android - Proguard第一次运行 "gradlew build"时找不到引用的类

Question

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。

当我第一次运行“gradlew build”时，由于 proguard 找不到引用的类，构建将中断。但是，当我再次运行“gradlew build”时，构建可以成功完成。

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

报错信息如下:

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
....

我正在使用 gradle 0.7。还有我的 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:4.4.0@aar'
}

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')
    }
}

我上传了my project here .

我做错了什么吗？还是gradle的bug？

Answer 1

这是 Android Gradle 插件版本 0.7.0 和 0.7.1 中的一个问题:issue 63944和 issue 64039 .