Copilot plugin for PyCharm does not work in Remote Development (WSL2/Ubuntu 20.04)

[forest-spells]

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Bug

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Copilot completions do not show while working on WSL in PyCharm.
Neither the installation on Host nor on Client helped in my case. Moreover my subscription is active and on my private computer Copilot completions works fine, and the problem occurs only while working on WSL.

PyCharm version: 2023.3.2; Copilot: 1.149.0

Exc. 1 (installed on Client):

java.lang.NoClassDefFoundError: com/intellij/collaboration/ui/CollaborationToolsUIUtil
at com.github.copilot.chat.waitlist.WaitlistInformationalPanelKt$waitlistInformationalPanel$1$5$2.invoke(WaitlistInformationalPanel.kt:49)
at com.github.copilot.chat.waitlist.WaitlistInformationalPanelKt$waitlistInformationalPanel$1$5$2.invoke(WaitlistInformationalPanel.kt:48)
at com.intellij.ui.dsl.builder.impl.CellImpl.applyToComponent(CellImpl.kt:103)
at com.intellij.ui.dsl.builder.impl.CellImpl.applyToComponent(CellImpl.kt:29)
at com.github.copilot.chat.waitlist.WaitlistInformationalPanelKt$waitlistInformationalPanel$1$5.invoke(WaitlistInformationalPanel.kt:48)
at com.github.copilot.chat.waitlist.WaitlistInformationalPanelKt$waitlistInformationalPanel$1$5.invoke(WaitlistInformationalPanel.kt:44)
at com.intellij.ui.dsl.builder.impl.PanelImpl.row(PanelImpl.kt:57)
at com.intellij.ui.dsl.builder.impl.PanelImpl.row(PanelImpl.kt:19)
at com.intellij.ui.dsl.builder.Panel.row$default(Panel.kt:75)
at com.github.copilot.chat.waitlist.WaitlistInformationalPanelKt$waitlistInformationalPanel$1.invoke(WaitlistInformationalPanel.kt:44)
at com.github.copilot.chat.waitlist.WaitlistInformationalPanelKt$waitlistInformationalPanel$1.invoke(WaitlistInformationalPanel.kt:18)
at com.intellij.ui.dsl.builder.BuilderKt.panel(builder.kt:19)
at com.github.copilot.chat.waitlist.WaitlistInformationalPanelKt.waitlistInformationalPanel(WaitlistInformationalPanel.kt:18)
at com.github.copilot.chat.window.CopilotChatToolWindow.showCopilotChat(CopilotChatToolWindow.kt:132)
at com.github.copilot.chat.window.CopilotChatToolWindow.updateState(CopilotChatToolWindow.kt:116)
at com.github.copilot.chat.window.CopilotChatToolWindow.(CopilotChatToolWindow.kt:65)
at com.github.copilot.chat.window.CopilotChatToolWindowFactory.createToolWindowContent(CopilotChatToolWindowFactory.kt:20)
at com.intellij.openapi.wm.impl.ToolWindowImpl.createContentIfNeeded(ToolWindowImpl.kt:594)
at com.intellij.openapi.wm.impl.ToolWindowImpl.scheduleContentInitializationIfNeeded$intellij_platform_ide_impl(ToolWindowImpl.kt:573)
at com.intellij.openapi.wm.impl.ToolWindowManagerImpl.doShowWindow(ToolWindowManagerImpl.kt:1035)
at com.intellij.openapi.wm.impl.ToolWindowManagerImpl.setLayout(ToolWindowManagerImpl.kt:1454)
at com.jetbrains.thinclient.toolWindow.generic.FrontendToolWindowHost$initModel$1$1.invoke(FrontendToolWindowHost.kt:104)
at com.jetbrains.thinclient.toolWindow.generic.FrontendToolWindowHost$initModel$1$1.invoke(FrontendToolWindowHost.kt:103)
at com.jetbrains.rd.util.reactive.SourceExKt$adviseOnce$1$1.invoke(SourceEx.kt:22)
at com.jetbrains.rd.util.reactive.SourceExKt$adviseOnce$1$1.invoke(SourceEx.kt:20)
at com.jetbrains.rd.util.reactive.Signal.fire(Signal.kt:32)
at com.jetbrains.rd.framework.impl.RdSignal$onWireReceived$2.invoke(RdSignal.kt:32)
at com.jetbrains.rd.framework.impl.RdSignal$onWireReceived$2.invoke(RdSignal.kt:31)
at com.jetbrains.rd.platform.codeWithMe.e.r.t.e(t.java:53)
at com.jetbrains.rd.platform.codeWithMe.e.r.t.invoke(t.java:51)
at com.jetbrains.rd.framework.MessageBroker$RdWireableDispatchHelper$doDispatch$2.invoke(MessageBroker.kt:122)
at com.jetbrains.rd.framework.MessageBroker$RdWireableDispatchHelper$doDispatch$2.invoke(MessageBroker.kt:115)
