Clicking on Gradle (on the right side bar) ->.

executeActions ( ExecuteActionsTaskExecuter.

executeAction ( ExecuteActionsTaskExecuter. DefaultBuildOperationExecutor$RunnableBuildOperationWorker. callCompiler$ kotlin_gradle_plugin ( Tasks. throwGradleExceptionIfError ( tasksUtils. DefaultTaskPlanExecutor$TaskExecutorWorker. executeWithTask ( DefaultTaskExecutionPlan. DefaultTaskPlanExecutor$TaskExecutorWorker$ 1. DefaultTaskGraphExecuter$EventFiringTaskWorker$ 1. execute ( ResolveTaskArtifactStateTaskExecuter. execute ( SkipEmptySourceFilesTaskExecuter. execute ( ResolveTaskOutputCachingStateExecuter.

execute ( OutputDirector圜reatingTaskExecuter. TaskExecutionException : Execution failed for task ':app:compileDebugKotlin'. It looks like a bug with kapt is gone on kotlin version 1.2.+) Solution 2: It seems that the previous version of the kapt generator is bugs free. I removed apply plugin: 'kotlin-kapt' and added kapt section of adle. Note The kapt3 can be a source of such bugs. Wait until the inspection is over and then correct errors in 'General' section and possible ones in other sections. In the android studio, try Analyze -> Inspect Code -> Whole project. Solution 2 Click on Gradle (on the right side bar) then under :app choose assembleDebug (or assembleYourFlavor if you use flavors). Pay attention that both modes can be useful for investigation of the problem's reason. In new Android Studio 3.1.+, you can enable/disable console log details by pressing 'Toggle View' on 'Build' tab. Read log and try to found the answer of what went wrong. Solution 1 Possible solution is to go to File -> Settings -> Compiler -> and add '-stacktrace -debug' to Command-line Options. I hope that it is a temporary compiler bug. I got this error twice during one day and decided to share my experience. That's why I double checked all changes that I did and found that I had changed somehow method signature in the interface but had not changed it in class that implements it. It looked like something in my code was wrong but the compiler could not found the issue. It has happened nor after some library was connected neither any changes in gradle. I got such error after a simple try of code refactoring.

I have java 51 and java 60