I m having a weird issue when trying to sync KMP project in kotlinlang #multiplatform

I'm having a weird issue when trying to sync KMP p...

Wojtek

12/12/2025, 11:29 AM

I'm having a weird issue when trying to sync KMP project in AndroidStudio - even though the log says: "BUILD SUCCESSFUL in 59s" I get error "cancelled" and the project is not synced. It was working just fine yesterday. Project builds fine from CLI. Seems to be caused by this NPE:

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2025-12-12 12:27:22,987 [  43942]   WARN - #c.i.o.e.u.ExternalSystemUtil - Sync finish event has not been received
java.lang.NullPointerException: 
	at java.base/java.util.Objects.requireNonNull(Unknown Source)
	at org.jetbrains.plugins.gradle.service.notification.GradleNotificationExtension.isInternalError(GradleNotificationExtension.java:34)
	at com.intellij.openapi.externalSystem.service.notification.ExternalSystemNotificationManager.lambda$isInternalError$3(ExternalSystemNotificationManager.java:186)
	at java.base/java.util.stream.MatchOps$1MatchSink.accept(Unknown Source)
	at java.base/java.util.AbstractList$RandomAccessSpliterator.tryAdvance(Unknown Source)
	at java.base/java.util.stream.ReferencePipeline.forEachWithCancel(Unknown Source)
	at java.base/java.util.stream.AbstractPipeline.copyIntoWithCancel(Unknown Source)
	at java.base/java.util.stream.AbstractPipeline.copyInto(Unknown Source)
	at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(Unknown Source)
	at java.base/java.util.stream.MatchOps$MatchOp.evaluateSequential(Unknown Source)
	at java.base/java.util.stream.MatchOps$MatchOp.evaluateSequential(Unknown Source)
	at java.base/java.util.stream.AbstractPipeline.evaluate(Unknown Source)
	at java.base/java.util.stream.ReferencePipeline.anyMatch(Unknown Source)
	at com.intellij.openapi.externalSystem.service.notification.ExternalSystemNotificationManager.isInternalError(ExternalSystemNotificationManager.java:186)
	at com.intellij.openapi.externalSystem.service.notification.ExternalSystemNotificationManager.doCreateNotification(ExternalSystemNotificationManager.java:139)
	at com.intellij.openapi.externalSystem.service.notification.ExternalSystemNotificationManager.createNotification(ExternalSystemNotificationManager.java:110)
	at com.intellij.openapi.externalSystem.util.ExternalSystemUtil.createFailureResult(ExternalSystemUtil.java:733)
	at com.intellij.openapi.externalSystem.util.ExternalSystemUtil.lambda$handleSyncResult$6(ExternalSystemUtil.java:608)
	at com.intellij.openapi.externalSystem.util.ExternalSystemUtil.getSyncFinishEvent(ExternalSystemUtil.java:654)
	at com.intellij.openapi.externalSystem.util.ExternalSystemUtil.handleSyncResult(ExternalSystemUtil.java:623)
	at com.intellij.openapi.externalSystem.util.ExternalSystemUtil.lambda$executeSync$0(ExternalSystemUtil.java:460)
	at com.intellij.openapi.externalSystem.util.ExternalSystemTelemetryUtil.lambda$runWithSpan$0(ExternalSystemTelemetryUtil.java:26)

any idea hot to fix it?

tapchicoma

12/12/2025, 11:33 AM

check AS logs (Help -> Logs)

Wojtek

12/12/2025, 11:35 AM

but it opens the same logfile where I got the exception from (

/Users/wojtek/Library/Logs/Google/AndroidStudio2025.2.2/idea.log

). Should I check different one?

