Navigate To Handler doesn't work

[mefko54]

rider version:
JetBrains Rider 2025.3
Build #RD-253.28294.88, built on November 10, 2025
Source revision: 16612b3012700

exception:

com.intellij.diagnostic.PluginException: ca.nosuchcompany.rider.plugins.mediatr.GoToHandlerAction PluginClassLoader(plugin=PluginMainDescriptor(name=Mediator Extensions, id=ca.nosuchcompany.rider.plugins.mediatr, version=25.11.08101, isBundled=false, path=~\AppData\Roaming\JetBrains\Rider2025.3\plugins\mediator), packagePrefix=null, state=active, parents=ContentModuleDescriptor(id=intellij.platform.vcs.log.graph) <- PluginMainDescriptor(name=IDEA CORE, id=com.intellij, version=253.28294.88, isBundled=true, path=C:\Program Files\JetBrains\JetBrains Rider 2023.1.2\lib), ContentModuleDescriptor(id=intellij.platform.vcs.log) <- PluginMainDescriptor(name=IDEA CORE, id=com.intellij, version=253.28294.88, isBundled=true, path=C:\Program Files\JetBrains\JetBrains Rider 2023.1.2\lib), ContentModuleDescriptor(id=intellij.platform.vcs.dvcs) <- PluginMainDescriptor(name=IDEA CORE, id=com.intellij, version=253.28294.88, isBundled=true, path=C:\Program Files\JetBrains\JetBrains Rider 2023.1.2\lib), ContentModuleDescriptor(id=intellij.platform.vcs.impl) <- PluginMainDescriptor(name=IDEA CORE, id=com.intellij, version=253.28294.88, isBundled=true, path=C:\Program Files\JetBrains\JetBrains Rider 2023.1.2\lib), ContentModuleDescriptor(id=intellij.platform.vcs.log.impl) <- PluginMainDescriptor(name=IDEA CORE, id=com.intellij, version=253.28294.88, isBundled=true, path=C:\Program Files\JetBrains\JetBrains Rider 2023.1.2\lib), ContentModuleDescriptor(id=intellij.platform.vcs.dvcs.impl) <- PluginMainDescriptor(name=IDEA CORE, id=com.intellij, version=253.28294.88, isBundled=true, path=C:\Program Files\JetBrains\JetBrains Rider 2023.1.2\lib), ContentModuleDescriptor(id=intellij.platform.collaborationTools) <- PluginMainDescriptor(name=IDEA CORE, id=com.intellij, version=253.28294.88, isBundled=true, path=C:\Program Files\JetBrains\JetBrains Rider 2023.1.2\lib), ContentModuleDescriptor(id=intellij.rider) <- PluginMainDescriptor(name=IDEA CORE, id=com.intellij, version=253.28294.88, isBundled=true, path=C:\Program Files\JetBrains\JetBrains Rider 2023.1.2\lib), ) [Plugin: ca.nosuchcompany.rider.plugins.mediatr]
	at com.intellij.serviceContainer.ComponentManagerImpl.instantiateClass(ComponentManagerImpl.kt:925)
	at com.intellij.openapi.actionSystem.impl.ActionManagerImplKt.instantiate(ActionManagerImpl.kt:1450)
	at com.intellij.openapi.actionSystem.impl.ActionManagerImplKt.convertStub(ActionManagerImpl.kt:1696)
	at com.intellij.openapi.actionSystem.impl.ActionManagerImplKt.getAction(ActionManagerImpl.kt:2193)
	at com.intellij.openapi.actionSystem.impl.ActionManagerImplKt.access$getAction(ActionManagerImpl.kt:1)
	at com.intellij.openapi.actionSystem.impl.ActionManagerImpl.getAction(ActionManagerImpl.kt:397)
	at com.intellij.openapi.actionSystem.DefaultActionGroup.getChildren(DefaultActionGroup.java:397)
	at com.intellij.ide.util.gotoByName.GotoActionModel.collectActions(GotoActionModel.java:421)
	at com.intellij.ide.util.gotoByName.GotoActionModel.collectActions(GotoActionModel.java:433)
	at com.intellij.ide.util.gotoByName.GotoActionModel.collectActions(GotoActionModel.java:433)
	at com.intellij.ide.util.gotoByName.GotoActionModel.buildGroupMappings(GotoActionModel.java:118)
	at com.intellij.ide.actions.searcheverywhere.ActionSearchEverywhereContributor$fetchWeightedElements$1$1.invokeSuspend(ActionSearchEverywhereContributor.kt:111)
