java.lang.RuntimeException: No activities found if calling check right after getActivity when test starts about android-test-kit HOT 8 CLOSED

I think there's a problem in this code, because this is where the exception was 
thrown
RootViewPicker

  private void waitForAtLeastOneActivityToBeResumed() {
    Collection<Activity> resumedActivities =
        activityLifecycleMonitor.getActivitiesInStage(Stage.RESUMED);
    if (resumedActivities.isEmpty()) {
      uiController.loopMainThreadUntilIdle();
      resumedActivities = activityLifecycleMonitor.getActivitiesInStage(Stage.RESUMED);
    }
    if (resumedActivities.isEmpty()) {
      List<Activity> activities = Lists.newArrayList();
      for (Stage s : EnumSet.range(Stage.PRE_ON_CREATE, Stage.RESTARTED)) {
        activities.addAll(activityLifecycleMonitor.getActivitiesInStage(Stage.RESUMED));
      }
      if (activities.isEmpty()) {
        throw new RuntimeException("No activities found. Did you forget to launch the activity "
            + "by calling getActivity() or startActivitySync or similar?");
      }

When there's no activity in resumed state, it tries to find all activities in 
other states. However, when calling to the activitymonitor, it still passes 
Stage.RESUME in. It should be:
      for (Stage s : EnumSet.range(Stage.PRE_ON_CREATE, Stage.RESTARTED)) {
        activities.addAll(activityLifecycleMonitor.getActivitiesInStage(s));
      }

There's another problem in the method:

      for (int waitIdx = 0; waitIdx < waitTimes.length; waitIdx++) {
        Log.w(TAG, "No activity currently resumed - waiting: " + waitTimes[waitIdx]
            + "ms for one to appear.");
        uiController.loopMainThreadForAtLeast(waitTimes[waitIdx]);
        resumedActivities = activityLifecycleMonitor.getActivitiesInStage(Stage.RESUMED);
        if (!resumedActivities.isEmpty()) {
          break;
        }
      }
      throw new RuntimeException("No activities in stage RESUMED. Did you forget to launch the "
          + "activity. (test.getActivity() or similar)?");

Even if it gets the resumed activities in the for loop, it will still throw the 
exception. It should be 

if(resumedActivities.isEmpty())
{
      throw new RuntimeException("No activities in stage RESUMED. Did you forget to launch the "
          + "activity. (test.getActivity() or similar)?");
}

Thanks for reporting. Will be fixed in the next release.

Fixed in 1.1

Using 1.1 but still having this issue

Same here, this is still a problem

I confirm that the issue still occurs on Espresso 2.0. Marking this as FIXED 
seems premature to me.

getActivity() cause app crash.

it mention about attempt to invoke virtual method.