Wojtek

12/12/2025, 11:36 AM

hmm… ok, there are more exceptions before

Wojtek

12/12/2025, 11:36 AM

is going to analyse :)

Wojtek

12/12/2025, 11:40 AM

hmm… after nuking

.gradle

directory and invalidating cache I get "internal IDE error":

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java.lang.NullPointerException
	at com.android.tools.idea.gradle.project.sync.idea.data.service.GradleModuleModelDataService.importData(GradleModuleModelDataService.kt:66)
	at com.android.tools.idea.gradle.project.sync.idea.data.service.ModuleModelDataService.lambda$importData$0(ModuleModelDataService.java:51)
	at com.intellij.openapi.command.WriteCommandAction.lambda$runWriteCommandAction$4(WriteCommandAction.java:341)
	at com.intellij.openapi.command.WriteCommandAction$BuilderImpl.lambda$doRunWriteCommandAction$1(WriteCommandAction.java:147)
	at com.intellij.openapi.application.impl.AppImplKt$runnableUnitFunction$1.invoke(appImpl.kt:104)
	at com.intellij.openapi.application.impl.AppImplKt$runnableUnitFunction$1.invoke(appImpl.kt:104)
	at com.intellij.platform.locking.impl.NestedLocksThreadingSupport.runWriteAction(NestedLocksThreadingSupport.kt:923)
	at com.intellij.openapi.application.impl.ApplicationImpl.runWriteAction(ApplicationImpl.java:1106)
	at com.intellij.openapi.command.WriteCommandAction$BuilderImpl.lambda$doRunWriteCommandAction$2(WriteCommandAction.java:145)
	at com.intellij.openapi.command.impl.CoreCommandProcessor.lambda$executeCommand$2(CoreCommandProcessor.java:232)
	at com.intellij.openapi.application.impl.AppImplKt$rethrowCheckedExceptions$2.invoke(appImpl.kt:106)
	at com.intellij.platform.locking.impl.NestedLocksThreadingSupport.doRunWriteIntentReadAction(NestedLocksThreadingSupport.kt:666)
	at com.intellij.platform.locking.impl.NestedLocksThreadingSupport.runPreventiveWriteIntentReadAction(NestedLocksThreadingSupport.kt:640)
	at com.intellij.platform.locking.impl.NestedLocksThreadingSupport.runWriteIntentReadAction(NestedLocksThreadingSupport.kt:633)
	at com.intellij.openapi.application.impl.ApplicationImpl.runWriteIntentReadAction(ApplicationImpl.java:1166)
	at com.intellij.openapi.command.impl.CoreCommandProcessor.executeCommand(CoreCommandProcessor.java:228)
	at com.intellij.openapi.command.impl.CoreCommandProcessor.executeCommand(CoreCommandProcessor.java:193)
	at com.intellij.openapi.command.WriteCommandAction$BuilderImpl.doRunWriteCommandAction(WriteCommandAction.java:154)
	at com.intellij.openapi.command.WriteCommandAction$BuilderImpl.lambda$run$0(WriteCommandAction.java:125)
	at com.intellij.openapi.application.TransactionGuardImpl.runWithWritingAllowed(TransactionGuardImpl.java:240)
	at com.intellij.openapi.application.TransactionGuardImpl.access$100(TransactionGuardImpl.java:26)
	at com.intellij.openapi.application.TransactionGuardImpl$1.run(TransactionGuardImpl.java:202)
	at com.intellij.openapi.application.impl.AppImplKt$runnableUnitFunction$1.invoke(appImpl.kt:104)
	at com.intellij.openapi.application.impl.AppImplKt$runnableUnitFunction$1.invoke(appImpl.kt:104)
	at com.intellij.platform.locking.impl.NestedLocksThreadingSupport.doRunWriteIntentReadAction(NestedLocksThreadingSupport.kt:666)
	at com.intellij.platform.locking.impl.NestedLocksThreadingSupport.runPreventiveWriteIntentReadAction(NestedLocksThreadingSupport.kt:640)
	at com.intellij.platform.locking.impl.NestedLocksThreadingSupport.runWriteIntentReadAction(NestedLocksThreadingSupport.kt:633)
	at com.intellij.openapi.application.impl.ApplicationImpl.runIntendedWriteActionOnCurrentThread(ApplicationImpl.java:1022)
	at com.intellij.openapi.application.impl.ApplicationImpl$6.run(ApplicationImpl.java:574)
	at com.intellij.openapi.application.impl.AppImplKt.rethrowExceptions$lambda$2(appImpl.kt:63)
	at com.intellij.util.concurrency.ChildContext$runInChildContext$1.invoke(propagation.kt:167)
	at com.intellij.util.concurrency.ChildContext$runInChildContext$1.invoke(propagation.kt:167)
