关于android studio 的FAILURE: Build failed with an exception解决办法

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':process XXXX'.
> com.android.ide.common.process.ProcessException: org.gradle.process.internal.ExecException:
Process 'command '/home/ android-studio/sdk/build-tools/21.1.1/aapt'' finished with non-zero exit value 1

* Try:

Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output.

红色代表是你的工程。

这问题特别SB。。。解决办法去android studio sdk manager那里把build-tools/21.1.1升级一下就好了。。。不知道为啥gradle同个版本要经常升级～