Auto completion doesn't work for .yml in idea 2020.3

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com.intellij.openapi.project.IndexNotReadyException: Please change caller according to com.intellij.openapi.project.IndexNotReadyException documentation at com.intellij.openapi.project.IndexNotReadyException.create(IndexNotReadyException.java:67) at com.intellij.util.indexing.FileBasedIndexImpl.handleDumbMode(FileBasedIndexImpl.java:752) at com.intellij.util.indexing.FileBasedIndexImpl.ensureUpToDate(FileBasedIndexImpl.java:704) at com.intellij.psi.stubs.StubIndexImpl.getContainingIds(StubIndexImpl.java:463) at com.intellij.psi.stubs.StubIndexImpl.processElements(StubIndexImpl.java:296) at com.intellij.psi.stubs.StubIndex.getElements(StubIndex.java:105) at com.intellij.psi.stubs.StubIndex.getElements(StubIndex.java:93) at com.intellij.psi.impl.java.stubs.index.JavaFullClassNameIndex.get(JavaFullClassNameIndex.java:30) at com.intellij.psi.impl.file.impl.JavaFileManagerImpl.doFindClasses(JavaFileManagerImpl.java:86) at com.intellij.psi.impl.file.impl.JavaFileManagerImpl.findClasses(JavaFileManagerImpl.java:73) at com.intellij.psi.impl.PsiElementFinderImpl.findClasses(PsiElementFinderImpl.java:62) at com.intellij.psi.impl.JavaPsiFacadeImpl.findClassesWithoutJvmFacade(JavaPsiFacadeImpl.java:157) at com.intellij.psi.impl.JavaPsiFacadeImpl.findClassesWithJvmFacade(JavaPsiFacadeImpl.java:128) at com.intellij.psi.impl.JavaPsiFacadeImpl.findClasses(JavaPsiFacadeImpl.java:120) at com.intellij.psi.impl.file.PsiPackageImpl.findAllClasses(PsiPackageImpl.java:203) at com.intellij.psi.impl.file.PsiPackageImpl.getCachedClassesByName(PsiPackageImpl.java:193) at com.intellij.psi.impl.file.PsiPackageImpl.findClassByShortName(PsiPackageImpl.java:270) at com.intellij.psi.impl.file.PsiPackageImpl.processDeclarations(PsiPackageImpl.java:310) at com.intellij.psi.impl.source.resolve.JavaResolveUtil.processImplicitlyImportedPackages(JavaResolveUtil.java:239) at com.intellij.psi.impl.source.JavaDummyHolder.processDeclarations(JavaDummyHolder.java:112) at com.intellij.psi.scope.util.PsiScopesUtil.treeWalkUp(PsiScopesUtil.java:61) at com.intellij.psi.scope.util.PsiScopesUtil.treeWalkUp(PsiScopesUtil.java:40) at com.intellij.psi.scope.util.PsiScopesUtil.resolveAndWalk(PsiScopesUtil.java:207) at com.intellij.psi.scope.util.PsiScopesUtil.resolveAndWalk(PsiScopesUtil.java:136) at com.intellij.psi.impl.source.PsiJavaCodeReferenceElementImpl.resolve(PsiJavaCodeReferenceElementImpl.java:489) at com.intellij.psi.impl.source.PsiJavaCodeReferenceElementImpl.resolve(PsiJavaCodeReferenceElementImpl.java:522) at com.intellij.psi.impl.source.PsiJavaCodeReferenceElementImpl.access$100(PsiJavaCodeReferenceElementImpl.java:44) at com.intellij.psi.impl.source.PsiJavaCodeReferenceElementImpl$OurGenericsResolver.resolve(PsiJavaCodeReferenceElementImpl.java:375) at com.intellij.psi.impl.source.PsiJavaCodeReferenceElementImpl$OurGenericsResolver.resolve(PsiJavaCodeReferenceElementImpl.java:368) at com.intellij.psi.impl.source.resolve.ResolveCache.lambda$resolveWithCaching$2(ResolveCache.java:179) at com.intellij.openapi.util.Computable.get(Computable.java:17) at com.intellij.psi.impl.source.resolve.ResolveCache.lambda$loggingResolver$3(ResolveCache.java:221) at com.intellij.openapi.util.RecursionManager$1.computePreventingRecursion(RecursionManager.java:111) at