at com.jetbrains.rdclient.protocol.RdDispatcher.flushAll(RdDispatcher.kt:109)
at com.jetbrains.rdclient.protocol.RdDispatcher.flushAllRunnable$lambda$0(RdDispatcher.kt:33)
at com.intellij.openapi.application.TransactionGuardImpl.runWithWritingAllowed(TransactionGuardImpl.java:209)
at com.intellij.openapi.application.TransactionGuardImpl.access$100(TransactionGuardImpl.java:22)
at com.intellij.openapi.application.TransactionGuardImpl$1.run(TransactionGuardImpl.java:191)
at com.intellij.openapi.application.impl.ApplicationImpl.runIntendedWriteActionOnCurrentThread(ApplicationImpl.java:843)
at com.intellij.openapi.application.impl.ApplicationImpl$4.run(ApplicationImpl.java:463)
at com.intellij.openapi.application.impl.RwLockHolder.runWithEnabledImplicitRead(RwLockHolder.kt:75)
at com.intellij.openapi.application.impl.RwLockHolder.runWithImplicitRead(RwLockHolder.kt:67)
at com.intellij.openapi.application.impl.ApplicationImpl.runWithImplicitRead(ApplicationImpl.java:1430)
at com.intellij.openapi.application.impl.FlushQueue.doRun(FlushQueue.java:82)
at com.intellij.openapi.application.impl.FlushQueue.runNextEvent(FlushQueue.java:124)
at com.intellij.openapi.application.impl.FlushQueue.flushNow(FlushQueue.java:44)
at java.desktop/java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:318)
at java.desktop/java.awt.EventQueue.dispatchEventImpl(EventQueue.java:792)
at java.desktop/java.awt.EventQueue$3.run(EventQueue.java:739)
at java.desktop/java.awt.EventQueue$3.run(EventQueue.java:733)
at java.base/java.security.AccessController.doPrivileged(AccessController.java:399)
at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:86)
at java.desktop/java.awt.EventQueue.dispatchEvent(EventQueue.java:761)
at com.intellij.ide.IdeEventQueue.defaultDispatchEvent(IdeEventQueue.kt:695)
at com.intellij.ide.IdeEventQueue._dispatchEvent$lambda$12(IdeEventQueue.kt:589)
at com.intellij.openapi.application.impl.RwLockHolder.runWithoutImplicitRead(RwLockHolder.kt:44)
at com.intellij.ide.IdeEventQueue._dispatchEvent(IdeEventQueue.kt:589)
at com.intellij.ide.IdeEventQueue.access$_dispatchEvent(IdeEventQueue.kt:72)
at com.intellij.ide.IdeEventQueue$dispatchEvent$processEventRunnable$1$1$1.compute(IdeEventQueue.kt:355)
at com.intellij.ide.IdeEventQueue$dispatchEvent$processEventRunnable$1$1$1.compute(IdeEventQueue.kt:354)
at com.intellij.openapi.progress.impl.CoreProgressManager.computePrioritized(CoreProgressManager.java:793)
at com.intellij.ide.IdeEventQueue$dispatchEvent$processEventRunnable$1$1.invoke(IdeEventQueue.kt:354)
at com.intellij.ide.IdeEventQueue$dispatchEvent$processEventRunnable$1$1.invoke(IdeEventQueue.kt:349)
at com.intellij.ide.IdeEventQueueKt.performActivity$lambda$1(IdeEventQueue.kt:1014)
at com.intellij.openapi.application.TransactionGuardImpl.performActivity(TransactionGuardImpl.java:106)
at com.intellij.ide.IdeEventQueueKt.performActivity(IdeEventQueue.kt:1014)
at com.intellij.ide.IdeEventQueue.dispatchEvent$lambda$7(IdeEventQueue.kt:349)
at com.intellij.openapi.application.impl.ApplicationImpl.runIntendedWriteActionOnCurrentThread(ApplicationImpl.java:848)
at com.intellij.ide.IdeEventQueue.dispatchEvent(IdeEventQueue.kt:391)
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)
Caused by: java.lang.ClassNotFoundException: com.intellij.collaboration.ui.CollaborationToolsUIUtil PluginClassLoader(plugin=PluginDescriptor(name=GitHub Copilot, id=com.github.copilot, descriptorPath=plugin.xml, path=~\AppData\Roaming\JetBrains\JetBrainsClient233.11799.259\plugins\github-copilot-intellij, version=1.4.8.4294-nightly, package=null, isBundled=false), packagePrefix=null, state=active)
at com.intellij.ide.plugins.cl.PluginClassLoader.loadClass(PluginClassLoader.kt:156)
at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:525)
... 74 more

