title: GoogleDrive Android API not running
body: <p>I have installed all the sdks(s) necessary and the GoogleAPI, Google Play Services etc. but I am still getting an error! Please note I am still in the initial steps of making the application, hence the lack of code, This is my code:</p>
  
  <pre><code>package com.example.googleapi;
  
  import android.support.v7.app.ActionBarActivity;
  import android.os.Bundle;
  import android.view.Menu;
  import android.view.MenuItem;
  import android.app.Activity;
  import android.content.Intent;
  import android.content.IntentSender;
  import android.content.IntentSender.SendIntentException;
  import android.graphics.Bitmap;
  import android.os.Bundle;
  import android.provider.MediaStore;
  import android.util.Log;
  
  import com.google.android.gms.common.ConnectionResult;
  import com.google.android.gms.common.GooglePlayServicesUtil;
  import com.google.android.gms.common.api.GoogleApiClient;
  import com.google.android.gms.common.api.GoogleApiClient.ConnectionCallbacks;
  import com.google.android.gms.common.api.GoogleApiClient.OnConnectionFailedListener;
  import com.google.android.gms.common.api.ResultCallback;
  import com.google.android.gms.drive.Drive;
  import com.google.android.gms.drive.DriveApi.DriveContentsResult;
  import com.google.android.gms.drive.MetadataChangeSet;
  
  
  
  public class MainActivity extends ActionBarActivity {
  
      GoogleApiClient mGoogleApiClient;
      @Override
      protected void onCreate(Bundle savedInstanceState) {
          super.onCreate(savedInstanceState);
          setContentView(R.layout.activity_main);
          mGoogleApiClient = new GoogleApiClient.Builder(this)
                  .addApi(Drive.API)
                  .addScope(Drive.SCOPE_FILE)
                  .addConnectionCallbacks(this)
                  .addOnConnectionFailedListener(this)
                  .build();
      }
  
      @Override
      protected void onStart() {
          super.onStart();
          mGoogleApiClient.connect();
      }
  
  }
  </code></pre>
  
  <p>This is the compile error I am getting:</p>
  
  <pre><code>Error:(38, 17) error: method addConnectionCallbacks in class Builder cannot be applied to given types;
  required: ConnectionCallbacks
  found: MainActivity
  reason: actual argument MainActivity cannot be converted to ConnectionCallbacks by method invocation conversion
  </code></pre>