Cannot use plugin

[s-simoncelli]

What happened?

Hi,

as soon as I load the plugin, it keep crashing with the error reported below

Steps to reproduce

Install the plugin with the following options:

I'm using PyCharm 2025.1.1.1

Relevant log output or stack trace

java.lang.Throwable: insyncwithfoo.ryecharm.ruff.lsp.RuffServerSupportProvider is not loaded
	at com.intellij.openapi.diagnostic.Logger.error(Logger.java:375)
	at com.intellij.platform.lsp.impl.LspServerManagerImpl.startServersIfNeeded(LspServerManagerImpl.kt:65)
	at com.intellij.platform.lsp.impl.LspServerManagerImpl.stopAndRestartIfNeeded(LspServerManagerImpl.kt:186)
	at insyncwithfoo.ryecharm.configurations.ruff.ConfigurablesKt.toggleServers(Configurables.kt:65)
	at insyncwithfoo.ryecharm.configurations.ruff.ConfigurablesKt.access$toggleServers(Configurables.kt:1)
	at insyncwithfoo.ryecharm.configurations.ruff.RuffProjectConfigurable.afterApply(Configurables.kt:59)
	at insyncwithfoo.ryecharm.configurations.PanelBasedConfigurable.apply(Configurables.kt:66)
	at com.intellij.openapi.options.ex.ConfigurableWrapper.apply(ConfigurableWrapper.java:190)
	at com.intellij.openapi.options.newEditor.ConfigurableEditor.apply(ConfigurableEditor.java:314)
	at com.intellij.openapi.options.newEditor.SettingsEditor$7.apply(SettingsEditor.java:247)
	at com.intellij.openapi.options.newEditor.SettingsEditor.apply(SettingsEditor.java:515)
	at com.intellij.openapi.options.newEditor.SettingsDialog.applyAndClose(SettingsDialog.java:259)
	at com.intellij.openapi.options.newEditor.SettingsDialog.doOKAction(SettingsDialog.java:247)
	at com.intellij.openapi.ui.DialogWrapper$OkAction.doAction(DialogWrapper.java:2011)
	at com.intellij.openapi.ui.DialogWrapper$DialogWrapperAction.actionPerformed(DialogWrapper.java:1962)
	at java.desktop/javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1972)
	at java.desktop/javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2314)
	at java.desktop/javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:407)
	at java.desktop/javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:262)
	at java.desktop/javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:279)
	at java.desktop/java.awt.Component.processMouseEvent(Component.java:6673)
	at java.desktop/javax.swing.JComponent.processMouseEvent(JComponent.java:3394)
	at java.desktop/java.awt.Component.processEvent(Component.java:6438)
	at java.desktop/java.awt.Container.processEvent(Container.java:2266)
	at java.desktop/java.awt.Component.dispatchEventImpl(Component.java:5043)
	at java.desktop/java.awt.Container.dispatchEventImpl(Container.java:2324)
	at java.desktop/java.awt.Component.dispatchEvent(Component.java:4871)
	at java.desktop/java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4963)
	at java.desktop/java.awt.LightweightDispatcher.processMouseEvent(Container.java:4577)
	at java.desktop/java.awt.LightweightDispatcher.dispatchEvent(Container.java:4518)
	at java.desktop/java.awt.Container.dispatchEventImpl(Container.java:2310)
	at java.desktop/java.awt.Window.dispatchEventImpl(Window.java:2810)
	at java.desktop/java.awt.Component.dispatchEvent(Component.java:4871)
	at java.desktop/java.awt.EventQueue.dispatchEventImpl(EventQueue.java:783)
	at java.desktop/java.awt.EventQueue$4.run(EventQueue.java:728)
	at java.desktop/java.awt.EventQueue$4.run(EventQueue.java:722)
	at java.base/java.security.AccessController.doPrivileged(AccessController.java:400)
	at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:87)
	at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:98)
	at java.desktop/java.awt.EventQueue$5.run(EventQueue.java:755)
	at java.desktop/java.awt.EventQueue$5.run(EventQueue.java:753)
	at java.base/java.security.AccessController.doPrivileged(AccessController.java:400)
	at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:87)
	at java.desktop/java.awt.EventQueue.dispatchEvent(EventQueue.java:752)
	at com.intellij.ide.IdeEventQueue.defaultDispatchEvent(IdeEventQueue.kt:585)
	at com.intellij.ide.IdeEventQueue.dispatchMouseEvent(IdeEventQueue.kt:530)
	at com.intellij.ide.IdeEventQueue._dispatchEvent$lambda$16(IdeEventQueue.kt:473)
	at com.intellij.openapi.application.impl.AnyThreadWriteThreadingSupport.runWriteIntentReadAction$lambda$6(AnyThreadWriteThreadingSupport.kt:274)
	at com.intellij.openapi.application.impl.AnyThreadWriteThreadingSupport.runWithTemporaryThreadLocal(AnyThreadWriteThreadingSupport.kt:204)
	at com.intellij.openapi.application.impl.AnyThreadWriteThreadingSupport.runWriteIntentReadAction(AnyThreadWriteThreadingSupport.kt:274)