	at kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith(ContinuationImpl.kt:34)
	at kotlinx.coroutines.DispatchedTask.run(DispatchedTask.kt:100)
	at kotlinx.coroutines.EventLoopImplBase.processNextEvent(EventLoop.common.kt:263)
	at kotlinx.coroutines.BlockingCoroutine.joinBlocking(Builders.kt:112)
	at kotlinx.coroutines.BuildersKt__BuildersKt.runBlocking$BuildersKt__BuildersKt(Builders.kt:85)
	at kotlinx.coroutines.BuildersKt__BuildersKt.runBlockingWithParallelismCompensation(Builders.kt:61)
	at kotlinx.coroutines.BuildersKt.runBlockingWithParallelismCompensation(Unknown Source)
	at kotlinx.coroutines.internal.intellij.IntellijCoroutines.runBlockingWithParallelismCompensation(intellij.kt:48)
	at com.intellij.util.IntelliJCoroutinesFacade.runBlockingWithParallelismCompensation(IntelliJCoroutinesFacade.kt:35)
	at com.intellij.openapi.progress.CoroutinesKt.runBlockingCancellable$lambda$0(coroutines.kt:143)
	at com.intellij.openapi.progress.ContextKt.prepareIndicatorThreadContext$lambda$1$0(context.kt:110)
	at com.intellij.concurrency.ThreadContext.resetThreadContext(threadContext.kt:294)
	at com.intellij.openapi.progress.ContextKt.prepareIndicatorThreadContext$lambda$1(context.kt:109)
	at com.intellij.openapi.progress.impl.CoreProgressManager.silenceGlobalIndicator(CoreProgressManager.java:1086)
	at com.intellij.openapi.progress.ContextKt.prepareIndicatorThreadContext(context.kt:108)
	at com.intellij.openapi.progress.ContextKt.prepareThreadContext(context.kt:79)
	at com.intellij.openapi.progress.CoroutinesKt.runBlockingCancellable(coroutines.kt:134)
	at com.intellij.openapi.progress.CoroutinesKt.runBlockingCancellable(coroutines.kt:117)
	at com.intellij.ide.actions.searcheverywhere.ActionSearchEverywhereContributor.fetchWeightedElements$lambda$0(ActionSearchEverywhereContributor.kt:110)
	at com.intellij.openapi.progress.impl.CoreProgressManager.lambda$runProcess$2(CoreProgressManager.java:256)
	at com.intellij.openapi.progress.impl.CoreProgressManager.lambda$executeProcessUnderProgress$14(CoreProgressManager.java:717)
	at com.intellij.openapi.progress.impl.CoreProgressManager.registerIndicatorAndRun(CoreProgressManager.java:792)
	at com.intellij.openapi.progress.impl.CoreProgressManager.computeUnderProgress(CoreProgressManager.java:748)
	at com.intellij.openapi.progress.impl.CoreProgressManager.executeProcessUnderProgress(CoreProgressManager.java:716)
	at com.intellij.openapi.progress.impl.ProgressManagerImpl.executeProcessUnderProgress(ProgressManagerImpl.java:75)
	at com.intellij.openapi.progress.impl.CoreProgressManager.runProcess(CoreProgressManager.java:240)
	at com.intellij.ide.actions.searcheverywhere.ActionSearchEverywhereContributor.fetchWeightedElements(ActionSearchEverywhereContributor.kt:109)
	at com.intellij.ide.actions.searcheverywhere.MixedResultsSearcher$ContributorSearchTask.run(MixedResultsSearcher.java:238)
	at com.intellij.util.ConcurrencyUtil.runUnderThreadName(ConcurrencyUtil.java:249)
	at com.intellij.util.ConcurrencyUtil.lambda$underThreadNameRunnable$3(ConcurrencyUtil.java:237)
	at com.intellij.openapi.application.impl.ApplicationImpl$4.run(ApplicationImpl.java:334)
	at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:572)
	at com.intellij.util.concurrency.ContextCallable.lambda$call$1(ContextCallable.java:86)
	at com.intellij.concurrency.ThreadContext.installThreadContext(threadContext.kt:305)
	at com.intellij.util.concurrency.ContextCallable.lambda$call$2(ContextCallable.java:83)
	at com.intellij.util.concurrency.ContextCallable.call(ContextCallable.java:96)
