Error:Execution failed for task ':app:packageDebug'.> Duplicate files copied in APK META-INF/LICENSE.txt  	File 1: /Users/weichunsheng/.gradle/caches/modules-2/files-2.1/commons-cli/commons-cli/1.2/2bf96b7aa8b611c177d329452af1dc933e14501c/commons-cli-1.2.jar  	File 2: /Users/weichunsheng/Documents/android_app/app/libs/fastjson-1.2.6.jarError:Execution failed for task ':app:packageDebug'.> Duplicate files copied in APK META-INF/NOTICE.txt  	File 1: /Users/weichunsheng/.gradle/caches/modules-2/files-2.1/commons-cli/commons-cli/1.2/2bf96b7aa8b611c177d329452af1dc933e14501c/commons-cli-1.2.jar  	File 2: /Users/weichunsheng/Documents/android_app/app/libs/fastjson-1.2.6.jar

　　

错误日志如上：

解决方案如下：

 

android {    packagingOptions {        exclude 'META-INF/DEPENDENCIES'        exclude 'META-INF/NOTICE'        exclude 'META-INF/LICENSE'        exclude 'META-INF/LICENSE.txt'        exclude 'META-INF/NOTICE.txt'    }    // ...}