Error after install googleplus plugin


#1

Hello everyone,
Sorry for my English (I’m French).
My project worked well until I wanted to integrate Google signon with the googleplus plugin.
Now when I run Android ionic cordova run, I have this:

BUILD FAILED in 2s
14 actionable tasks: 1 executed, 13 up-to-date
(node:1637) UnhandledPromiseRejectionWarning: Unhandled promise rejection (rejection id: 1): Error: /project/platforms/android/gradlew: Command failed with exit code 1 Error output:
FAILURE: Build failed with an exception.

* What went wrong:
Could not resolve all files for configuration ':app:debugCompileClasspath'.
> Could not find firebase-iid.aar (com.google.firebase:firebase-iid:11.8.0).
  Searched in the following locations:
      https://jcenter.bintray.com/com/google/firebase/firebase-iid/11.8.0/firebase-iid-11.8.0.aar
> Could not find firebase-common.aar (com.google.firebase:firebase-common:11.8.0).
  Searched in the following locations:
      https://jcenter.bintray.com/com/google/firebase/firebase-common/11.8.0/firebase-common-11.8.0.aar
> Could not find firebase-messaging-license.aar (com.google.firebase:firebase-messaging-license:11.8.0).
  Searched in the following locations:
      https://jcenter.bintray.com/com/google/firebase/firebase-messaging-license/11.8.0/firebase-messaging-license-11.8.0.aar

I can not find a solution.
Can someone help me please?

Thanks a lot.

Best Regards

Eric