Also here are some warnings I found in idea.log:

2024-01-15 15:23:31,644 [ 522161] INFO - #c.j.r.p.c.e.r.I - Unable to validate session tokens. Session token data is not provided. Skip.
2024-01-15 15:23:31,645 [ 522162] INFO - #c.j.r.q.ed - Connection with client ...
WARN - #c.j.r.p.c.e.d - DeferredCoroutine was cancelled
kotlinx.coroutines.JobCancellationException: DeferredCoroutine was cancelled; job=DeferredCoroutine{Cancelling

2024-01-15 15:23:34,550 [ 525067] SEVERE - #c.j.r.l.s.LuxHostService - Attempt to bind already bound adapter LuxPanelAdapter(bound, id=12, window=dialog7)
java.lang.Throwable: Attempt to bind already bound adapter LuxPanelAdapter(bound, id=12, window=dialog7)

at com.intellij.openapi.diagnostic.Logger.error(Logger.java:376)
at com.jetbrains.rdserver.lux.services.LuxHostService.bindIfPossible(LuxHostService.kt:198)
at com.jetbrains.rdserver.lux.services.LuxHostService.attachControllerConnection$intellij_cwm_host(LuxHostService.kt:94)
at com.jetbrains.rdserver.lux.awt.graphics.RemoteGraphicsEnvironment$Companion$handleNewSession$1.invoke(RemoteGraphicsEnvironment.kt:34)
at com.jetbrains.rdserver.lux.awt.graphics.RemoteGraphicsEnvironment$Companion$handleNewSession$1.invoke(RemoteGraphicsEnvironment.kt:26)
at com.jetbrains.rd.util.reactive.Signal.fire(Signal.kt:32)
at com.jetbrains.rd.framework.impl.RdSignal$onWireReceived$2.invoke(RdSignal.kt:32)
at com.jetbrains.rd.framework.impl.RdSignal$onWireReceived$2.invoke(RdSignal.kt:31)
at com.jetbrains.rd.platform.codeWithMe.e.r.D.e(D.java:53)
at com.jetbrains.rd.platform.codeWithMe.e.r.D.invoke(D.java:51)
at com.jetbrains.rd.framework.MessageBroker$RdWireableDispatchHelper$doDispatch$2.invoke(MessageBroker.kt:122)
at com.jetbrains.rd.framework.MessageBroker$RdWireableDispatchHelper$doDispatch$2.invoke(MessageBroker.kt:115)
at com.jetbrains.rd.platform.protocol.EdtScheduler.queue$lambda$0(EdtScheduler.kt:60)
at com.intellij.openapi.application.TransactionGuardImpl$1.run(TransactionGuardImpl.java:194)
at com.intellij.openapi.application.impl.ApplicationImpl.runIntendedWriteActionOnCurrentThread(ApplicationImpl.java:843)
at com.intellij.openapi.application.impl.ApplicationImpl$4.run(ApplicationImpl.java:463)
at com.intellij.openapi.application.impl.RwLockHolder.runWithEnabledImplicitRead(RwLockHolder.kt:75)
at com.intellij.openapi.application.impl.RwLockHolder.runWithImplicitRead(RwLockHolder.kt:67)
at com.intellij.openapi.application.impl.ApplicationImpl.runWithImplicitRead(ApplicationImpl.java:1430)
at com.intellij.openapi.application.impl.FlushQueue.doRun(FlushQueue.java:82)
at com.intellij.openapi.application.impl.FlushQueue.runNextEvent(FlushQueue.java:124)
at com.intellij.openapi.application.impl.FlushQueue.flushNow(FlushQueue.java:44)
at java.desktop/java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:318)
at java.desktop/java.awt.EventQueue.dispatchEventImpl(EventQueue.java:792)
at java.desktop/java.awt.EventQueue$3.run(EventQueue.java:739)
at java.desktop/java.awt.EventQueue$3.run(EventQueue.java:733)
at java.base/java.security.AccessController.doPrivileged(AccessController.java:399)
at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:86)
at java.desktop/java.awt.EventQueue.dispatchEvent(EventQueue.java:761)
at com.intellij.ide.IdeEventQueue.defaultDispatchEvent(IdeEventQueue.kt:695)
at com.intellij.ide.IdeEventQueue._dispatchEvent$lambda$12(IdeEventQueue.kt:589)
at com.intellij.openapi.application.impl.RwLockHolder.runWithoutImplicitRead(RwLockHolder.kt:44)
at com.intellij.ide.IdeEventQueue._dispatchEvent(IdeEventQueue.kt:589)
