报错为:Error:Gradle: Execution failed for task ':app:transformClassesWithDexForDebug'.
> com.android.build.api.transform.TransformException: com.android.ide.common.process.ProcessException: org.gradle.process.internal.ExecException: Process 'command 'C:\Program Files\Java\jdk1.8.0_25\bin\java.exe'' finished with non-zero exit value 1
jar是eclipse里写的,已经最简单的结构了,不会有重复包名,但是仍然还是这样报错,求大神解答,怎么办