Configuration with name 'default' not found.
* What went wrong:
A problem occurred configuring project ':app'.
> Could not resolve all dependencies for configuration ':app:_debugApk'.
> Configuration with name 'default' not found.
* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option
A problem occurred configuring project ':app'.
> Could not resolve all dependencies for configuration ':app:_debugApk'.
> Configuration with name 'default' not found.
* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option
to get more log output.
原因：