Problems executing gradle bintrayUpload

Question

The following is incorrect information:

FAILURE: Build failed with an exception.

• What went wrong: Execution failed for task ': library: bintrayUpload'.

  Failed to create package "LuMeng / maven / WinchanceHttpUtil": HTTP / 1.1 401 Unauthorized [message: this resource requires authentication]

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

STRICTLY MALFUNCTIONAL

Total time: 24.695 seconds

I followed the first gradlebuild.It step worked. But when I run the second step: gradlebintrayUpload, it shows the log above.