title: Why can't I import AndroidJUnit4 and ActivityTestRule into my unit test class?
body: <p>I'm having trouble importing some of the Android UI testing framework classes - I just can't figure out what is going wrong!</p>
  
  <p>This is my class:</p>
  
  <pre><code>@RunWith(AndroidJUnit4.class)
  @LargeTest
  public class ExampleUnitTest {
  
  @Rule
  public ActivityTestRule&lt;MainActivity&gt; mActivityRule = new ActivityTestRule(MainActivity.class);
  
  @Test
  public void listGoesOverTheFold() {
      onView(withText("Hello world!")).check(matches(isDisplayed()));
    }
  }
  </code></pre>
  
  <p>But for some reason I get the errors 'cannot find symbol ActivityTestRule' and 'cannot find symbol AndroidJUnit4'. I've tried to import them but they cannot be found.</p>
  
  <p>The dependencies in build.gradle are set to:</p>
  
  <pre><code>compile fileTree(dir: 'libs', include: ['*.jar'])
  testCompile 'junit:junit:4.12'
  compile 'com.android.support:appcompat-v7:23.4.0'
  androidTestCompile 'com.android.support:support-annotations:23.4.0'
  
  androidTestCompile 'com.android.support.test:runner:0.4'
  androidTestCompile 'com.android.support.test:rules:0.4'
  androidTestCompile 'com.android.support.test.espresso:espresso-core:2.2.1'
  androidTestCompile 'com.android.support.test.uiautomator:uiautomator-v18:2.1.2'
  </code></pre>
  
  <p>So I think I have all the dependencies setup - I've been trying many things but with no luck.</p>
  
  <p>Anyone have any ideas?</p>