	at com.intellij.openapi.application.impl.AnyThreadWriteThreadingSupport.runPreventiveWriteIntentReadAction(AnyThreadWriteThreadingSupport.kt:218)
	at com.intellij.ide.IdeEventQueue._dispatchEvent(IdeEventQueue.kt:473)
	at com.intellij.ide.IdeEventQueue.dispatchEvent$lambda$12$lambda$11$lambda$10$lambda$9(IdeEventQueue.kt:307)
	at com.intellij.openapi.progress.impl.CoreProgressManager.computePrioritized(CoreProgressManager.java:864)
	at com.intellij.ide.IdeEventQueue.dispatchEvent$lambda$12$lambda$11$lambda$10(IdeEventQueue.kt:306)
	at com.intellij.ide.IdeEventQueueKt.performActivity$lambda$3(IdeEventQueue.kt:958)
	at com.intellij.openapi.application.TransactionGuardImpl.performActivity(TransactionGuardImpl.java:109)
	at com.intellij.ide.IdeEventQueueKt.performActivity(IdeEventQueue.kt:958)
	at com.intellij.ide.IdeEventQueue.dispatchEvent$lambda$12(IdeEventQueue.kt:301)
	at com.intellij.ide.IdeEventQueue.dispatchEvent(IdeEventQueue.kt:341)
	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.pumpEventsForFilter(EventDispatchThread.java:121)
	at java.desktop/java.awt.WaitDispatchSupport$2.run(WaitDispatchSupport.java:191)
	at java.desktop/java.awt.WaitDispatchSupport$4.run(WaitDispatchSupport.java:236)
	at java.desktop/java.awt.WaitDispatchSupport$4.run(WaitDispatchSupport.java:234)
	at java.base/java.security.AccessController.doPrivileged(AccessController.java:319)
	at java.desktop/java.awt.WaitDispatchSupport.enter(WaitDispatchSupport.java:234)
	at java.desktop/java.awt.Dialog.show(Dialog.java:1079)
	at com.intellij.openapi.ui.impl.DialogWrapperPeerImpl$MyDialog.show(DialogWrapperPeerImpl.java:871)
	at com.intellij.openapi.ui.impl.DialogWrapperPeerImpl.show(DialogWrapperPeerImpl.java:458)
	at com.intellij.openapi.ui.DialogWrapper.doShow(DialogWrapper.java:1815)
	at com.intellij.openapi.ui.DialogWrapper.show(DialogWrapper.java:1764)
	at com.intellij.ide.actions.ShowSettingsUtilImpl$Companion.showInternal(ShowSettingsUtilImpl.kt:73)
	at com.intellij.ide.actions.ShowSettingsUtilImpl$Companion.showSettings(ShowSettingsUtilImpl.kt:56)
	at com.intellij.ide.actions.ShowSettingsUtilImpl.showSettingsDialog(ShowSettingsUtilImpl.kt:129)
	at com.intellij.ide.actions.ShowSettingsAction.perform(ShowSettingsAction.java:61)
	at com.intellij.ide.actions.ShowSettingsAction.actionPerformed(ShowSettingsAction.java:48)
	at com.intellij.openapi.actionSystem.ex.ActionUtil.doPerformActionOrShowPopup(ActionUtil.kt:383)
	at com.intellij.openapi.actionSystem.ex.ActionUtil.performActionDumbAwareWithCallbacks$lambda$7(ActionUtil.kt:353)
	at com.intellij.openapi.actionSystem.impl.ActionManagerImpl.performWithActionCallbacks(ActionManagerImpl.kt:1167)
	at com.intellij.openapi.actionSystem.ex.ActionUtil.performActionDumbAwareWithCallbacks(ActionUtil.kt:352)
	at com.intellij.ui.popup.ActionPopupStep.performActionItem(ActionPopupStep.java:300)
	at com.intellij.ui.popup.ActionPopupStep.lambda$onChosen$3(ActionPopupStep.java:268)
	at com.intellij.ui.popup.AbstractPopup.lambda$dispose$21(AbstractPopup.java:2011)
	at com.intellij.openapi.application.WriteIntentReadAction.lambda$run$0(WriteIntentReadAction.java:24)
	at com.intellij.openapi.application.impl.AnyThreadWriteThreadingSupport.runWriteIntentReadAction$lambda$6(AnyThreadWriteThreadingSupport.kt:274)
	at com.intellij.openapi.application.impl.AnyThreadWriteThreadingSupport.runWithTemporaryThreadLocal(AnyThreadWriteThreadingSupport.kt:204)
	at com.intellij.openapi.application.impl.AnyThreadWriteThreadingSupport.runWriteIntentReadAction(AnyThreadWriteThreadingSupport.kt:274)
	at com.intellij.openapi.application.impl.AnyThreadWriteThreadingSupport.runWriteIntentReadAction(AnyThreadWriteThreadingSupport.kt:222)
	at com.intellij.openapi.application.impl.ApplicationImpl.runWriteIntentReadAction(ApplicationImpl.java:1009)
	at com.intellij.openapi.application.WriteIntentReadAction.compute(WriteIntentReadAction.java:55)
	at com.intellij.openapi.application.WriteIntentReadAction.run(WriteIntentReadAction.java:23)
	at com.intellij.openapi.wm.impl.FocusManagerImpl.lambda$doWhenFocusSettlesDown$4(FocusManagerImpl.java:178)
	at com.intellij.util.ui.EdtInvocationManager.invokeLaterIfNeeded(EdtInvocationManager.java:32)
	at com.intellij.openapi.wm.impl.FocusManagerImpl.doWhenFocusSettlesDown(FocusManagerImpl.java:173)
	at com.intellij.openapi.wm.impl.FocusManagerImpl.doWhenFocusSettlesDown(FocusManagerImpl.java:165)
	at com.intellij.ui.popup.AbstractPopup.dispose(AbstractPopup.java:2009)
	at com.intellij.ui.popup.WizardPopup.dispose(WizardPopup.java:175)
	at com.intellij.ui.popup.list.ListPopupImpl.dispose(ListPopupImpl.java:407)