	at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:317)
	at com.intellij.util.concurrency.ChildContext$runInChildContext$1.invoke(propagation.kt:167)
	at com.intellij.util.concurrency.ChildContext$runInChildContext$1.invoke(propagation.kt:167)
	at com.intellij.util.concurrency.ChildContext.runInChildContext(propagation.kt:173)
	at com.intellij.util.concurrency.ChildContext.runInChildContext(propagation.kt:167)
	at com.intellij.util.concurrency.ContextRunnable.lambda$run$0(ContextRunnable.java:26)
	at com.intellij.concurrency.ThreadContext.resetThreadContext(threadContext.kt:294)
	at com.intellij.util.concurrency.ContextRunnable.run(ContextRunnable.java:25)
	at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1144)
	at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:642)
	at java.base/java.util.concurrent.Executors$PrivilegedThreadFactory$1$1.run(Executors.java:735)
	at java.base/java.util.concurrent.Executors$PrivilegedThreadFactory$1$1.run(Executors.java:732)
	at java.base/java.security.AccessController.doPrivileged(AccessController.java:400)
	at java.base/java.util.concurrent.Executors$PrivilegedThreadFactory$1.run(Executors.java:732)
	at java.base/java.lang.Thread.run(Thread.java:1583)
Caused by: java.lang.ClassNotFoundException: ca.nosuchcompany.rider.plugins.mediatr.GoToHandlerAction PluginClassLoader(plugin=PluginMainDescriptor(name=Mediator Extensions, id=ca.nosuchcompany.rider.plugins.mediatr, version=25.11.08101, isBundled=false, path=~\AppData\Roaming\JetBrains\Rider2025.3\plugins\mediator), packagePrefix=null, state=active, parents=ContentModuleDescriptor(id=intellij.platform.vcs.log.graph) <- PluginMainDescriptor(name=IDEA CORE, id=com.intellij, version=253.28294.88, isBundled=true, path=C:\Program Files\JetBrains\JetBrains Rider 2023.1.2\lib), ContentModuleDescriptor(id=intellij.platform.vcs.log) <- PluginMainDescriptor(name=IDEA CORE, id=com.intellij, version=253.28294.88, isBundled=true, path=C:\Program Files\JetBrains\JetBrains Rider 2023.1.2\lib), ContentModuleDescriptor(id=intellij.platform.vcs.dvcs) <- PluginMainDescriptor(name=IDEA CORE, id=com.intellij, version=253.28294.88, isBundled=true, path=C:\Program Files\JetBrains\JetBrains Rider 2023.1.2\lib), ContentModuleDescriptor(id=intellij.platform.vcs.impl) <- PluginMainDescriptor(name=IDEA CORE, id=com.intellij, version=253.28294.88, isBundled=true, path=C:\Program Files\JetBrains\JetBrains Rider 2023.1.2\lib), ContentModuleDescriptor(id=intellij.platform.vcs.log.impl) <- PluginMainDescriptor(name=IDEA CORE, id=com.intellij, version=253.28294.88, isBundled=true, path=C:\Program Files\JetBrains\JetBrains Rider 2023.1.2\lib), ContentModuleDescriptor(id=intellij.platform.vcs.dvcs.impl) <- PluginMainDescriptor(name=IDEA CORE, id=com.intellij, version=253.28294.88, isBundled=true, path=C:\Program Files\JetBrains\JetBrains Rider 2023.1.2\lib), ContentModuleDescriptor(id=intellij.platform.collaborationTools) <- PluginMainDescriptor(name=IDEA CORE, id=com.intellij, version=253.28294.88, isBundled=true, path=C:\Program Files\JetBrains\JetBrains Rider 2023.1.2\lib), ContentModuleDescriptor(id=intellij.rider) <- PluginMainDescriptor(name=IDEA CORE, id=com.intellij, version=253.28294.88, isBundled=true, path=C:\Program Files\JetBrains\JetBrains Rider 2023.1.2\lib), )
	at com.intellij.serviceContainer.ComponentManagerImplKt.doLoadClass(ComponentManagerImpl.kt:1445)
	at com.intellij.serviceContainer.ComponentManagerImpl.instantiateClass(ComponentManagerImpl.kt:917)
	... 62 more

[FWindson]

me too on JetBrains Rider 2025.3.3 ...

