当第一次运行“gradlew build”时，Proguard找不到引用类

问题描述：

我正在使用gradle构建我的android项目并遇到了一个相当奇怪的问题。当第一次运行“gradlew build”时，Proguard找不到引用类

当我第一次运行“gradlew build”时，build会因为proguard找不到引用类而中断。但是，当我再次运行“gradlew build”时，build可以成功完成。

D:\project\abs-demo>gradlew clean 
D:\project\abs-demo>gradlew build  // first time, fail 
D:\project\abs-demo>gradlew build  // second time, succeed

错误消息如下：

Warning: com.actionbarsherlock.sample.demos.ActionItems: can't find superclass or interface com.actionbarsherlock.app.SherlockActivity 
Warning: com.actionbarsherlock.sample.demos.ActionModes: can't find superclass or interface com.actionbarsherlock.app.SherlockActivity 
Warning: com.actionbarsherlock.sample.demos.ActionModes$AnActionModeOfEpicProportions: can't find superclass or interface com.actionbarsherlock.view.ActionMode$Callback 
Warning: com.actionbarsherlock.sample.demos.ActionModesNoActionBar: can't find superclass or interface com.actionbarsherlock.app.SherlockActivity 
Warning: com.actionbarsherlock.sample.demos.ActionModesNoActionBar$AnActionModeOfEpicProportions: can't find superclass or interface com.actionbarsherlock.view.ActionMode$Callback 
Warning: com.actionbarsherlock.sample.demos.ActionProviders: can't find superclass or interface com.actionbarsherlock.app.SherlockActivity 
Warning: com.actionbarsherlock.sample.demos.ActionProviders$SettingsActionProvider: can't find superclass or interface com.actionbarsherlock.view.ActionProvider 
....

我使用的是0.7的gradle。而我build.gralde：

apply plugin: 'android' 

repositories { 
    mavenCentral() 
} 

dependencies { 
    compile "com.android.support:support-v4:18.0.+" 
    compile fileTree(dir: 'libs', include: '*.jar') 
    compile 'com.actionbarsherlock:actionbarsherlock:[email protected]' 
} 

android { 
    compileSdkVersion 19 
    buildToolsVersion "18.0.0" 

    buildTypes { 
     release { 
      runProguard true 
      proguardFile getDefaultProguardFile('proguard-android.txt') 
      proguardFile 'proguard-project.txt' 
     } 
    } 

    sourceSets { 
     main { 
      manifest.srcFile 'AndroidManifest.xml' 
      java.srcDirs = ['src'] 
      resources.srcDirs = ['src'] 
      aidl.srcDirs = ['src'] 
      renderscript.srcDirs = ['src'] 
      res.srcDirs = ['res'] 
      assets.srcDirs = ['assets'] 
     } 

     // Move the tests to tests/java, tests/res, etc... 
     instrumentTest.setRoot('tests') 

     // Move the build types to build-types/<type> 
     // For instance, build-types/debug/java, build-types/debug/AndroidManifest.xml, ... 
     // This moves them out of them default location under src/<type>/... which would 
     // conflict with src/ being used by the main source set. 
     // Adding new build types or product flavors should be accompanied 
     // by a similar customization. 
     debug.setRoot('build-types/debug') 
     release.setRoot('build-types/release') 
    } 
}

我上传my project here。

我做错了什么？或者它是一个gradle的bug？

从路径使用gradle时，我有同样的问题。第一次构建失败，第二次没事。所以：如果按顺序执行 “gradle这个干净assembleDebug” “gradle这个干净的构建” 正常工作:( – Harri

听起来Proguard的任务运行太早，由* *以前建造调用生成的类工作 –

。你可以添加一些细节......你使用哪个版本的Gradle插件？lib是否有自己的build.gradle？PullToRefresh是一个源文件还是一个库jar？我似乎无法重现该问题。 –

答

这是Android Gradle插件版本0.7.0和0.7.1中的问题：issue 63944和issue 64039。

当第一次运行“gradlew build”时，Proguard找不到引用类

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