	at com.intellij.ui.popup.PopupFactoryImpl$ActionGroupPopup.dispose(PopupFactoryImpl.java:324)
	at com.intellij.openapi.util.ObjectTree.runWithTrace(ObjectTree.java:132)
	at com.intellij.openapi.util.ObjectTree.executeAll(ObjectTree.java:164)
	at com.intellij.openapi.util.Disposer.dispose(Disposer.java:205)
	at com.intellij.openapi.util.Disposer.dispose(Disposer.java:193)
	at com.intellij.ui.popup.WizardPopup.disposeAllParents(WizardPopup.java:303)
	at com.intellij.ui.popup.list.ListPopupImpl.disposePopup(ListPopupImpl.java:539)
	at com.intellij.ui.popup.list.ListPopupImpl.handleNextStep(ListPopupImpl.java:563)
	at com.intellij.ui.popup.list.ListPopupImpl._handleSelect(ListPopupImpl.java:524)
	at com.intellij.ui.popup.list.ListPopupImpl.handleSelect(ListPopupImpl.java:449)
	at com.intellij.ui.popup.PopupFactoryImpl$ActionGroupPopup.handleSelect(PopupFactoryImpl.java:341)
	at com.intellij.ui.popup.list.ListPopupImpl$MyMouseListener.mouseReleased(ListPopupImpl.java:789)
	at java.desktop/java.awt.AWTEventMulticaster.mouseReleased(AWTEventMulticaster.java:298)
	at java.desktop/java.awt.Component.processMouseEvent(Component.java:6673)
	at java.desktop/javax.swing.JComponent.processMouseEvent(JComponent.java:3394)
	at com.intellij.ui.popup.list.ListPopupImpl$MyList.processMouseEvent(ListPopupImpl.java:854)
	at java.desktop/java.awt.Component.processEvent(Component.java:6438)
	at java.desktop/java.awt.Container.processEvent(Container.java:2266)
	at java.desktop/java.awt.Component.dispatchEventImpl(Component.java:5043)
	at java.desktop/java.awt.Container.dispatchEventImpl(Container.java:2324)
	at java.desktop/java.awt.Component.dispatchEvent(Component.java:4871)
	at java.desktop/java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4963)
	at java.desktop/java.awt.LightweightDispatcher.processMouseEvent(Container.java:4577)
	at java.desktop/java.awt.LightweightDispatcher.dispatchEvent(Container.java:4518)
	at java.desktop/java.awt.Container.dispatchEventImpl(Container.java:2310)
	at java.desktop/java.awt.Window.dispatchEventImpl(Window.java:2810)
	at java.desktop/java.awt.Component.dispatchEvent(Component.java:4871)
	at java.desktop/java.awt.EventQueue.dispatchEventImpl(EventQueue.java:783)
	at java.desktop/java.awt.EventQueue$4.run(EventQueue.java:728)
	at java.desktop/java.awt.EventQueue$4.run(EventQueue.java:722)
	at java.base/java.security.AccessController.doPrivileged(AccessController.java:400)
	at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:87)
	at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:98)
	at java.desktop/java.awt.EventQueue$5.run(EventQueue.java:755)
	at java.desktop/java.awt.EventQueue$5.run(EventQueue.java:753)
	at java.base/java.security.AccessController.doPrivileged(AccessController.java:400)
	at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:87)
	at java.desktop/java.awt.EventQueue.dispatchEvent(EventQueue.java:752)
	at com.intellij.ide.IdeEventQueue.defaultDispatchEvent(IdeEventQueue.kt:585)
	at com.intellij.ide.IdeEventQueue.dispatchMouseEvent(IdeEventQueue.kt:530)
	at com.intellij.ide.IdeEventQueue._dispatchEvent$lambda$16(IdeEventQueue.kt:473)
	at com.intellij.openapi.application.impl.AnyThreadWriteThreadingSupport.runWriteIntentReadAction$lambda$6(AnyThreadWriteThreadingSupport.kt:274)
	at com.intellij.openapi.application.impl.AnyThreadWriteThreadingSupport.runWithTemporaryThreadLocal(AnyThreadWriteThreadingSupport.kt:204)
	at com.intellij.openapi.application.impl.AnyThreadWriteThreadingSupport.runWriteIntentReadAction(AnyThreadWriteThreadingSupport.kt:274)
	at com.intellij.openapi.application.impl.AnyThreadWriteThreadingSupport.runPreventiveWriteIntentReadAction(AnyThreadWriteThreadingSupport.kt:218)
	at com.intellij.ide.IdeEventQueue._dispatchEvent(IdeEventQueue.kt:473)
	at com.intellij.ide.IdeEventQueue.dispatchEvent$lambda$12$lambda$11$lambda$10$lambda$9(IdeEventQueue.kt:307)
	at com.intellij.openapi.progress.impl.CoreProgressManager.computePrioritized(CoreProgressManager.java:864)
	at com.intellij.ide.IdeEventQueue.dispatchEvent$lambda$12$lambda$11$lambda$10(IdeEventQueue.kt:306)
	at com.intellij.ide.IdeEventQueueKt.performActivity$lambda$3(IdeEventQueue.kt:958)
	at com.intellij.openapi.application.TransactionGuardImpl.performActivity(TransactionGuardImpl.java:117)
	at com.intellij.ide.IdeEventQueueKt.performActivity(IdeEventQueue.kt:958)
	at com.intellij.ide.IdeEventQueue.dispatchEvent$lambda$12(IdeEventQueue.kt:301)
	at com.intellij.ide.IdeEventQueue.dispatchEvent(IdeEventQueue.kt:341)
	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)