com.intellij.openapi.util.RecursionGuard.doPreventingRecursion(RecursionGuard.java:42) at com.intellij.openapi.util.RecursionManager.doPreventingRecursion(RecursionManager.java:68) at com.intellij.psi.impl.source.resolve.ResolveCache.resolve(ResolveCache.java:198) at com.intellij.psi.impl.source.resolve.ResolveCache.resolveWithCaching(ResolveCache.java:179) at com.intellij.psi.impl.PsiImplUtil.multiResolveImpl(PsiImplUtil.java:806) at com.intellij.psi.impl.PsiImplUtil.multiResolveImpl(PsiImplUtil.java:798) at com.intellij.psi.impl.PsiImplUtil.multiResolveImpl(PsiImplUtil.java:774) at com.intellij.psi.impl.source.PsiJavaCodeReferenceElementImpl.multiResolve(PsiJavaCodeReferenceElementImpl.java:423) at com.intellij.psi.impl.source.PsiJavaCodeReferenceElementImpl.advancedResolve(PsiJavaCodeReferenceElementImpl.java:417) at com.intellij.psi.impl.source.PsiJavaCodeReferenceElementImpl.resolve(PsiJavaCodeReferenceElementImpl.java:352) at com.intellij.psi.impl.source.resolve.ClassResolverProcessor.<init>(ClassResolverProcessor.java:55) at com.intellij.psi.impl.source.PsiJavaCodeReferenceElementImpl.resolve(PsiJavaCodeReferenceElementImpl.java:488) at com.intellij.psi.impl.source.PsiJavaCodeReferenceElementImpl.resolve(PsiJavaCodeReferenceElementImpl.java:522) at com.intellij.psi.impl.source.PsiJavaCodeReferenceElementImpl.access$100(PsiJavaCodeReferenceElementImpl.java:44) at com.intellij.psi.impl.source.PsiJavaCodeReferenceElementImpl$OurGenericsResolver.resolve(PsiJavaCodeReferenceElementImpl.java:375) at com.intellij.psi.impl.source.PsiJavaCodeReferenceElementImpl$OurGenericsResolver.resolve(PsiJavaCodeReferenceElementImpl.java:368) at com.intellij.psi.impl.source.resolve.ResolveCache.lambda$resolveWithCaching$2(ResolveCache.java:179) at com.intellij.openapi.util.Computable.get(Computable.java:17) at com.intellij.psi.impl.source.resolve.ResolveCache.lambda$loggingResolver$3(ResolveCache.java:221) at com.intellij.openapi.util.RecursionManager$1.computePreventingRecursion(RecursionManager.java:111) at com.intellij.openapi.util.RecursionGuard.doPreventingRecursion(RecursionGuard.java:42) at com.intellij.openapi.util.RecursionManager.doPreventingRecursion(RecursionManager.java:68) at com.intellij.psi.impl.source.resolve.ResolveCache.resolve(ResolveCache.java:198) at com.intellij.psi.impl.source.resolve.ResolveCache.resolveWithCaching(ResolveCache.java:179) at com.intellij.psi.impl.PsiImplUtil.multiResolveImpl(PsiImplUtil.java:806) at com.intellij.psi.impl.PsiImplUtil.multiResolveImpl(PsiImplUtil.java:798) at com.intellij.psi.impl.PsiImplUtil.multiResolveImpl(PsiImplUtil.java:774) at com.intellij.psi.impl.source.PsiJavaCodeReferenceElementImpl.multiResolve(PsiJavaCodeReferenceElementImpl.java:423) at com.intellij.psi.impl.source.PsiJavaCodeReferenceElementImpl.advancedResolve(PsiJavaCodeReferenceElementImpl.java:417) at com.intellij.psi.impl.source.PsiJavaCodeReferenceElementImpl.resolve(PsiJavaCodeReferenceElementImpl.java:352) at com.intellij.psi.impl.source.resolve.ClassResolverProcessor.