Unexpected error when trying to set up Google Play Services in developer console

**I have uploaded my apk in alpha section in developer console **

Next I am trying to set up services. But every time i’m getting this error**

May be I should confugure something else before this step? Or this error is caused by wrong app singing? ( I’m not sure if I signed it wright)
That is my first time dealing with Google Play developer console but I am about to give up . I dont know what to do next. Guys, help me please !**

OK that was Google Play’s side problem. I have asked for help in support and they have solved it.