导入httpClient.jar包遇到的坑

最新推荐文章于 2025-11-23 12:34:32 发布

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博客讲述了在Android项目中导入httpClient.jar包时遇到的错误，即Execution failed for task ':app:transformResourcesWithMergeJavaResForDebug'，原因是DuplicateFileException。解决方案是在build.gradle文件中添加packagingOptions来排除重复的META-INF/LICENSE文件。

错误日志：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/LICENSE

解决方案

在当前项目 build.gradle文件添加packagingOptions

android {

    useLibrary 'org.apache.http.legacy'

    compileSdkVersion 24
    buildToolsVersion "24.0.0"

    defaultConfig {
        applicationId "com.ican.subjects"
        minSdkVersion 15
        targetSdkVersion 23
        versionCode 1
        versionName "1.0"
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }

    packagingOptions {
        exclude 'META-INF/DEPENDENCIES.txt'
        exclude 'META-INF/LICENSE.txt'
        exclude 'META-INF/NOTICE.txt'
        exclude 'META-INF/NOTICE'
        exclude 'META-INF/LICENSE'
        exclude 'META-INF/DEPENDENCIES'
        exclude 'META-INF/notice.txt'
        exclude 'META-INF/license.txt'
        exclude 'META-INF/dependencies.txt'
        exclude 'META-INF/LGPL2.1'
    }

}