Android Studio中"在APK-META-INF/license.txt中复制的重复lib文件"错误

Question

我在项目1中使用2以下的lib.spring-core-3.1.0.RELEASE.jar 2. spring-web-3.1.0.RELEASE.jar

但android studio正在考虑上面的lib重复输入并在打包时给出错误.

---

Error:duplicate files during packaging of APK E:\Code\iDoc\app\build\outputs\apk\app-debug-unaligned.apk
    Path in archive: META-INF/license.txt
    Origin 1: E:\Code\iDoc\app\libs\spring-core-3.1.0.RELEASE.jar
    Origin 2: E:\Code\iDoc\app\libs\spring-web-3.1.0.RELEASE.jar
You can ignore those files in your build.gradle:
    android {
      packagingOptions {
        exclude 'META-INF/license.txt'
      }
    }
------------------------------------------------------------

有人遇到过类似的问题吗？

请为此错误建议一些解决方法.

Answer 1

转到您的build.gradle文件并添加以下行:

 packagingOptions {
    exclude 'META-INF/license.txt'
  }

在我的情况下,我不得不像这样添加:

apply plugin: 'com.android.library'    
android {
    compileSdkVersion 21
    buildToolsVersion "21.1.2"

    defaultConfig {
        minSdkVersion 14
        targetSdkVersion 21
        versionCode 1
        versionName "1.0"
    }
    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'
    }
}
dependencies {
    compile fileTree(include: ['*.jar'], dir: 'libs')
    compile 'com.android.support:appcompat-v7:+'
    compile 'com.google.android.gms:play-services:6.5.87'
    compile 'com.squareup.picasso:picasso:2.5.2'
    compile 'com.mcxiaoke.volley:library:1.0.15'
    compile 'com.google.code.gson:gson:2.2.4'
    compile "org.apache.httpcomponents:httpcore:4.4.1"
    compile "org.apache.httpcomponents:httpmime:4.3.6"


}

注意:

1. 元文件不会影响应用程序的任何编程功能.元文件基本上包含文本信息,如开源库的法律通知,许可证等.排除它不会影响任何事情.

2. 当我们使用多个第三方开源库时,有时2个或更多项目具有相同的命名文本文件(例如:License.txt或Notice.txt或dependencies.txt).这会在构建期间导致冲突.在那一刻,我们强大的android工作室建议我们排除那些冲突的元文件.