19:00:47: Executing external task 'installDebug'...

FAILURE: Build failed with an exception.

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

BUILD FAILED

Total time: 0.898 secs
No cached version of cn.leancloud.android:avoscloud-sdk:v3.4 available for offline mode.
19:00:49: External task execution finished 'installDebug'.
求解答