Ошибка при работе с Google Maps API v2

public class MainActivity extends Activity implements
        GoogleApiClient.ConnectionCallbacks,             GoogleApiClient.OnConnectionFailedListener  {
    private GoogleApiClient mGoogleApiClient;
 
private Location mLastLocation;
TextView mLatitudeText;
TextView mLongitudeText;
private final static int CONNECTION_FAILURE_RESOLUTION_REQUEST = 9000;
private static final int REQUEST_RESOLVE_ERROR = 1001;
@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    TextView mLatitudeText = (TextView) findViewById(R.id.mLatitudeText);
    TextView mLongitudeText = (TextView) findViewById(R.id.mLongitudeText);
    mGoogleApiClient = new GoogleApiClient.Builder(this)
            .addConnectionCallbacks(this)
            .addOnConnectionFailedListener(this)
            .addApi(LocationServices.API)
            .build();
}
@Override
protected void onResume() {
    super.onResume();
    mGoogleApiClient.connect();
}
@Override
protected void onPause() {
    super.onPause();
     mGoogleApiClient.disconnect();
}
@Override
public void onConnected(Bundle bundle) {
    mLastLocation =     LocationServices.FusedLocationApi.getLastLocation(mGoogleApiClient);
    if (mLastLocation != null) {
        mLatitudeText.setText(String.valueOf(mLastLocation.getLatitude()));
            mLongitudeText.setText(String.valueOf(mLastLocation.getLongitude()));
    }
     } // end onConnected
@Override
public void onConnectionSuspended(int i) {
}
@Override
public void onConnectionFailed(ConnectionResult result) {
    if (result.hasResolution()) {
        try {
            result.startResolutionForResult(this, REQUEST_RESOLVE_ERROR);
        }
        catch (IntentSender.SendIntentException e) {
            e.printStackTrace();
        }
    } //end if
 
} // end onConnectionFailed
}

03-25 10:30:41.120  25816-25816/? E/dalvikvm﹕ Could not find class        'android.app.AppOpsManager', referenced from method         com.google.android.gms.common.GooglePlayServicesUtil.zza
03-25 10:30:41.460  25816-25816/? E/AndroidRuntime﹕ FATAL EXCEPTION: main
java.lang.NullPointerException
        at     com.example.robot.myapplication.MainActivity.onConnected(MainActivity.java:66)

 mLastLocation =     LocationServices.FusedLocationApi.getLastLocation(mGoogleApiClient);

mGoogleApiClient = new GoogleApiClient.Builder(this)
            .addConnectionCallbacks(this)
            .addOnConnectionFailedListener(this)
            .addApi(LocationServices.API)
            .build();