title: Error with Endpoints in Android : GoogleAuthIOException
body: <p>I have problem with my project, where I want to connect Google Cloud Endpoints with Android. I'm still getting the same error: </p>
  
  <pre><code>05-12 21:50:23.995: W/System.err(17739): com.google.api.client.googleapis.extensions.android.gms.auth.GoogleAuthIOException
  05-12 21:50:23.995: W/System.err(17739):    at com.google.api.client.googleapis.extensions.android.gms.auth.GoogleAccountCredential$RequestHandler.intercept(GoogleAccountCredential.java:224)
  05-12 21:50:24.000: W/System.err(17739):    at com.google.api.client.http.HttpRequest.execute(HttpRequest.java:888)
  05-12 21:50:24.000: W/System.err(17739):    at com.google.api.client.googleapis.services.AbstractGoogleClientRequest.executeUnparsed(AbstractGoogleClientRequest.java:407)
  05-12 21:50:24.000: W/System.err(17739):    at com.google.api.client.googleapis.services.AbstractGoogleClientRequest.executeUnparsed(AbstractGoogleClientRequest.java:340)
  05-12 21:50:24.000: W/System.err(17739):    at com.google.api.client.googleapis.services.AbstractGoogleClientRequest.execute(AbstractGoogleClientRequest.java:458)
  05-12 21:50:24.000: W/System.err(17739):    at com.example.endpointstutorial_android.MainActivity$QueryScoresTask.doInBackground(MainActivity.java:74)
  05-12 21:50:24.005: W/System.err(17739):    at com.example.endpointstutorial_android.MainActivity$QueryScoresTask.doInBackground(MainActivity.java:1)
  05-12 21:50:24.005: W/System.err(17739):    at android.os.AsyncTask$2.call(AsyncTask.java:287)
  05-12 21:50:24.005: W/System.err(17739):    at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:305)
  05-12 21:50:24.005: W/System.err(17739):    at java.util.concurrent.FutureTask.run(FutureTask.java:137)
  05-12 21:50:24.005: W/System.err(17739):    at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:230)
  05-12 21:50:24.005: W/System.err(17739):    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1076)
  05-12 21:50:24.005: W/System.err(17739):    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:569)
  05-12 21:50:24.005: W/System.err(17739):    at java.lang.Thread.run(Thread.java:856)
  05-12 21:50:24.005: W/System.err(17739): Caused by: com.google.android.gms.auth.GoogleAuthException: Unknown
  05-12 21:50:24.005: W/System.err(17739):    at com.google.android.gms.auth.GoogleAuthUtil.getToken(Unknown Source)
  05-12 21:50:24.005: W/System.err(17739):    at com.google.api.client.googleapis.extensions.android.gms.auth.GoogleAccountCredential.getToken(GoogleAccountCredential.java:192)
  05-12 21:50:24.010: W/System.err(17739):    at com.google.api.client.googleapis.extensions.android.gms.auth.GoogleAccountCredential$RequestHandler.intercept(GoogleAccountCredential.java:217)
  05-12 21:50:24.010: W/System.err(17739):    ... 13 more`
  </code></pre>
  
  <p>My Android code:</p>
  
  <pre><code>public class MainActivity extends Activity {
      private static final String PREF_ACCOUNT_NAME = "pref.account.name";
      public static final String AUDIENCE = "server:client_id:660102392535.apps.googleusercontent.com";
      SharedPreferences settings;
      GoogleAccountCredential credential;
      String accountName;
      static final int REQUEST_ACCOUNT_PICKER = 2;
      Myendpoint service;
  
      void chooseAccount() {
          startActivityForResult(credential.newChooseAccountIntent(),
                  REQUEST_ACCOUNT_PICKER);
      }
  
      @Override
      protected void onCreate(Bundle savedInstanceState) {
          super.onCreate(savedInstanceState);
          setContentView(R.layout.activity_main);
          credential = GoogleAccountCredential
                  .usingAudience(
                          this,AUDIENCE);
  
          settings = getSharedPreferences("SafeAndroid", 0);
          setAccountName(settings.getString(PREF_ACCOUNT_NAME, null));
  
          Myendpoint.Builder builder = new Myendpoint.Builder(
                  AndroidHttp.newCompatibleTransport(), new GsonFactory(),
                  credential);
          service = builder.build();
  
          if (credential.getSelectedAccountName() != null) {
              Toast.makeText(getApplicationContext(),
                      "logged as: " + credential.getSelectedAccountName(), 5000)
                      .show();
              sendRequest();
          } else {
              chooseAccount();
          }
  
      }
  
      private class QueryScoresTask extends AsyncTask&lt;Void, Void, Void&gt; {
          Context context;
  
          public QueryScoresTask(Context context) {
              this.context = context;
          }
  
          protected Void doInBackground(Void... unused) {
              Log.v("AAAAA", "2");
              try {
                  MyEntity e = service.myentity().get().execute();
                  Log.v("AAAAA", e.toString() + "");
              } catch (IOException e) {
                  // TODO Auto-generated catch block
                  e.printStackTrace();
              }
              return null;
          }
      }
  
      private void setAccountName(String accountName) {
          SharedPreferences.Editor editor = settings.edit();
          editor.putString(PREF_ACCOUNT_NAME, accountName);
          editor.commit();
          credential.setSelectedAccountName(accountName);
          this.accountName = accountName;
      }
  
      @Override
      protected void onActivityResult(int requestCode, int resultCode, Intent data) {
          super.onActivityResult(requestCode, resultCode, data);
          switch (requestCode) {
          case REQUEST_ACCOUNT_PICKER:
              if (data != null &amp;&amp; data.getExtras() != null) {
                  String accountName = data.getExtras().getString(
                          AccountManager.KEY_ACCOUNT_NAME);
                  if (accountName != null) {
                      setAccountName(accountName);
                      SharedPreferences.Editor editor = settings.edit();
                      editor.putString(PREF_ACCOUNT_NAME, accountName);
                      editor.commit();
                      Toast.makeText(
                              getApplicationContext(),
                              "logged as: " + credential.getSelectedAccountName(),
                              5000).show();
                      sendRequest();
                  }
              }
              break;
          }
      }
  
      private void sendRequest() {
          QueryScoresTask a = new QueryScoresTask(this);
          a.execute();
      }
  
  }
  </code></pre>
  
  <p>And my endpoint code:</p>
  
  <pre><code>@Api(name = "myendpoint", version = "v1",description = "This retrieves an instance of MyEntity.", clientIds = {
              "660102392535.apps.googleusercontent.com", "660102392535-dobseln3gde8e6lqnd2v80l3oh6mm1nh.apps.googleusercontent.com" }, audiences = { "660102392535.apps.googleusercontent.com" })
  public class MyEndpoint {
  
      @ApiMethod(httpMethod = "GET", name = "myentity.get", path = "myentity/get")
      public MyEntity getEntity(User user) {
          MyBusinessClass myBusinessClass = new MyBusinessClass();
          MyEntity myEntity = myBusinessClass.getMyEntity();
  
          DatastoreService datastore = DatastoreServiceFactory.getDatastoreService();
          Entity device = new Entity("gcmid", "keyname");
          device.setProperty("account", user.getEmail());
          device.setProperty("device", "idtelefonu1");
          datastore.put(device);
  
          return myEntity;
      }
  }
  </code></pre>
  
  <p>I read that some people had that problem, but did not write how to solve it. I created new debug.key and get new sha1 but not work. Also tried to create new Android project with new package - not worked.</p>