<init>(ClassResolverProcessor.java:55) at com.intellij.psi.impl.source.PsiJavaCodeReferenceElementImpl.resolve(PsiJavaCodeReferenceElementImpl.java:488) at com.intellij.psi.impl.source.PsiJavaCodeReferenceElementImpl.resolve(PsiJavaCodeReferenceElementImpl.java:522) at com.intellij.psi.impl.source.PsiJavaCodeReferenceElementImpl.access$100(PsiJavaCodeReferenceElementImpl.java:44) at com.intellij.psi.impl.source.PsiJavaCodeReferenceElementImpl$OurGenericsResolver.resolve(PsiJavaCodeReferenceElementImpl.java:375) at com.intellij.psi.impl.source.PsiJavaCodeReferenceElementImpl$OurGenericsResolver.resolve(PsiJavaCodeReferenceElementImpl.java:368) at com.intellij.psi.impl.source.resolve.ResolveCache.lambda$resolveWithCaching$2(ResolveCache.java:179) at com.intellij.openapi.util.Computable.get(Computable.java:17) at com.intellij.psi.impl.source.resolve.ResolveCache.lambda$loggingResolver$3(ResolveCache.java:221) at com.intellij.openapi.util.RecursionManager$1.computePreventingRecursion(RecursionManager.java:111) at com.intellij.openapi.util.RecursionGuard.doPreventingRecursion(RecursionGuard.java:42) at com.intellij.openapi.util.RecursionManager.doPreventingRecursion(RecursionManager.java:68) at com.intellij.psi.impl.source.resolve.ResolveCache.resolve(ResolveCache.java:198) at com.intellij.psi.impl.source.resolve.ResolveCache.resolveWithCaching(ResolveCache.java:179) at com.intellij.psi.impl.PsiImplUtil.multiResolveImpl(PsiImplUtil.java:806) at com.intellij.psi.impl.PsiImplUtil.multiResolveImpl(PsiImplUtil.java:798) at com.intellij.psi.impl.PsiImplUtil.multiResolveImpl(PsiImplUtil.java:774) at com.intellij.psi.impl.source.PsiJavaCodeReferenceElementImpl.multiResolve(PsiJavaCodeReferenceElementImpl.java:423) at com.intellij.psi.impl.source.PsiJavaCodeReferenceElementImpl.advancedResolve(PsiJavaCodeReferenceElementImpl.java:417) at com.intellij.psi.impl.source.PsiJavaCodeReferenceElementImpl.resolve(PsiJavaCodeReferenceElementImpl.java:352) at com.intellij.psi.impl.source.resolve.ClassResolverProcessor.<init>(ClassResolverProcessor.java:55) at com.intellij.psi.impl.source.PsiJavaCodeReferenceElementImpl.resolve(PsiJavaCodeReferenceElementImpl.java:488) at com.intellij.psi.impl.source.PsiJavaCodeReferenceElementImpl.resolve(PsiJavaCodeReferenceElementImpl.java:522) at com.intellij.psi.impl.source.PsiJavaCodeReferenceElementImpl.access$100(PsiJavaCodeReferenceElementImpl.java:44) at com.intellij.psi.impl.source.PsiJavaCodeReferenceElementImpl$OurGenericsResolver.resolve(PsiJavaCodeReferenceElementImpl.java:375) at com.intellij.psi.impl.source.PsiJavaCodeReferenceElementImpl$OurGenericsResolver.resolve(PsiJavaCodeReferenceElementImpl.java:368) at com.intellij.psi.impl.source.resolve.ResolveCache.lambda$resolveWithCaching$2(ResolveCache.java:179) at com.intellij.openapi.util.Computable.get(Computable.java:17) at com.intellij.psi.impl.source.resolve.ResolveCache.lambda$loggingResolver$3(ResolveCache.java:221) at com.intellij.openapi.util.RecursionManager$1.computePreventingRecursion(RecursionManager.java:111) at com.intellij.openapi.util.RecursionGuard.doPreventingRecursion(RecursionGuard.java:42) at com.intellij.openapi.util.RecursionManager.doPreventingRecursion(RecursionManager.java:68) at com.intellij.psi.impl.source.resolve.ResolveCache.resolve(ResolveCache.java:198) at com.intellij.psi.impl.source.resolve.ResolveCache.resolveWithCaching(ResolveCache.java:179) at com.intellij.psi.impl.PsiImplUtil.multiResolveImpl(PsiImplUtil.java:806) at com.intellij.psi.impl.PsiImplUtil.multiResolveImpl(PsiImplUtil.java:798) at com.intellij.psi.impl.PsiImplUtil.multiResolveImpl(PsiImplUtil.java:774) at com.intellij.psi.impl.source.PsiJavaCodeReferenceElementImpl.multiResolve(PsiJavaCodeReferenceElementImpl.java:423) at com.intellij.psi.impl.source.PsiJavaCodeReferenceElementImpl.advancedResolve(PsiJavaCodeReferenceElementImpl.java:417) at com.intellij.psi.impl.source.PsiJavaCodeReferenceElementImpl.resolve(PsiJavaCodeReferenceElementImpl.java:352) at com.intellij.psi.impl.source.resolve.ClassResolverProcessor.