	at com.intellij.util.concurrency.ChildContext.runInChildContext(propagation.kt:173)
	at com.intellij.util.concurrency.ChildContext.runInChildContext(propagation.kt:167)
	at com.intellij.util.concurrency.ContextRunnable.run(ContextRunnable.java:27)
	at com.intellij.openapi.application.impl.AppImplKt.rethrowExceptions$lambda$3(appImpl.kt:74)
	at com.intellij.openapi.application.impl.LaterInvocator$1.run(LaterInvocator.java:105)
	at com.intellij.openapi.application.impl.FlushQueue.runNextEvent(FlushQueue.java:122)
	at com.intellij.openapi.application.impl.FlushQueue.flushNow(FlushQueue.java:43)
	at java.desktop/java.awt.event.InvocationEvent.dispatch(Unknown Source)
	at java.desktop/java.awt.EventQueue.dispatchEventImpl(Unknown Source)
	at java.desktop/java.awt.EventQueue$4.run(Unknown Source)
	at java.desktop/java.awt.EventQueue$4.run(Unknown Source)
	at java.base/java.security.AccessController.doPrivileged(Unknown Source)
	at java.base/java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(Unknown Source)
	at java.desktop/java.awt.EventQueue.dispatchEvent(Unknown Source)
	at com.intellij.ide.IdeEventQueue.defaultDispatchEvent(IdeEventQueue.kt:595)
	at com.intellij.ide.IdeEventQueue._dispatchEvent(IdeEventQueue.kt:488)
	at com.intellij.ide.IdeEventQueue.dispatchEvent$lambda$12$lambda$11$lambda$10$lambda$9(IdeEventQueue.kt:313)
	at com.intellij.openapi.progress.impl.CoreProgressManager.computePrioritized(CoreProgressManager.java:865)
	at com.intellij.ide.IdeEventQueue.dispatchEvent$lambda$12$lambda$11$lambda$10(IdeEventQueue.kt:312)
	at com.intellij.ide.IdeEventQueueKt.performActivity$lambda$3(IdeEventQueue.kt:974)
	at com.intellij.openapi.application.TransactionGuardImpl.performActivity(TransactionGuardImpl.java:110)
	at com.intellij.ide.IdeEventQueueKt.performActivity(IdeEventQueue.kt:974)
	at com.intellij.ide.IdeEventQueue.dispatchEvent$lambda$12(IdeEventQueue.kt:307)
	at com.intellij.ide.IdeEventQueue.dispatchEvent(IdeEventQueue.kt:347)
	at java.desktop/java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
	at java.desktop/java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
	at java.desktop/java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
	at java.desktop/java.awt.EventDispatchThread.pumpEvents(Unknown Source)
	at java.desktop/java.awt.EventDispatchThread.pumpEvents(Unknown Source)
	at java.desktop/java.awt.EventDispatchThread.run(Unknown Source)
	Suppressed: com.intellij.util.ExceptionUtilRt$RethrownStack: Rethrown at
		at com.intellij.util.ExceptionUtilRt.addRethrownStackAsSuppressed(ExceptionUtilRt.java:43)
		at com.intellij.util.ExceptionUtilRt.rethrowUnchecked(ExceptionUtilRt.java:17)
		at com.intellij.util.ExceptionUtil.rethrowUnchecked(ExceptionUtil.java:131)
		at com.intellij.util.ExceptionUtil.rethrow(ExceptionUtil.java:146)
		at com.intellij.util.ExceptionUtil.rethrowAllAsUnchecked(ExceptionUtil.java:157)
		at com.intellij.openapi.externalSystem.service.project.manage.ProjectDataManagerImpl.importData(ProjectDataManagerImpl.java:204)
		at com.intellij.openapi.externalSystem.service.project.manage.ProjectDataManagerImpl.importData(ProjectDataManagerImpl.java:92)
		at com.android.tools.idea.gradle.project.sync.idea.IdeaSyncPopulateProjectTask.populateProject(IdeaSyncPopulateProjectTask.java:59)
		at com.android.tools.idea.gradle.project.sync.idea.ProjectSetUpTask.doPopulateProject(ProjectSetUpTask.java:54)
		at com.android.tools.idea.gradle.project.sync.idea.ProjectSetUpTask.onSuccess(ProjectSetUpTask.java:48)
		at com.intellij.openapi.externalSystem.util.ExternalSystemUtil.handleSyncResult(ExternalSystemUtil.java:579)
		at com.intellij.openapi.externalSystem.util.ExternalSystemUtil.lambda$executeSync$0(ExternalSystemUtil.java:460)
		at com.intellij.openapi.externalSystem.util.ExternalSystemTelemetryUtil.lambda$runWithSpan$0(ExternalSystemTelemetryUtil.java:26)
		at com.intellij.platform.diagnostic.telemetry.helpers.TraceKt.use(trace.kt:29)
		at com.intellij.openapi.externalSystem.util.ExternalSystemTelemetryUtil.runWithSpan(ExternalSystemTelemetryUtil.java:25)
