android - Execution failed for task ': app: compileDebugJavaWithJavac'


New to Android Studio + Gradle.

I'm trying to run my app from the command line using:

gradlew installDebug

The app gets installed on my device only when I execute that command when Studio just got opened and do that initial syncing/building thing.

Whenever I modified my code, and try to run that command again, the build fails and shows this error:

Execution failed for task ':app:compileDebugJavaWithJavac'
> Could not find tools.jar

How do I solve this problem? Thanks in advance.

Setting the JAVA_HOME variable to C:\Program Files\Java\jdkX.XX worked for me.

It was previously set to the JRE directory for some reason.