com.intellij.diagnostic.PluginException: ca.nosuchcompany.rider.plugins.mediatr.GoToHandlerAction PluginClassLoader(plugin=PluginMainDescriptor(name=Mediator Extensions, id=ca.nosuchcompany.rider.plugins.mediatr, version=25.12.09109, isBundled=false, path=~\AppData\Roaming\JetBrains\Rider2025.3\plugins\mediator), packagePrefix=null, state=active, parents=ContentModuleDescriptor(id=intellij.platform.vcs.log.graph) <- PluginMainDescriptor(name=IDEA CORE, id=com.intellij, version=253.31033.136, isBundled=true, path=~\AppData\Local\Programs\Rider\lib), ContentModuleDescriptor(id=intellij.platform.vcs.log) <- PluginMainDescriptor(name=IDEA CORE, id=com.intellij, version=253.31033.136, isBundled=true, path=~\AppData\Local\Programs\Rider\lib), ContentModuleDescriptor(id=intellij.platform.vcs.dvcs) <- PluginMainDescriptor(name=IDEA CORE, id=com.intellij, version=253.31033.136, isBundled=true, path=~\AppData\Local\Programs\Rider\lib), ContentModuleDescriptor(id=intellij.platform.vcs.impl) <- PluginMainDescriptor(name=IDEA CORE, id=com.intellij, version=253.31033.136, isBundled=true, path=~\AppData\Local\Programs\Rider\lib), ContentModuleDescriptor(id=intellij.platform.vcs.log.impl) <- PluginMainDescriptor(name=IDEA CORE, id=com.intellij, version=253.31033.136, isBundled=true, path=~\AppData\Local\Programs\Rider\lib), ContentModuleDescriptor(id=intellij.platform.vcs.dvcs.impl) <- PluginMainDescriptor(name=IDEA CORE, id=com.intellij, version=253.31033.136, isBundled=true, path=~\AppData\Local\Programs\Rider\lib), ContentModuleDescriptor(id=intellij.platform.collaborationTools) <- PluginMainDescriptor(name=IDEA CORE, id=com.intellij, version=253.31033.136, isBundled=true, path=~\AppData\Local\Programs\Rider\lib), ContentModuleDescriptor(id=intellij.rider) <- PluginMainDescriptor(name=IDEA CORE, id=com.intellij, version=253.31033.136, isBundled=true, path=~\AppData\Local\Programs\Rider\lib), ) [Plugin: ca.nosuchcompany.rider.plugins.mediatr]
	at com.intellij.serviceContainer.ComponentManagerImpl.instantiateClass(ComponentManagerImpl.kt:926)
	at com.intellij.openapi.actionSystem.impl.ActionManagerImplKt.instantiate(ActionManagerImpl.kt:1450)
	at com.intellij.openapi.actionSystem.impl.ActionManagerImplKt.convertStub(ActionManagerImpl.kt:1696)
	at com.intellij.openapi.actionSystem.impl.ActionManagerImplKt.getAction(ActionManagerImpl.kt:2193)
	at com.intellij.openapi.actionSystem.impl.ActionManagerImplKt.access$getAction(ActionManagerImpl.kt:1)
	at com.intellij.openapi.actionSystem.impl.ActionManagerImpl.getAction(ActionManagerImpl.kt:397)
	at com.intellij.openapi.keymap.impl.ui.ActionsTreeUtil.getTemplatePresentation(ActionsTreeUtil.java:70)
	at com.intellij.openapi.keymap.impl.ui.ActionsTreeUtil.getTextToCompare(ActionsTreeUtil.java:595)
	at java.base/java.util.Comparator.lambda$comparing$77a9974f$1(Comparator.java:473)
	at java.base/java.util.TimSort.countRunAndMakeAscending(TimSort.java:355)
	at java.base/java.util.TimSort.sort(TimSort.java:220)
	at java.base/java.util.Arrays.sort(Arrays.java:1234)
	at com.intellij.openapi.keymap.impl.ui.ActionsTreeUtil.createPluginActionsGroup(ActionsTreeUtil.java:157)
	at com.intellij.openapi.keymap.impl.ui.ActionsTreeUtil.createPluginsActionsGroup(ActionsTreeUtil.java:144)
	at com.intellij.openapi.keymap.impl.ui.ActionsTreeUtil.createMainGroup(ActionsTreeUtil.java:663)
