManagerExImplKt.access$openProject(ProjectManagerExImpl.kt:1) at com.intellij.openapi.project.impl.ProjectManagerExImpl.doOpenProject$intellij_platform_ide_impl(ProjectManagerExImpl.kt:147) at com.intellij.openapi.project.impl.ProjectManagerExImpl$openProject$$$$inlined$$$runInAutoSaveDisabledMode$$$lambda$$$1.invoke(ProjectManagerExImpl.kt:110) at com.intellij.openapi.project.impl.ProjectManagerExImpl$$$openProject$$$$inlined$runInAutoSaveDisabledMode$lambda$1.invoke(ProjectManagerExImpl.kt:47) at com.intellij.openapi.project.impl.ProjectUiFrameAllocator$run$1$progressTask$1.run(ProjectFrameAllocator.kt:97) at com.intellij.openapi.progress.impl.CoreProgressManager$TaskRunnable.run(CoreProgressManager.java:935) at com.intellij.openapi.progress.impl.CoreProgressManager$4.run(CoreProgressManager.java:490) at com.intellij.openapi.progress.impl.ProgressRunner.lambda$new$0(ProgressRunner.java:79) at com.intellij.openapi.progress.impl.ProgressRunner.lambda$submit$3(ProgressRunner.java:235) at com.intellij.openapi.progress.impl.CoreProgressManager.lambda$runProcess$2(CoreProgressManager.java:170) at com.intellij.openapi.progress.impl.CoreProgressManager.registerIndicatorAndRun(CoreProgressManager.java:629) at com.intellij.openapi.progress.impl.CoreProgressManager.executeProcessUnderProgress(CoreProgressManager.java:581) at com.intellij.openapi.progress.impl.ProgressManagerImpl.executeProcessUnderProgress(ProgressManagerImpl.java:60) at com.intellij.openapi.progress.impl.CoreProgressManager.runProcess(CoreProgressManager.java:157) at com.intellij.openapi.progress.impl.ProgressRunner.lambda$submit$4(ProgressRunner.java:235) at java.base/java.util.concurrent.CompletableFuture$AsyncSupply.run(CompletableFuture.java:1700) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628) at java.base/java.util.concurrent.Executors$PrivilegedThreadFactory$1$1.run(Executors.java:668) at java.base/java.util.concurrent.Executors$PrivilegedThreadFactory$1$1.run(Executors.java:665) at java.base/java.security.AccessController.doPrivileged(Native Method) at java.base/java.util.concurrent.Executors$PrivilegedThreadFactory$1.run(Executors.java:665) at java.base/java.lang.Thread.run(Thread.java:834) Caused by: java.lang.IncompatibleClassChangeError: Method 'com.intellij.openapi.roots.libraries.LibraryTable com.intellij.openapi.roots.impl.libraries.ProjectLibraryTable.getInstance(com.intellij.openapi.project.Project)' must be InterfaceMethodref constant at net.egork.chelper.util.Utilities$2.run(Utilities.java:108) at com.intellij.openapi.application.impl.ApplicationImpl.runWriteAction(ApplicationImpl.java:980) at net.egork.chelper.util.Utilities.fixLibrary(Utilities.java:105) at net.egork.chelper.util.Utilities.ensureLibrary(Utilities.java:100) at net.egork.chelper.util.Utilities.access$100(Utilities.java:56) at net.egork.chelper.util.Utilities$1.projectOpened(Utilities.java:74) at com.intellij.openapi.project.impl.ProjectManagerImpl$1.projectOpened(ProjectManagerImpl.java:89) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.base/java.lang.reflect.Method.invoke(Method.java:566) at com.intellij.util.messages.impl.MessageBusImpl.invokeListener(MessageBusImpl.java:636) at com.intellij.util.messages.impl.MessageBusImpl.deliverMessage(MessageBusImpl.java:406) at com.intellij.util.messages.impl.MessageBusImpl.pumpWaitingBuses(MessageBusImpl.java:384) at com.intellij.util.messages.impl.MessageBusImpl.pumpMessages(MessageBusImpl.java:366) at com.intellij.util.messages.impl.MessageBusImpl.access$100(MessageBusImpl.java:32) at com.intellij.util.messages.impl.MessageBusImpl$MessagePublisher.invoke(MessageBusImpl.java:187) at com.sun.proxy.$Proxy60.projectOpened(Unknown Source) at com.intellij.openapi.project.impl.ProjectManagerExImplKt$openProject$1.run(ProjectManagerExImpl.kt:313) at com.intellij.openapi.application.TransactionGuardImpl$2.run(TransactionGuardImpl.java:201) at com.intellij.openapi.application.impl.ApplicationImpl.runIntendedWriteActionOnCurrentThread(ApplicationImpl.java:802) at com.intellij.openapi.application.impl.ApplicationImpl.lambda$invokeAndWait$8(ApplicationImpl.java:475) at com.intellij.openapi.application.impl.LaterInvocator$1.run(LaterInvocator.java:126) at com.intellij.openapi.application.impl.FlushQueue.doRun(FlushQueue.java:84) at com.intellij.openapi.application.impl.FlushQueue.runNextEvent(FlushQueue.java:132) at com.intellij.openapi.application.impl.FlushQueue.flushNow(FlushQueue.java:47) at com.intellij.openapi.application.impl.FlushQueue$FlushNow.run(FlushQueue.java:188) at java.desktop/java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:313) at java.desktop/java.awt.EventQueue.dispatchEventImpl(EventQueue.java:776) 