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’])

}