Yesterday I upgraded OS X to Yosemite , and since then my game has not been recognized by Game Center. GKErrorDomain : code 15 and text:
"The requested operation could not be completed because this application is not recognized by Game Center.
I checked Developer -> Use Sandbox Server in the Game Center application without any results. Also tried Clean, Build again. Doesn't the GC app seem to go into sandbox mode?
As I said, the game worked fine until I switched to Yosemite.
Any help is appreciated.
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