安卓 gradle 构建 : duplicate files during packaging of APK LICENSE. txt

Question

我正在尝试使用以下 gradle 构建文件构建 Android 测试

buildscript {
    repositories {
        mavenCentral()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:0.4.2'
    }

apply plugin: 'android-library'

repositories {
  mavenCentral()
}

dependencies {
    instrumentTestCompile "junit:junit:4.+"        
}

android {
    compileSdkVersion 17
    buildToolsVersion "17.0.0"

    instrumentTest.setRoot('tests')
    instrumentTest {
      java.srcDirs = ['tests/src']
      res.srcDirs = ['tests/res']
      assets.srcDirs = ['tests/assets']
      resources.srcDirs = ['tests/src']
        }        
    }
}

运行时出现以下错误:

Error: duplicate files during packaging of APK ... Path in archive: LICENSE.txt Origin 1: ....gradle/caches/artifacts-24/filestore/junit/junit/4.11/jar/4e031bb61df09069aeb2bffb4019e7a5034a4ee0/junit-4.11.jar Origin 2: ....gradle/caches/artifacts-24/filestore/org.hamcrest/hamcrest-core/1.3/jar/42a25dc3219429f0e5d060061f71acb49bf010a0/hamcrest-core-1.3.jar :packageTest FAILED

FAILURE: Build failed with an exception.

• What went wrong: Execution failed for task ':packageTest'. Duplicate files at the same path inside the APK: LICENSE.txt

Answer 1

Junit v4.5 已将所有必需的依赖项打包到 JUnit jar 中。因此不需要 hamcrest.jar，也不会产生双重 LICENSE.txt 文件。

只需将依赖项更改为:

instrumentTestCompile "junit:junit:4.5+"

基本问题仍然存在 - android 不接受在其构建树中具有相同名称的两个文件。不过，这是一个很好的解决方法。