		at com.intellij.openapi.externalSystem.util.ExternalSystemUtil.lambda$executeSync$1(ExternalSystemUtil.java:459)
		at com.intellij.openapi.externalSystem.util.ExternalSystemUtil.incompleteDependenciesState(ExternalSystemUtil.java:475)
		at com.intellij.openapi.externalSystem.util.ExternalSystemUtil.executeSync(ExternalSystemUtil.java:453)
		at com.intellij.openapi.externalSystem.util.ExternalSystemUtil$2.lambda$execute$0(ExternalSystemUtil.java:319)
		at com.intellij.openapi.externalSystem.util.ExternalSystemTelemetryUtil.lambda$runWithSpan$0(ExternalSystemTelemetryUtil.java:26)
		at com.intellij.platform.diagnostic.telemetry.helpers.TraceKt.use(trace.kt:29)
		at com.intellij.openapi.externalSystem.util.ExternalSystemTelemetryUtil.runWithSpan(ExternalSystemTelemetryUtil.java:25)
		at com.intellij.openapi.externalSystem.util.ExternalSystemUtil$2.execute(ExternalSystemUtil.java:318)
		at com.intellij.openapi.externalSystem.util.ExternalSystemTaskUnderProgress$2.run(ExternalSystemTaskUnderProgress.java:55)
		at com.intellij.openapi.progress.impl.CoreProgressManager.startTask(CoreProgressManager.java:498)
		at com.intellij.openapi.progress.impl.ProgressManagerImpl.startTask(ProgressManagerImpl.java:119)
		at com.intellij.openapi.progress.impl.CoreProgressManager.lambda$runProcessWithProgressAsynchronously$7(CoreProgressManager.java:549)
		at com.intellij.openapi.progress.impl.ProgressRunner.lambda$submit$4(ProgressRunner.java:252)
		at com.intellij.openapi.progress.ProgressManager.lambda$runProcess$0(ProgressManager.java:98)
		at com.intellij.openapi.progress.impl.CoreProgressManager.lambda$runProcess$1(CoreProgressManager.java:229)
		at com.intellij.platform.diagnostic.telemetry.helpers.TraceKt.use(trace.kt:44)
		at com.intellij.openapi.progress.impl.CoreProgressManager.lambda$runProcess$2(CoreProgressManager.java:228)
		at com.intellij.openapi.progress.impl.CoreProgressManager.lambda$executeProcessUnderProgress$14(CoreProgressManager.java:681)
		at com.intellij.openapi.progress.impl.CoreProgressManager.registerIndicatorAndRun(CoreProgressManager.java:756)
		at com.intellij.openapi.progress.impl.CoreProgressManager.computeUnderProgress(CoreProgressManager.java:712)
		at com.intellij.openapi.progress.impl.CoreProgressManager.executeProcessUnderProgress(CoreProgressManager.java:680)
		at com.intellij.openapi.progress.impl.ProgressManagerImpl.executeProcessUnderProgress(ProgressManagerImpl.java:78)
		at com.intellij.openapi.progress.impl.CoreProgressManager.runProcess(CoreProgressManager.java:209)
		at com.intellij.openapi.progress.ProgressManager.runProcess(ProgressManager.java:98)
		at com.intellij.openapi.progress.impl.ProgressRunner.lambda$submit$5(ProgressRunner.java:252)
		at com.intellij.openapi.progress.impl.ProgressRunner$ProgressRunnable.run(ProgressRunner.java:515)
		at com.intellij.openapi.progress.impl.ProgressRunner.lambda$launchTask$18(ProgressRunner.java:480)
		at com.intellij.util.concurrency.ChildContext$runInChildContext$1.invoke(propagation.kt:167)
		at com.intellij.util.concurrency.ChildContext$runInChildContext$1.invoke(propagation.kt:167)
		at com.intellij.util.concurrency.ChildContext.runInChildContext(propagation.kt:173)
		at com.intellij.util.concurrency.ChildContext.runInChildContext(propagation.kt:167)
		at com.intellij.openapi.progress.impl.ProgressRunner.lambda$launchTask$19(ProgressRunner.java:476)
		at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
		at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
		at java.base/java.util.concurrent.Executors$PrivilegedThreadFactory$1$1.run(Unknown Source)
		at java.base/java.util.concurrent.Executors$PrivilegedThreadFactory$1$1.run(Unknown Source)
		at java.base/java.security.AccessController.doPrivileged(Unknown Source)
		at java.base/java.util.concurrent.Executors$PrivilegedThreadFactory$1.run(Unknown Source)
		at java.base/java.lang.Thread.run(Unknown Source)

