Gradle cannot find JAVA_HOME @Linux Mint

Question

I use Android Studio und if i run a app, Gradle cannot find JAVA_HOME

• What went wrong: Execution failed for task ':app:compileDebugJava'. Cannot find System Java Compiler. Ensure that you have installed a JDK (not just a JRE) and configured your JAVA_HOME system variable to point to the according directory.

But JAVA_HOME is set:

alexader@alexander-mint ~ $ echo $JAVA_HOME

returns

/usr/lib/jvm/java-8-oracle

What do i wrong?

Answer 1

Since your JAVA_HOME seems to work well, have a look at your Project Structure (Shortcut: Ctrl + Alt + Shift + S). Here you can define the location of your JDK. Sometimes this path is "wrong".