我正在使用LibGDX制作Android游戏，我想使用Google Play游戏服务API，但我无法让它发挥作用。
以下是我尝试登录时会发生什么：
06-12 20:08:47.745: E/Volley(4046): [253] tk.a: Unexpected response code 403 for https://www.googleapis.com/games/v1/players/115171141636978128288
06-12 20:08:47.846: E/SignInIntentService(4046): Access Not Configured. Please use Google Developers Console to activate the API for your project.
06-12 20:08:47.846: E/SignInIntentService(4046): ebw
06-12 20:08:47.846: E/SignInIntentService(4046): at dwp.a(SourceFile:146)
06-12 20:08:47.846: E/SignInIntentService(4046): at dfx.a(SourceFile:390)
06-12 20:08:47.846: E/SignInIntentService(4046): at dfx.a(SourceFile:371)
06-12 20:08:47.846: E/SignInIntentService(4046): at dex.a(SourceFile:719)
06-12 20:08:47.846: E/SignInIntentService(4046): at ecp.a(SourceFile:250)
06-12 20:08:47.846: E/SignInIntentService(4046): at com.google.android.gms.games.service.GamesSignInIntentService.onHandleIntent(SourceFile:389)
06-12 20:08:47.846: E/SignInIntentService(4046): at android.app.IntentService$ServiceHandler.handleMessage(IntentService.java:65)
06-12 20:08:47.846: E/SignInIntentService(4046): at android.os.Handler.dispatchMessage(Handler.java:102)
06-12 20:08:47.846: E/SignInIntentService(4046): at android.os.Looper.loop(Looper.java:136)
06-12 20:08:47.846: E/SignInIntentService(4046): at android.os.HandlerThread.run(HandlerThread.java:61)
06-12 20:08:47.846: E/LoadSelfFragment(9533): Unable to sign in - application does not have a registered client ID
06-12 20:08:47.846: W/SignInActivity(9533): onSignInFailed()...
06-12 20:08:47.846: W/SignInActivity(9533): ==> Returning non-OK result: 10004
我检查了应用是否已关联，以及我的密钥库与Google Developers Console之间的SHA1密钥是否相同，我检查了我是否是允许使用该API的应用的测试人员。
现在我不知道该去哪里工作。
感谢您的帮助。