	at com.intellij.openapi.keymap.impl.ui.ActionsTree.reset(ActionsTree.java:226)
	at com.intellij.openapi.keymap.impl.ui.ActionsTree.reset(ActionsTree.java:192)
	at com.intellij.openapi.keymap.impl.ui.KeymapPanel.currentKeymapChanged(KeymapPanel.java:303)
	at com.intellij.openapi.keymap.impl.ui.KeymapSelector.notifyConsumer(KeymapSelector.java:140)
	at com.intellij.openapi.keymap.impl.ui.KeymapSelector.selectKeymap(KeymapSelector.java:151)
	at com.intellij.openapi.keymap.impl.ui.KeymapSchemeManager.reset(KeymapSchemeManager.java:174)
	at com.intellij.openapi.keymap.impl.ui.KeymapPanel.reset(KeymapPanel.java:559)
	at com.intellij.openapi.options.ex.ConfigurableWrapper.reset(ConfigurableWrapper.java:217)
	at com.intellij.openapi.options.ex.ConfigurableCardPanel.reset(ConfigurableCardPanel.java:194)
	at com.intellij.openapi.options.ex.ConfigurableCardPanel.lambda$createConfigurableComponent$4(ConfigurableCardPanel.java:126)
	at com.intellij.openapi.application.impl.AppImplKt$rethrowCheckedExceptions$2.invoke(appImpl.kt:126)
	at com.intellij.platform.locking.impl.NestedLocksThreadingSupport.runReadAction(NestedLocksThreadingSupport.kt:855)
	at com.intellij.openapi.application.impl.ApplicationImpl.runReadAction(ApplicationImpl.java:1069)
	at com.intellij.openapi.application.ReadAction.compute(ReadAction.java:66)
	at com.intellij.openapi.options.ex.ConfigurableCardPanel.createConfigurableComponent(ConfigurableCardPanel.java:113)
	at com.intellij.openapi.options.ex.ConfigurableCardPanel.create(ConfigurableCardPanel.java:61)
	at com.intellij.openapi.options.newEditor.ConfigurableEditor$1.create(ConfigurableEditor.java:54)
	at com.intellij.openapi.options.newEditor.ConfigurableEditor$1.create(ConfigurableEditor.java:51)
	at com.intellij.ui.CardLayoutPanel.createValue(CardLayoutPanel.java:73)
	at com.intellij.ui.CardLayoutPanel.select(CardLayoutPanel.java:101)
	at com.intellij.ui.CardLayoutPanel.lambda$selectLater$0(CardLayoutPanel.java:132)
	at com.intellij.openapi.application.TransactionGuardImpl.runWithWritingAllowed(TransactionGuardImpl.java:239)
	at com.intellij.openapi.application.TransactionGuardImpl.access$100(TransactionGuardImpl.java:25)
	at com.intellij.openapi.application.TransactionGuardImpl$1.run(TransactionGuardImpl.java:201)
	at com.intellij.openapi.application.impl.AppImplKt$runnableUnitFunction$1.invoke(appImpl.kt:124)
	at com.intellij.openapi.application.impl.AppImplKt$runnableUnitFunction$1.invoke(appImpl.kt:124)
	at com.intellij.platform.locking.impl.NestedLocksThreadingSupport.doRunWriteIntentReadAction(NestedLocksThreadingSupport.kt:736)
	at com.intellij.platform.locking.impl.NestedLocksThreadingSupport.runPreventiveWriteIntentReadAction(NestedLocksThreadingSupport.kt:710)
	at com.intellij.platform.locking.impl.NestedLocksThreadingSupport.runWriteIntentReadAction(NestedLocksThreadingSupport.kt:664)
	at com.intellij.openapi.application.impl.ApplicationImpl.runIntendedWriteActionOnCurrentThread(ApplicationImpl.java:1048)
	at com.intellij.openapi.application.impl.ApplicationImpl$7.lambda$run$0(ApplicationImpl.java:602)
	at com.intellij.concurrency.ThreadContext.installThreadContext(threadContext.kt:305)
	at com.intellij.openapi.application.impl.ApplicationImpl$7.run(ApplicationImpl.java:600)
	at com.intellij.util.concurrency.ChildContext$runInChildContext$1.invoke(propagation.kt:167)
