错误：com.android.builder.packaging.DuplicateFileException: Duplicate files copied

    File2: C:\Users\guoxw\.gradle\caches\modules-2\files-2.1\org.jsoup\jsoup\1.10.3\b842f960942503cf1abbcc8c173a7f2c19d43726\jsoup-1.10.3.jarError:Execution failed for task ':app:transformResourcesWithMergeJavaResForDebug'.
   > com.android.build.api.transform.TransformException: com.android.builder.packaging.DuplicateFileException: Duplicate files copied in APK org/jsoup/nodes/entities-xhtml.properties
    File1: D:\CooKara\cookaraclient\app\libs\jsoup-1.10.3.jar
    File2: C:\Users\guoxw\.gradle\caches\modules-2\files-2.1\org.jsoup\jsoup\1.10.3\b842f960942503cf1abbcc8c173a7f2c19d43726\jsoup-1.10.3.jar

1:错误原因： 在as的libs中加入了jsoup-1.10.3.jar  包，而as本身带有jsoup.jar包，产生冲突

2.删除了libs下的jsoup包