More than one file was found with OS independent path 'META-INF/DEPENDENCIES'

今天在Android Studio中编译工程的时候，遇见了一个奇怪的问题，报错如下：

Error:Execution failed for task ‘:app:transformResourcesWithMergeJavaResForDebug’.
More than one file was found with OS independent path ‘META-INF/DEPENDENCIES’

大概意思就是工程生成了不止一个META-INF/DEPENDENCIES文件，看起来是因为多个 jar 包里包含了同样的文件（DEPENDENCIES.txt），导致打包时因为担心相互覆盖问题而提示出错

在网上很容易就找到了解决方法，即在报该编译错误的module的build.gradle中加入如下配置项，排除掉中间生成的DEPENDENCIES.txt文件

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

添加后的部分build.gradle文件如下：

android {
    compileSdkVersion 26
    defaultConfig {
        applicationId "com.liuning.bitcoin"
        minSdkVersion 21
        targetSdkVersion 26
        versionCode 1
        versionName "1.0"
        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
    packagingOptions {
        exclude 'META-INF/DEPENDENCIES'
        exclude 'META-INF/NOTICE'
        exclude 'META-INF/LICENSE'
        exclude 'META-INF/LICENSE.txt'
        exclude 'META-INF/NOTICE.txt'
    }
}

转载：https://blog.csdn.net/realliuning/article/details/80010591