Operating system

Windows

[InSyncWithFoo]

Are you using the Unified PyCharm/PyCharm Professional or PyCharm Community? If the former, then this is a known limitation: You can't use LSP4IJ with Unified/Professional. Does RyeCharm work if you change the running mode to Command line or Native LSP client and restart the IDE?

The problem aside, I would also recommend updating both PyCharm and RyeCharm to the latest versions (2025.2.4 and 0.1.0-alpha-19 at the time of writing). While I try my best to address use cases and has, at times, provided custom builds on request, I can't maintain several release branches and thus won't backport patches.

[angelozerr]

@InSyncWithFoo I am waiting for some months to wait for user migrate to unified and after that I will remove lsp4j dependencies to use LSP4IJ from JetBrains platform to avoid having this issue

[InSyncWithFoo]

I'm closing this issue due to lack of response. Feel free to comment here if the solution above doesn't work for you.

[s-simoncelli]

Apologies for the late reply. Yes I'm using the Unified version of PyCharm. The command line is the only working option but I'll try to get PyCharm updated as soon as my IT department allows.

[angelozerr]

@s-simoncelli if you have installed LSP4IJ, could you try to install the build zip from the PR redhat-developer/lsp4ij#1379 by following instruction at https://github.com/redhat-developer/lsp4ij?tab=readme-ov-file#testing-the-ci-builds

[InSyncWithFoo]

@s-simoncelli If you uninstall LSP4IJ, you should be able to use the Native client mode. The above advice by @angelozerr only works for 2025.2 and later.