error while generating android signed app

Question

i am getting this error while generating android signed app

Error:Execution failed for task ':app:dexRelease'.
> com.android.ide.common.process.ProcessException: org.gradle.process.internal.ExecException: Process 'command '/Library/Java/JavaVirtualMachines/jdk1.8.0_65.jdk/Contents/Home/bin/java'' finished with non-zero exit value 2

this is my files

Answer 1

I had the same error once. For me increasing the Java maximum heap size solved the error. Try adding

android {
    ...
    dexOptions {
       javaMaxHeapSize "4g"
    }
    ...
}

to your build.gradle file.

Another reason for this error can be that your app is to big and you need to enable multidex support. Please see Building Apps with Over 65K Methods