<init>(ClassResolverProcessor.java:55) at com.intellij.psi.impl.source.PsiJavaCodeReferenceElementImpl.resolve(PsiJavaCodeReferenceElementImpl.java:488) at com.intellij.psi.impl.source.PsiJavaCodeReferenceElementImpl.resolve(PsiJavaCodeReferenceElementImpl.java:522) at com.intellij.psi.impl.source.PsiJavaCodeReferenceElementImpl.access$100(PsiJavaCodeReferenceElementImpl.java:44) at com.intellij.psi.impl.source.PsiJavaCodeReferenceElementImpl$OurGenericsResolver.resolve(PsiJavaCodeReferenceElementImpl.java:375) at com.intellij.psi.impl.source.PsiJavaCodeReferenceElementImpl$OurGenericsResolver.resolve(PsiJavaCodeReferenceElementImpl.java:368) at com.intellij.psi.impl.source.resolve.ResolveCache.lambda$resolveWithCaching$2(ResolveCache.java:179) at com.intellij.openapi.util.Computable.get(Computable.java:17) at com.intellij.psi.impl.source.resolve.ResolveCache.lambda$loggingResolver$3(ResolveCache.java:221) at com.intellij.openapi.util.RecursionManager$1.computePreventingRecursion(RecursionManager.java:111) at com.intellij.openapi.util.RecursionGuard.doPreventingRecursion(RecursionGuard.java:42) at com.intellij.openapi.util.RecursionManager.doPreventingRecursion(RecursionManager.java:68) at com.intellij.psi.impl.source.resolve.ResolveCache.resolve(ResolveCache.java:198) at com.intellij.psi.impl.source.resolve.ResolveCache.resolveWithCaching(ResolveCache.java:179) at com.intellij.psi.impl.PsiImplUtil.multiResolveImpl(PsiImplUtil.java:806) at com.intellij.psi.impl.PsiImplUtil.multiResolveImpl(PsiImplUtil.java:798) at com.intellij.psi.impl.PsiImplUtil.multiResolveImpl(PsiImplUtil.java:774) at com.intellij.psi.impl.source.PsiJavaCodeReferenceElementImpl.multiResolve(PsiJavaCodeReferenceElementImpl.java:423) at com.intellij.psi.impl.source.PsiJavaCodeReferenceElementImpl.advancedResolve(PsiJavaCodeReferenceElementImpl.java:417) at com.intellij.psi.impl.source.PsiJavaCodeReferenceElementImpl.resolve(PsiJavaCodeReferenceElementImpl.java:352) at com.intellij.psi.impl.source.resolve.ClassResolverProcessor.<init>(ClassResolverProcessor.java:55) at com.intellij.psi.impl.source.PsiJavaCodeReferenceElementImpl.resolve(PsiJavaCodeReferenceElementImpl.java:488) at com.intellij.psi.impl.source.PsiJavaCodeReferenceElementImpl.access$100(PsiJavaCodeReferenceElementImpl.java:44) at com.intellij.psi.impl.source.PsiJavaCodeReferenceElementImpl$OurGenericsResolver.resolve(PsiJavaCodeReferenceElementImpl.java:375) at com.intellij.psi.impl.source.PsiJavaCodeReferenceElementImpl$OurGenericsResolver.resolve(PsiJavaCodeReferenceElementImpl.java:368) at com.intellij.psi.impl.source.resolve.ResolveCache.lambda$resolveWithCaching$2(ResolveCache.java:179) at com.intellij.openapi.util.Computable.get(Computable.java:17) at com.intellij.psi.impl.source.resolve.ResolveCache.lambda$loggingResolver$3(ResolveCache.java:221) at com.intellij.openapi.util.RecursionManager$1.computePreventingRecursion(RecursionManager.java:111) at com.intellij.openapi.util.RecursionGuard.doPreventingRecursion(RecursionGuard.java:42) at com.intellij.openapi.util.RecursionManager.doPreventingRecursion(RecursionManager.java:68) at