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Andrea Maglie


Software Engineer, guitar player. Founder of GDG (Google Developer Group) Venice.


OutOfMemoryError while compiling Android projects

Have you ever got a OutOfMemoryError while compiling an Android project, just like this?

:app:dexDebug
Unknown source file : Uncaught translation error: java.util.concurrent.ExecutionException: java.lang.OutOfMemoryError: Java heap space
Unknown source file : 1 error; aborting

:app:dexDebug FAILED

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':app:dexDebug'.
> com.android.ide.common.process.ProcessException: org.gradle.process.internal.ExecException: Process 'command '/Library/Java/JavaVirtualMachines/jdk1.8.0_45.jdk/Contents/Home/bin/java'' finished with non-zero exit value 1

The quick solution is: add javaMaxHeapSize to dexOptions in your build.gradle, adjusting the value on your needs.

android {
	...

    dexOptions {
        javaMaxHeapSize "2g"
    }

    ...
}
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