Gradle生成时发出的问题在APK META-INF / LICENSE中复制的重复文件 [英] Issue while gradle build Duplicate files copied in APK META-INF/LICENSE

问题描述

 任务`：app：transformResourcesWithMergeJavaResForDebug`的执行失败。 
 com.android.build.api.transform.TransformException：com.android.builder.packaging.DuplicateFileException：在APK中拷贝的重复文件META-INF / LICENSE 
 File1：C：\Users\admin \.gradle\caches\modules-2\files-2.1\com.fasterxml.jackson.core\jackson-annotations\2.2.2\285cb9c666f0f0f3dd8a1be04e1f457eb7b15113\jackson的注解 -  2.2.2.jar 
 File2：C：\ Users \admin\.gradle\caches\modules-2\files-2.1\com.fasterxml.jackson.core\jackson-core\2.2.2 \d20be6a5ddd6f8cfd36ebf6dea329873a1c41f1b\\jackson-core-2.2.2.jar 
 File3：C：\ Users \admin\.gradle\caches\modules-2\files-2.1\com.fasterxml .jackson.core \ jackson-databind\2.2.2\3c8f6018eaa72d43b261181e801e6f8676c16ef6\jackson-databind-2.2.2.jar 
  

我试过使用

  packagingOptions {
 exclude'META-I NF / LICENSE.txt'
排除'META-INF / LICENSE'
排除'META-INF / license.txt'
} 
  pre> 
 
 
这个工程，但我不想排除许可证，请告诉我如何避免使用这个
  apply plugin：'com.android.application'
 
 android {
 compileSdkVersion 24 
 buildToolsVersion24.0.2 
 
 defaultConfig {
 minSdkVersion 16 
 targetSdkVersion 24 
 versionCode 1 
 versionName1.0
} 
 buildTypes {
 $ {
 minifyEnabled false 
 proguardFiles getDefaultProguardFile（'proguard-android.txt'），'proguard-rules.pro'
} 
} 
 
 } 
 $ b $ dependencies {
 compile fileTree（dir：'libs'，include：['* .jar']）
 testCompile'junit：junit：4.12'
 
编译'com.android.support:appcompat-v7:24 .2.1'
 compile'c​​om.android.support:support-v4:24.2.1'
 compile'c​​om.android.support:design:24.2.1'
 
 compile 'com.google.firebase：firebase-core：9.4.0'
 compile'c​​om.google.firebase：firebase-storage：9.4.0'
 compile'c​​om.google.firebase：firebase-messaging ：9.4.0'
 compile'c​​om.google.firebase：firebase-auth：9.4.0'
 compile'c​​om.firebase：firebase-client-android：2.5.2'
 
 compile'c​​om.squareup.retrofit2：retrofit：2.1.0'
 compile'c​​om.squareup.okhttp3：okhttp：3.4.1'
 compile'c​​om.squareup.retrofit：converter-gson ：2.0.0-beta2'
} 
  
这是我的gradle，请让我知道哪些依赖是造成这个问题的解决方案
 您正在混合使用Firebase客户端的版本，你更多的问题。
 
 
 
使用单个版本对于所有Firebase依赖项（例如9.4.0），都可以使用它： 
 
 
  compile'c​​om.google.firebase：firebase-core：9.4 .0'
 compile'c​​om.google.firebase：firebase-storage：9.4.0'
 compile'c​​om.google.firebase：firebase-messaging：9.4.0'
 compile'c​​om .google.firebase：firebase-auth：9.4.0'
 compile'c​​om.google.firebase：firebase-database：9.4.0'// this this changed 
  
 
Execution failed for task `:app:transformResourcesWithMergeJavaResForDebug`.
 com.android.build.api.transform.TransformException: com.android.builder.packaging.DuplicateFileException: Duplicate files copied in APK META-INF/LICENSE
    File1: C:\Users\admin\.gradle\caches\modules-2\files-2.1\com.fasterxml.jackson.core\jackson-annotations\2.2.2\285cb9c666f0f0f3dd8a1be04e1f457eb7b15113\jackson-annotations-2.2.2.jar
    File2: C:\Users\admin\.gradle\caches\modules-2\files-2.1\com.fasterxml.jackson.core\jackson-core\2.2.2\d20be6a5ddd6f8cfd36ebf6dea329873a1c41f1b\jackson-core-2.2.2.jar
    File3: C:\Users\admin\.gradle\caches\modules-2\files-2.1\com.fasterxml.jackson.core\jackson-databind\2.2.2\3c8f6018eaa72d43b261181e801e6f8676c16ef6\jackson-databind-2.2.2.jar
I have tried using 
packagingOptions {
    exclude 'META-INF/LICENSE.txt'
    exclude 'META-INF/LICENSE'
    exclude 'META-INF/license.txt'
}
and this works but I don't want to exclude the licence please tell how I can avoid it with out using this
apply plugin: 'com.android.application'

android {
    compileSdkVersion 24
    buildToolsVersion "24.0.2"

    defaultConfig {
        minSdkVersion 16
        targetSdkVersion 24
        versionCode 1
        versionName "1.0"
    }
    buildTypes {
         release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }

}

dependencies {
    compile fileTree(dir: 'libs', include: ['*.jar'])
    testCompile 'junit:junit:4.12'

    compile 'com.android.support:appcompat-v7:24.2.1'
    compile 'com.android.support:support-v4:24.2.1'
    compile 'com.android.support:design:24.2.1'

    compile 'com.google.firebase:firebase-core:9.4.0'
    compile 'com.google.firebase:firebase-storage:9.4.0'
    compile 'com.google.firebase:firebase-messaging:9.4.0'
    compile 'com.google.firebase:firebase-auth:9.4.0'
    compile 'com.firebase:firebase-client-android:2.5.2'

    compile 'com.squareup.retrofit2:retrofit:2.1.0'
    compile 'com.squareup.okhttp3:okhttp:3.4.1'
    compile 'com.squareup.retrofit:converter-gson:2.0.0-beta2'
}
here is my gradle which has many dependencies so please let me know which dependencies are causing the issue
解决方案
You're mixing versions of the Firebase client, which is guaranteed to give you more problems down the line.


Use a single version for all your Firebase dependencies, such as 9.4.0:
compile 'com.google.firebase:firebase-core:9.4.0'
compile 'com.google.firebase:firebase-storage:9.4.0'
compile 'com.google.firebase:firebase-messaging:9.4.0'
compile 'com.google.firebase:firebase-auth:9.4.0'
compile 'com.google.firebase:firebase-database:9.4.0' // this one changed


                        
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