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.desktop/java.awt.EventQueue.dispatchEvent(EventQueue.java:746) at com.intellij.ide.IdeEventQueue.defaultDispatchEvent(IdeEventQueue.java:971) at com.intellij.ide.IdeEventQueue._dispatchEvent(IdeEventQueue.java:841) at com.intellij.ide.IdeEventQueue.lambda$dispatchEvent$8(IdeEventQueue.java:452) at com.intellij.openapi.progress.impl.CoreProgressManager.computePrioritized(CoreProgressManager.java:733) at com.intellij.ide.IdeEventQueue.lambda$dispatchEvent$9(IdeEventQueue.java:451) at com.intellij.openapi.application.impl.ApplicationImpl.runIntendedWriteActionOnCurrentThread(ApplicationImpl.java:802) at com.intellij.ide.IdeEventQueue.dispatchEvent(IdeEventQueue.java:499) at com.intellij.ide.IdeEventQueue.pumpEventsForHierarchy(IdeEventQueue.java:1048) at com.intellij.openapi.progress.util.ProgressWindow.pumpEventsForHierarchy(ProgressWindow.java:225) at com.intellij.openapi.progress.util.ProgressWindow.lambda$startBlocking$4(ProgressWindow.java:214) at com.intellij.openapi.application.impl.ApplicationImpl.runUnlockingIntendedWrite(ApplicationImpl.java:828) at com.intellij.openapi.progress.util.ProgressWindow.startBlocking(ProgressWindow.java:213) at com.intellij.openapi.progress.impl.ProgressRunner.lambda$legacyExec$6(ProgressRunner.java:304) at java.base/java.util.concurrent.CompletableFuture.uniAcceptNow(CompletableFuture.java:753) at java.base/java.util.concurrent.CompletableFuture.uniAcceptStage(CompletableFuture.java:731) at java.base/java.util.concurrent.CompletableFuture.thenAccept(CompletableFuture.java:2108) at com.intellij.openapi.progress.impl.ProgressRunner.legacyExec(ProgressRunner.java:302) at com.intellij.openapi.progress.impl.ProgressRunner.submit(ProgressRunner.java:250) at com.intellij.openapi.progress.impl.ProgressRunner.submitAndGet(ProgressRunner.java:171) at com.intellij.openapi.application.impl.ApplicationImpl.runProcessWithProgressSynchronously(ApplicationImpl.java:421) at com.intellij.openapi.progress.impl.CoreProgressManager.runProcessWithProgressSynchronously(CoreProgressManager.java:502) at com.intellij.openapi.progress.impl.ProgressManagerImpl.runProcessWithProgressSynchronously(ProgressManagerImpl.java:83) at com.intellij.openapi.project.impl.ProjectUiFrameAllocator$run$1.run(ProjectFrameAllocator.kt:113) 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.project.impl.ProjectUiFrameAllocator.run(ProjectFrameAllocator.kt:77) at com.intellij.openapi.project.impl.ProjectManagerExImpl.openProject(ProjectManagerExImpl.kt:98) at com.intellij.ide.RecentProjectsManagerBase.openProject(RecentProjectsManagerBase.kt:305) at com.intellij.ide.ReopenProjectAction.actionPerformed(ReopenProjectAction.java:65) 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.wm.impl.welcomeScreen.RecentProjectPanel.performSelectedAction(RecentProjectPanel.java:206) at com.intellij.openapi.wm.impl.welcomeScreen.RecentProjectPanel.access$000(RecentProjectPanel.java:63) at com.intellij.openapi.wm.impl.welcomeScreen.RecentProjectPanel$2.onClick(RecentProjectPanel.java:119) at com.intellij.ui.ClickListener$1.mouseReleased(ClickListener.java:63) at java.desktop/java.awt.AWTEventMulticaster.mouseReleased(AWTEventMulticaster.java:298) at java.desktop/java.awt.AWTEventMulticaster.mouseReleased(AWTEventMulticaster.java:297) at java.desktop/java.awt.AWTEventMulticaster.mouseReleased(AWTEventMulticaster.java:297) at java.desktop/java.awt.Component.processMouseEvent(Component.java:6654) at java.desktop/javax.swing.JComponent.processMouseEvent(JComponent.java:3345) at java.desktop/java.awt.Component.processEvent(Component.java:6419) at java.desktop/java.awt.Container.processEvent(Container.java:2263) at java.desktop/java.awt.Component.dispatchEventImpl(Component.java:5029) at java.desktop/java.awt.Container.dispatchEventImpl(Container.java:2321) at java.desktop/java.awt.Component.dispatchEvent(Component.java:4861) 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:4861) 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:971) at com.intellij.ide.IdeEventQueue.dispatchMouseEvent(IdeEventQueue.java:906) at com.intellij.ide.IdeEventQueue._dispatchEvent(IdeEventQueue.java:838) at com.intellij.ide.IdeEventQueue.lambda$dispatchEvent$8(IdeEventQueue.java:452) at com.intellij.openapi.progress.impl.CoreProgressManager.computePrioritized(CoreProgressManager.java:744) at com.intellij.ide.IdeEventQueue.lambda$dispatchEvent$9(IdeEventQueue.java:451) at com.intellij.openapi.application.impl.ApplicationImpl.runIntendedWriteActionOnCurrentThread(ApplicationImpl.java:802) at com.intellij.ide.IdeEventQueue.dispatchEvent(IdeEventQueue.java:505) 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)

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