问安卓:java.lang.SecurityException:注入其他应用需要INJECT_EVENTS权限

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package com.example.myfirstapp2.test;

public class MainActivityFunctionalTest extends ActivityInstrumentationTestCase2<Login>{

private static final String TAG = "MainActivityFunctionalTest";
private Login activity;

  public MainActivityFunctionalTest() {
    super(Login.class);
  }


  @Override
  protected void setUp() throws Exception {
     Log.d(TAG,"Set-Up");
     super.setUp();
    setActivityInitialTouchMode(false);
    activity = getActivity();
  }

  public void testStartSecondActivity() throws Exception {
      // add monitor to check for the second activity
        ActivityMonitor monitor =
            getInstrumentation().
              addMonitor(DisplayMessageActivity.class.getName(), null, false);
        //addMonitor(MainActivity.class.getName(), null, false);
     // find button and click it
        Button view = (Button) activity.findViewById(R.id.btnLogin);

        // TouchUtils handles the sync with the main thread internally
        TouchUtils.clickView(this, view);

        // to click on a click, e.g., in a listview
        // listView.getChildAt(0);

        // wait 2 seconds for the start of the activity
        DisplayMessageActivity startedActivity = (DisplayMessageActivity) 

     monitor
            .waitForActivityWithTimeout(5000);
        assertNotNull(startedActivity);

        // search for the textView
        TextView textView = (TextView) startedActivity.findViewById(R.id.Email);

        // check that the TextView is on the screen
        ViewAsserts.assertOnScreen(startedActivity.getWindow().getDecorView(),
            textView);
        // validate the text on the TextView
        assertEquals("Text incorrect", "1http://www.vogella.com", 

         textView.getText().toString());

        // press back and click again
        this.sendKeys(KeyEvent.KEYCODE_BACK);

        TouchUtils.clickView(this, view);

  }


    }

 TouchUtils.clickView(this, view);