is having trouble with Google Play services - When using GoogleApiClient, it always trigger onConnectionFailed

Question

Currently, my app is using

• minSdkVersion 14
• targetSdkVersion 23
• compile \'com.google.android.gms:play-services-gcm:8.4.0\'
• compile \'com

Answer 1

After working closely with my user, I realize the solution is

1. Uninstall Google Play services

2. Update Google Play Services again

https://play.google.com/store/apps/details?id=com.google.android.gms&hl=en

It works fine after that. If it still doesn't, perhaps restarting your device might help?!