Error:Execution failed for task ':app:dexDebug'.
> com.android.ide.common.process.ProcessException: org.gradle.process.internal.ExecException:
Process 'command 'C:\Program Files\Java\jdk1.8.0_60\bin\java.exe'' finished with non-zero exit value 2 (或1)
dexOptions {
javaMaxHeapSize "1g"
<!-- Java.exe finished with non-zero exit value 1
設置的值不要大於你機器可用的內存，
如：Windwos10 4GB 此處設置為 1g-->
}