Error:Execution failed for task ':app:transformResourcesWithMergeJavaResForDebug'包名冲突

Error:Execution failed for task ':app:transformResourcesWithMergeJavaResForDebug'.
> com.android.build.api.transform.TransformException: com.android.builder.packaging.DuplicateFileException: Duplicate files copied in APKMETA-INF/rxjava.properties
File1: C:\Users\Administrator\.gradle\caches\modules-2\files-2.1\io.reactivex\rxjava\1.3.0\af000bec2036a2a9d07197c4b03b8966bfc60b03\rxjava-1.3.0.jar
File2: C:\Users\Administrator\.gradle\caches\modules-2\files-2.1\io.reactivex.rxjava2\rxjava\2.0.3\d2f725668bd22e21170381b23f8fbdf72c69d886\rxjava-2.0.3.jar 

在build.gradle文件中加入以下代码即可

packagingOptions {    exclude 'META-INF/rxjava.properties'}

修改之后如下

android {    compileSdkVersion 26    buildToolsVersion "26.0.2"    packagingOptions {        exclude 'META-INF/rxjava.properties'    }

..........

}