How to fix the error"execution failed for task ':app:transformclasseswithdexfordebug'?

Question

Hello everyone. Our program works successfully in Android Studio's development mode, but when we switch to release mode, it crashes and generates as "execution failed for task ':app:transformclasseswithdexfordebug'"the following error:

**FAILURE: Build failed with an exception.**

> Execution failed for task ‘:app:transformClassesWithDexForRelease’.

com.android.build.api.transform.TransformException: com.android.ide.common.process.ProcessException: java.util.concurrent.ExecutionException: 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 1

This is my big test, it is important for me. If you can fix it, please help me. Thank you very much.

lyytutoria · Accepted Answer

The cause: Class file name duplicate. The solution: You can correct this problem by adding a few lines of code to the "gradle" and "local.properties" files. In local.properties,

org.gradle.jvmargs=-XX\:MaxHeapSize\=512m -Xmx512m

and, in gradle file, you will fix this error if you perform this steps:

defaultConfig {

applicationId “yourProjectPackage”

minSdkVersion 15

versionCode 1

versionName “1.0”

targetSdkVersion 23

multiDexEnabled true //important

}

I hope you fix this error successful.

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How to fix the error”execution failed for task ‘:app:transformclasseswithdexfordebug’?