at com.intellij.ide.IdeEventQueue.access$_dispatchEvent(IdeEventQueue.kt:72)
at com.intellij.ide.IdeEventQueue$dispatchEvent$processEventRunnable$1$1$1.compute(IdeEventQueue.kt:355)
at com.intellij.ide.IdeEventQueue$dispatchEvent$processEventRunnable$1$1$1.compute(IdeEventQueue.kt:354)
at com.intellij.openapi.progress.impl.CoreProgressManager.computePrioritized(CoreProgressManager.java:793)
at com.intellij.ide.IdeEventQueue$dispatchEvent$processEventRunnable$1$1.invoke(IdeEventQueue.kt:354)
at com.intellij.ide.IdeEventQueue$dispatchEvent$processEventRunnable$1$1.invoke(IdeEventQueue.kt:349)
at com.intellij.ide.IdeEventQueueKt.performActivity$lambda$1(IdeEventQueue.kt:1014)
at com.intellij.openapi.application.TransactionGuardImpl.performActivity(TransactionGuardImpl.java:106)
at com.intellij.ide.IdeEventQueueKt.performActivity(IdeEventQueue.kt:1014)
at com.intellij.ide.IdeEventQueue.dispatchEvent$lambda$7(IdeEventQueue.kt:349)
at com.intellij.openapi.application.impl.ApplicationImpl.runIntendedWriteActionOnCurrentThread(ApplicationImpl.java:843)
at com.intellij.ide.IdeEventQueue.dispatchEvent(IdeEventQueue.kt:391)
at com.intellij.ide.IdeEventQueue.doPostEvent$lambda$22(IdeEventQueue.kt:846)
at java.desktop/java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:318)
at java.desktop/java.awt.EventQueue.dispatchEventImpl(EventQueue.java:792)
at java.desktop/java.awt.EventQueue$3.run(EventQueue.java:739)
at java.desktop/java.awt.EventQueue$3.run(EventQueue.java:733)
at java.base/java.security.AccessController.doPrivileged(AccessController.java:399)
at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:86)
at java.desktop/java.awt.EventQueue.dispatchEvent(EventQueue.java:761)
at com.intellij.ide.IdeEventQueue.defaultDispatchEvent(IdeEventQueue.kt:695)
at com.intellij.ide.IdeEventQueue._dispatchEvent$lambda$12(IdeEventQueue.kt:589)
at com.intellij.openapi.application.impl.RwLockHolder.runWithoutImplicitRead(RwLockHolder.kt:44)
at com.intellij.ide.IdeEventQueue._dispatchEvent(IdeEventQueue.kt:589)
at com.intellij.ide.IdeEventQueue.access$_dispatchEvent(IdeEventQueue.kt:72)
at com.intellij.ide.IdeEventQueue$dispatchEvent$processEventRunnable$1$1$1.compute(IdeEventQueue.kt:355)
at com.intellij.ide.IdeEventQueue$dispatchEvent$processEventRunnable$1$1$1.compute(IdeEventQueue.kt:354)
at com.intellij.openapi.progress.impl.CoreProgressManager.computePrioritized(CoreProgressManager.java:793)
at com.intellij.ide.IdeEventQueue$dispatchEvent$processEventRunnable$1$1.invoke(IdeEventQueue.kt:354)
at com.intellij.ide.IdeEventQueue$dispatchEvent$processEventRunnable$1$1.invoke(IdeEventQueue.kt:349)
at com.intellij.ide.IdeEventQueueKt.performActivity$lambda$1(IdeEventQueue.kt:1014)
at com.intellij.openapi.application.TransactionGuardImpl.performActivity(TransactionGuardImpl.java:106)
at com.intellij.ide.IdeEventQueueKt.performActivity(IdeEventQueue.kt:1014)
at com.intellij.ide.IdeEventQueue.dispatchEvent$lambda$7(IdeEventQueue.kt:349)
at com.intellij.openapi.application.impl.ApplicationImpl.runIntendedWriteActionOnCurrentThread(ApplicationImpl.java:848)
at com.intellij.ide.IdeEventQueue.dispatchEvent(IdeEventQueue.kt:391)
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)

2024-01-15 15:23:34,553 [ 525070] SEVERE - #c.j.r.l.a.LuxComponentAdapter - Peer is already bound
java.lang.Throwable: Peer is already bound

[aram10]

Any updates on this? I have the same issue.

[delphikettle]

Try installing it as Client-side plugin, not Host-side. I had the same problem before, now it works for me

[forest-spells]

Then you didn't have the same problem before.