	at com.intellij.util.concurrency.ChildContext$runInChildContext$1.invoke(propagation.kt:167)
	at com.intellij.util.concurrency.ChildContext.runInChildContext(propagation.kt:173)
	at com.intellij.util.concurrency.ChildContext.runInChildContext(propagation.kt:167)
	at com.intellij.util.concurrency.ContextRunnable.lambda$run$0(ContextRunnable.java:26)
	at com.intellij.concurrency.ThreadContext.resetThreadContext(threadContext.kt:294)
	at com.intellij.util.concurrency.ContextRunnable.run(ContextRunnable.java:25)
	at com.intellij.openapi.application.impl.NonBlockingFlushQueue.runNextEvent$lambda$1$1$0(NonBlockingFlushQueue.kt:334)
	at com.intellij.openapi.progress.impl.CoreProgressManager.computePrioritized(CoreProgressManager.java:901)
	at com.intellij.openapi.application.impl.NonBlockingFlushQueue.runNextEvent$lambda$1$1(NonBlockingFlushQueue.kt:333)
	at com.intellij.concurrency.ThreadContext.resetThreadContext(threadContext.kt:294)
	at com.intellij.openapi.application.impl.NonBlockingFlushQueue.runNextEvent$lambda$1(NonBlockingFlushQueue.kt:330)
	at com.intellij.platform.locking.impl.NestedLocksThreadingSupport.tryRunWriteIntentReadAction(NestedLocksThreadingSupport.kt:689)
	at com.intellij.openapi.application.impl.NonBlockingFlushQueue.runNextEvent(NonBlockingFlushQueue.kt:326)
	at com.intellij.openapi.application.impl.NonBlockingFlushQueue.flushNow(NonBlockingFlushQueue.kt:305)
	at com.intellij.openapi.application.impl.NonBlockingFlushQueue.FLUSH_NOW$lambda$0(NonBlockingFlushQueue.kt:167)
	at java.desktop/java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:318)
	at java.desktop/java.awt.EventQueue.dispatchEventImpl(EventQueue.java:781)
	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.desktop/java.awt.EventQueue.dispatchEvent(EventQueue.java:750)
	at com.intellij.ide.IdeEventQueue.defaultDispatchEvent(IdeEventQueue.kt:664)
	at com.intellij.ide.IdeEventQueue._dispatchEvent(IdeEventQueue.kt:517)
	at com.intellij.ide.IdeEventQueue.dispatchEvent$lambda$0$0$0(IdeEventQueue.kt:333)
	at com.intellij.ide.IdeEventQueueKt.performActivity$lambda$1(IdeEventQueue.kt:1065)
	at com.intellij.openapi.application.TransactionGuardImpl.performActivity(TransactionGuardImpl.java:117)
	at com.intellij.ide.IdeEventQueueKt.performActivity(IdeEventQueue.kt:1065)
	at com.intellij.ide.IdeEventQueue.dispatchEvent$lambda$0(IdeEventQueue.kt:331)
	at com.intellij.ide.IdeEventQueue.dispatchEvent(IdeEventQueue.kt:371)
	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:935)
	at com.intellij.openapi.ui.impl.DialogWrapperPeerImpl.lambda$show$13(DialogWrapperPeerImpl.java:506)
	at com.intellij.openapi.application.WriteIntentReadAction.lambda$run$0(WriteIntentReadAction.java:24)
	at com.intellij.openapi.application.impl.AppImplKt$rethrowCheckedExceptions$2.invoke(appImpl.kt:126)
	at com.intellij.platform.locking.impl.NestedLocksThreadingSupport.doRunWriteIntentReadAction(NestedLocksThreadingSupport.kt:736)
	at com.intellij.platform.locking.impl.NestedLocksThreadingSupport.runPreventiveWriteIntentReadAction(NestedLocksThreadingSupport.kt:710)
	at com.intellij.platform.locking.impl.NestedLocksThreadingSupport.runWriteIntentReadAction(NestedLocksThreadingSupport.kt:664)
	at com.intellij.openapi.application.impl.ApplicationImpl.runWriteIntentReadAction(ApplicationImpl.java:1185)
	at com.intellij.openapi.application.WriteIntentReadAction.compute(WriteIntentReadAction.java:55)
