相关疑难解决方法(0)

例外:

07-28 14:36:13.140: W/System.err(11382): com.google.android.gms.auth.GoogleAuthException: Unknown
07-28 14:36:13.140: W/System.err(11382):    at com.google.android.gms.auth.GoogleAuthUtil.getToken(Unknown Source)
07-28 14:36:13.140: W/System.err(11382):    at com.google.android.gms.auth.GoogleAuthUtil.getToken(Unknown Source)
07-28 14:36:13.148: E/AndroidRuntime(11382): FATAL EXCEPTION: main

我的注册码:

public class Signup extends Activity {

      final private String CLIENT_ID = <android-client-id>;
      final private List<String> SCOPES = Arrays.asList(new String[]{
          "https://www.googleapis.com/auth/plus.login"
      });
      private String webId = <web-client-id>;


      private GoogleAccountCredential mCredential;

      private EditText mExchangeCodeEditText;
      private EditText mIdTokenEditText;

      @Override
      protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_google);
        //mExchangeCodeEditText = (EditText) findViewById(R.id.editTextExchangeCode);
       // mIdTokenEditText = (EditText) findViewById(R.id.editTextIdToken);

        // initiate a …