com.intellij.psi.impl.source.resolve.ResolveCache.resolve(ResolveCache.java:198) at com.intellij.psi.impl.source.resolve.ResolveCache.resolveWithCaching(ResolveCache.java:179) at com.intellij.psi.impl.PsiImplUtil.multiResolveImpl(PsiImplUtil.java:806) at com.intellij.psi.impl.PsiImplUtil.multiResolveImpl(PsiImplUtil.java:798) at com.intellij.psi.impl.PsiImplUtil.multiResolveImpl(PsiImplUtil.java:774) at com.intellij.psi.impl.source.PsiJavaCodeReferenceElementImpl.multiResolve(PsiJavaCodeReferenceElementImpl.java:423) at com.intellij.psi.impl.source.PsiJavaCodeReferenceElementImpl.advancedResolve(PsiJavaCodeReferenceElementImpl.java:417) at com.intellij.psi.impl.source.PsiClassReferenceType.resolveGenerics(PsiClassReferenceType.java:177) at in.oneton.idea.spring.assistant.plugin.misc.PsiCustomUtil.isValidType(PsiCustomUtil.java:393) at in.oneton.idea.spring.assistant.plugin.misc.PsiCustomUtil.safeGetValidType(PsiCustomUtil.java:106) at in.oneton.idea.spring.assistant.plugin.suggestion.metadata.MetadataNonPropertySuggestionNode.updateGroupType(MetadataNonPropertySuggestionNode.java:544) at in.oneton.idea.spring.assistant.plugin.suggestion.metadata.MetadataNonPropertySuggestionNode.setGroup(MetadataNonPropertySuggestionNode.java:445) at in.oneton.idea.spring.assistant.plugin.suggestion.service.SuggestionServiceImpl.addGroupsToIndex(SuggestionServiceImpl.java:578) at in.oneton.idea.spring.assistant.plugin.suggestion.service.SuggestionServiceImpl.buildMetadataHierarchy(SuggestionServiceImpl.java:459) at in.oneton.idea.spring.assistant.plugin.suggestion.service.SuggestionServiceImpl.processContainers(SuggestionServiceImpl.java:412) at in.oneton.idea.spring.assistant.plugin.suggestion.service.SuggestionServiceImpl.reindexModule(SuggestionServiceImpl.java:449) at in.oneton.idea.spring.assistant.plugin.suggestion.service.SuggestionServiceImpl.lambda$null$2(SuggestionServiceImpl.java:121) at com.intellij.openapi.application.impl.ApplicationImpl.runReadAction(ApplicationImpl.java:860) at in.oneton.idea.spring.assistant.plugin.suggestion.service.SuggestionServiceImpl.lambda$reIndex$3(SuggestionServiceImpl.java:110) at com.intellij.util.RunnableCallable.call(RunnableCallable.java:20) at com.intellij.util.RunnableCallable.call(RunnableCallable.java:11) at com.intellij.openapi.application.impl.ApplicationImpl$1.call(ApplicationImpl.java:270) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:264) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128) at java.base/java.util.concurrent.ThreadPoolExecutor$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)

[eltonsandre]

Hello guys,

I was having the same problem, unfortunately, the project appears to be no longer being maintained and / or receiving updates. So, I decided to explore and realized that, for new versions of the IDE, some API features were discontinued and some removed, some dependencies were also built in JDK 11. As I wanted to continue using the plugin, I forked and fixed the bug and refactored it for new versions of Intellij CE.

I hope it helps! please give me feedback.

plugin with fix -> intellij-spring-assistant-1.0.0.zip

https://github.com/eltonsandre/intellij-spring-assistant/blob/main/CHANGELOG.md

[kcotzen]

Hi guys, same problem here: Version 2020.3 Community

“No suggestions” message in every yml file.

(looks like this project was abandoned 😦 )