	at com.intellij.openapi.application.WriteIntentReadAction.run(WriteIntentReadAction.java:23)
	at com.intellij.openapi.ui.impl.DialogWrapperPeerImpl.lambda$show$14(DialogWrapperPeerImpl.java:505)
	at com.intellij.openapi.ui.impl.DialogWrapperPeerImpl.lambda$show$5(DialogWrapperPeerImpl.java:450)
	at com.intellij.concurrency.ThreadContext.installThreadContext(threadContext.kt:305)
	at com.intellij.openapi.ui.impl.DialogWrapperPeerImpl.lambda$show$6(DialogWrapperPeerImpl.java:449)
	at com.intellij.openapi.ui.impl.DialogWrapperPeerImpl.show(DialogWrapperPeerImpl.java:501)
	at com.intellij.openapi.ui.DialogWrapper.lambda$doShow$16(DialogWrapper.java:1823)
	at com.intellij.openapi.application.WriteIntentReadAction.lambda$run$0(WriteIntentReadAction.java:24)
	at com.intellij.openapi.application.impl.AppImplKt$rethrowCheckedExceptions$2.invoke(appImpl.kt:126)
	at com.intellij.platform.locking.impl.NestedLocksThreadingSupport.doRunWriteIntentReadAction(NestedLocksThreadingSupport.kt:736)
	at com.intellij.platform.locking.impl.NestedLocksThreadingSupport.runPreventiveWriteIntentReadAction(NestedLocksThreadingSupport.kt:710)
	at com.intellij.platform.locking.impl.NestedLocksThreadingSupport.runWriteIntentReadAction(NestedLocksThreadingSupport.kt:664)
	at com.intellij.openapi.application.impl.ApplicationImpl.runWriteIntentReadAction(ApplicationImpl.java:1185)
	at com.intellij.openapi.application.WriteIntentReadAction.compute(WriteIntentReadAction.java:55)
	at com.intellij.openapi.application.WriteIntentReadAction.run(WriteIntentReadAction.java:23)
	at com.intellij.openapi.ui.DialogWrapper.doShow(DialogWrapper.java:1822)
	at com.intellij.openapi.ui.DialogWrapper.show(DialogWrapper.java:1770)
	at com.intellij.ide.actions.ShowSettingsUtilImpl$showSettingsDialog$4.invokeSuspend(ShowSettingsUtilImpl.kt:197)
	at kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith(ContinuationImpl.kt:34)
	at kotlinx.coroutines.DispatchedTask.run(DispatchedTask.kt:100)
	at com.intellij.openapi.application.impl.DispatchedRunnable.run(DispatchedRunnable.kt:42)
	at com.intellij.openapi.application.TransactionGuardImpl.runWithWritingAllowed(TransactionGuardImpl.java:239)
	at com.intellij.openapi.application.TransactionGuardImpl.access$100(TransactionGuardImpl.java:25)
	at com.intellij.openapi.application.TransactionGuardImpl$2.run(TransactionGuardImpl.java:221)
	at com.intellij.openapi.application.impl.NonBlockingFlushQueue.runNextEvent$lambda$1$1$0(NonBlockingFlushQueue.kt:334)
	at com.intellij.openapi.progress.impl.CoreProgressManager.computePrioritized(CoreProgressManager.java:901)
	at com.intellij.openapi.application.impl.NonBlockingFlushQueue.runNextEvent$lambda$1$1(NonBlockingFlushQueue.kt:333)
	at com.intellij.concurrency.ThreadContext.resetThreadContext(threadContext.kt:294)
	at com.intellij.openapi.application.impl.NonBlockingFlushQueue.runNextEvent$lambda$1(NonBlockingFlushQueue.kt:330)
	at com.intellij.platform.locking.impl.NestedLocksThreadingSupport.tryRunWriteIntentReadAction(NestedLocksThreadingSupport.kt:689)
	at com.intellij.openapi.application.impl.NonBlockingFlushQueue.runNextEvent(NonBlockingFlushQueue.kt:326)
	at com.intellij.openapi.application.impl.NonBlockingFlushQueue.flushNow(NonBlockingFlushQueue.kt:305)
	at com.intellij.openapi.application.impl.NonBlockingFlushQueue.FLUSH_NOW$lambda$0(NonBlockingFlushQueue.kt:167)
