解决：Execution failed for task ':app:transformResourcesWithMergeJavaResForDebug'.

错误描述 今天在Android Studio项目中加入了jackson的开发包，编译运行时候，引发了如下的错误：

Error:Execution failed for task ‘:app:transformResourcesWithMergeJavaResForDebug’.

com.android.build.api.transform.TransformException: com.android.builder.packaging.DuplicateFileException:

Duplicate files copied in APK META-INF/NOTICE File1: D:\Code\XTCKuwoWatch\app\libs\jackson-core-2.4.4.jar File2: D:\Code\XTCKuwoWatch\app\libs\jackson-databind-2.4.4.jar 错误截图如下所示：

错误截图

解决办法 在build.gradle文件中加入下面这段代码

packagingOptions { exclude ‘META-INF/LICENSE’ exclude ‘META-INF/NOTICE’ } 没修改前的build.gradle文件 apply plugin: ‘com.android.application’

android { compileSdkVersion 22 buildToolsVersion “22.0.1”

defaultConfig { applicationId "com.oyp.csdn" minSdkVersion 16 targetSdkVersion 23 versionCode 1 versionName "1.0" } buildTypes { release { minifyEnabled false proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro' } }

}

dependencies { compile fileTree(dir: ‘libs’, include: [‘*.jar’]) } 修改后的build.gradle文件 apply plugin: ‘com.android.application’

android { compileSdkVersion 22 buildToolsVersion “22.0.1”

packagingOptions { exclude 'META-INF/LICENSE' exclude 'META-INF/NOTICE' } defaultConfig { applicationId "com.oyp.csdn" minSdkVersion 16 targetSdkVersion 23 versionCode 1 versionName "1.0" } buildTypes { release { minifyEnabled false proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro' } }

}

dependencies { compile fileTree(dir: ‘libs’, include: [‘*.jar’]) }