MAC编译 .Ap文件创建失败怎么回事呢 求解答

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1. MAC编译 Ap文件创建失败怎么回事呢 求解答 如果createAP false编译通过 createAP true就失败

FAILURE: Build failed with an exception.

• What went wrong: Execution failed for task ':app:createDebugAp'.

createAp exception Executing task ':app:createDebugAp' (up-to-date check took 0.0 secs) due to: Task has not declared any outputs.任务尚未声明任何输出。 这里需要声明什么吗怎么配置呢

环境 gradleVersion:4.1 androidPluginVersion:3.0.1 buildToolsVersion:29.0.2 compileSdkVersion:android-29 atlasPluginVersion:3.0.1-rc88