	at java.desktop/java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:318)
	at java.desktop/java.awt.EventQueue.dispatchEventImpl(EventQueue.java:781)
	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.desktop/java.awt.EventQueue.dispatchEvent(EventQueue.java:750)
	at com.intellij.ide.IdeEventQueue.defaultDispatchEvent(IdeEventQueue.kt:664)
	at com.intellij.ide.IdeEventQueue._dispatchEvent(IdeEventQueue.kt:517)
	at com.intellij.ide.IdeEventQueue.dispatchEvent$lambda$0$0$0(IdeEventQueue.kt:333)
	at com.intellij.ide.IdeEventQueueKt.performActivity$lambda$1(IdeEventQueue.kt:1065)
	at com.intellij.openapi.application.TransactionGuardImpl.performActivity(TransactionGuardImpl.java:109)
	at com.intellij.ide.IdeEventQueueKt.performActivity(IdeEventQueue.kt:1065)
	at com.intellij.ide.IdeEventQueue.dispatchEvent$lambda$0(IdeEventQueue.kt:331)
	at com.intellij.ide.IdeEventQueue.dispatchEvent(IdeEventQueue.kt:371)
	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: ca.nosuchcompany.rider.plugins.mediatr.GoToHandlerAction PluginClassLoader(plugin=PluginMainDescriptor(name=Mediator Extensions, id=ca.nosuchcompany.rider.plugins.mediatr, version=25.12.09109, isBundled=false, path=~\AppData\Roaming\JetBrains\Rider2025.3\plugins\mediator), packagePrefix=null, state=active, parents=ContentModuleDescriptor(id=intellij.platform.vcs.log.graph) <- PluginMainDescriptor(name=IDEA CORE, id=com.intellij, version=253.31033.136, isBundled=true, path=~\AppData\Local\Programs\Rider\lib), ContentModuleDescriptor(id=intellij.platform.vcs.log) <- PluginMainDescriptor(name=IDEA CORE, id=com.intellij, version=253.31033.136, isBundled=true, path=~\AppData\Local\Programs\Rider\lib), ContentModuleDescriptor(id=intellij.platform.vcs.dvcs) <- PluginMainDescriptor(name=IDEA CORE, id=com.intellij, version=253.31033.136, isBundled=true, path=~\AppData\Local\Programs\Rider\lib), ContentModuleDescriptor(id=intellij.platform.vcs.impl) <- PluginMainDescriptor(name=IDEA CORE, id=com.intellij, version=253.31033.136, isBundled=true, path=~\AppData\Local\Programs\Rider\lib), ContentModuleDescriptor(id=intellij.platform.vcs.log.impl) <- PluginMainDescriptor(name=IDEA CORE, id=com.intellij, version=253.31033.136, isBundled=true, path=~\AppData\Local\Programs\Rider\lib), ContentModuleDescriptor(id=intellij.platform.vcs.dvcs.impl) <- PluginMainDescriptor(name=IDEA CORE, id=com.intellij, version=253.31033.136, isBundled=true, path=~\AppData\Local\Programs\Rider\lib), ContentModuleDescriptor(id=intellij.platform.collaborationTools) <- PluginMainDescriptor(name=IDEA CORE, id=com.intellij, version=253.31033.136, isBundled=true, path=~\AppData\Local\Programs\Rider\lib), ContentModuleDescriptor(id=intellij.rider) <- PluginMainDescriptor(name=IDEA CORE, id=com.intellij, version=253.31033.136, isBundled=true, path=~\AppData\Local\Programs\Rider\lib), )
	at com.intellij.serviceContainer.ComponentManagerImplKt.doLoadClass(ComponentManagerImpl.kt:1446)
	at com.intellij.serviceContainer.ComponentManagerImpl.instantiateClass(ComponentManagerImpl.kt:918)
	... 150 more

[kzryzstof]

Like with most personal projects, finding time to track down and fix issues isn’t always easy. Fortunately, I managed to carve out some time, and the fix should be included in the next release 26.03.07124 (2026.1 EAP).

Thank you for your patience :)