app:transformClassesWithJarMergingForRelease

项目接入友盟统计时，导入了两个jar包，一个是umeng-analytics-6.0.1，一个是utdid4all-1.04.jar，项目能正常运行，可是当Generate Signed APK时，发现了如下问题：java Error:Execution failed for task ':app:transformClassesWithJarMergingForRelease'. > com.a

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