如何解决测试运行失败：由于本机崩溃导致仪表运行失败＆＃39;在机器人中

Question

我正在尝试JUnit测试，但面临以下问题。

当我通过右键单击Project选择Android JUnit Test时，它会显示以下消息

  

测试运行失败：由于本机崩溃＆＃39;

导致仪表运行失败

当我右键单击TestApk.java并选择Android JUnit Test时，它会显示

  

测试运行失败：由于java.lang.ClassNotFoundException

，检测运行失败

发生两种情况

这是我的源代码。

@SuppressWarnings("unchecked")
public class TestApk extends ActivityInstrumentationTestCase2 {

      private static final String LAUNCHER_ACTIVITY_FULL_CLASSNAME = "com.nhn.android.ndrive";
      private static Class launcherActivityClass;
      static {

          try {
              launcherActivityClass = Class
                .forName(LAUNCHER_ACTIVITY_FULL_CLASSNAME);
          } catch (ClassNotFoundException e) {
            throw new RuntimeException(e);
          }
      }

      public TestApk() throws ClassNotFoundException {
          super(launcherActivityClass);
      }

      private Solo solo;

      @Override
      protected void setUp() throws Exception {
         super.setUp();
         solo = new Solo(getInstrumentation(), getActivity());
      }

      public void testDisplayBlackBox() {
         //Enter any integer/decimal value for first editfield, we are writing  10
         solo.clickOnWebElement(By.id("com.nhn.android.ndrive:id/actionbar_photo_left_button"));
         solo.clickOnWebElement(By.id("com.nhn.android.ndrive:id/gnb_group_layout"));
         //Enter any integer/decimal value for first editfield, we are writing  20

         solo.clickOnWebElement(By.id("com.nhn.android.ndrive:id/actionbar_open_drawer_button"));
         //Click on Multiply button
         solo.clickOnButton("com.nhn.android.ndrive:id/base_menu_task_open_button");

        //Verify that resultant of 10 x 20
        //assertTrue(solo.searchText("200"));
       }

       @Override
       public void tearDown() throws Exception {
            solo.finishOpenedActivities();
       }

}

但包名没有错。

如何解决这个问题？