tapchicoma

12/12/2025, 11:41 AM

the error is coming from Android plugin - please report the issue to Google issue tracker

Wojtek

12/12/2025, 11:41 AM

I did that because I saw this error about cache conflict:

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2025-12-12 12:26:59,318 [  20273] SEVERE - #com.android.tools.idea.uibuilder.editor.multirepresentation.MultiRepresentationPreview - Unexpected error while updating representations
com.intellij.diagnostic.PluginException: Element: class org.jetbrains.kotlin.psi.KtFile #kotlin  because: different providers: com.intellij.psi.SingleRootFileViewProvider{vFile=file:///Users/wojtek/dev/…/common/compose-ui/src/commonMain/kotlin/org/…/…/common/ui/SettingsAccountsListUI.kt, vFileId=37338, content=VirtualFileContent{size=31396}, eventSystemEnabled=true}(7429c470); com.intellij.psi.SingleRootFileViewProvider{vFile=file:///Users/wojtek/dev/…/common/compose-ui/src/commonMain/kotlin/org/…/…/common/ui/SettingsAccountsListUI.kt, vFileId=37338, content=VirtualFileContent{size=31396}, eventSystemEnabled=true}(4244d40f)
invalidated at: see attachment [Plugin: org.jetbrains.kotlin]
	at com.intellij.diagnostic.PluginProblemReporterImpl.createPluginExceptionByClass(PluginProblemReporterImpl.java:23)
	at com.intellij.diagnostic.PluginException.createByClass(PluginException.java:100)
	at com.intellij.psi.util.PsiUtilCore.ensureValid(PsiUtilCore.java:508)

Wojtek

12/12/2025, 11:41 AM

@tapchicoma so the internal "click here to report the issue" is of no use in this case?

tapchicoma

12/12/2025, 11:42 AM

no idea about Android Studio

Wojtek

12/12/2025, 11:42 AM

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