targetSdkVersion: 19
`compile 'com.android.support:support-v4:20.0.0'`

- build-tools-19.1.0
- android-19
- extra-android-support
- extra-google-google_play_services
- extra-google-m2repositor

targetSdkVersion: 21
com.android.support:support-v4:21.0.+

- build-tools-21.0.1
- android-21
- extra-android-support
- extra-google-google_play_services
- extra-google-m2repositor

private static class IdlingDrawerListener implements DrawerListener, IdlingResource {
                   ^
  class file for android.support.v4.widget.DrawerLayoutImpl not found
/home/travis/build/something/sample/src/test/java/com/abc/somesample/espresso/DrawerActions.java:200: error: cannot find symbol
        private ResourceCallback callback;
                ^
  symbol:   class ResourceCallback
  location: class IdlingDrawerListener
/home/travis/build/something/sample/src/test/java/com/abc/somesample/espresso/DrawerActions.java:255: error: cannot find symbol
        public void registerIdleTransitionCallback(ResourceCallback callback) {
                                                   ^
  symbol:   class ResourceCallback
  location: class IdlingDrawerListener
/home/travis/build/something/sample/src/test/java/com/abc/somesample/espresso/DrawerActions.java:153: error: method setDrawerListener in class DrawerLayout cannot be applied to given types;
                drawer.setDrawerListener(IdlingDrawerListener.getInstance(existingListener));
                      ^
  required: DrawerListener
  found: IdlingDrawerListener
  reason: actual argument IdlingDrawerListener cannot be converted to DrawerListener by method invocation conversion
/home/travis/build/something/sample/src/test/java/com/abc/somesample/espresso/DrawerActions.java:192: error: cannot find symbol
                instance = new IdlingDrawerListener();
                           ^
  symbol:   constructor IdlingDrawerListener()
  location: class IdlingDrawerListener
/home/travis/build/something/sample/src/test/java/com/abc/somesample/espresso/DrawerActions.java:193: error: method registerIdlingResources in class Espresso cannot be applied to given types;
                Espresso.registerIdlingResources(instance);
                        ^
  required: IdlingResource[]
  found: IdlingDrawerListener
  reason: argument type IdlingDrawerListener does not conform to vararg element type IdlingResource
/home/travis/build/something/sample/src/test/java/com/abc/somesample/espresso/DrawerActions.java:205: error: non-static variable this cannot be referenced from a static context
            this.parentListener = parentListener;
            ^
/home/travis/build/something/sample/src/test/java/com/abc/somesample/espresso/DrawerActions.java:205: error: cannot find symbol
            this.parentListener = parentListener;
                ^
  symbol: variable parentListener
/home/travis/build/something/sample/src/test/java/com/abc/somesample/espresso/DrawerActions.java:208: error: method does not override or implement a method from a supertype
        @Override
        ^
/home/travis/build/something/sample/src/test/java/com/abc/somesample/espresso/DrawerActions.java:215: error: method does not override or implement a method from a supertype
        @Override
        ^

/home/travis/build/something/sample/src/test/java/com/abc/somesample/espresso/DrawerActions.java:256: error: non-static variable this cannot be referenced from a static context
            this.callback = callback;
            ^
/home/travis/build/something/sample/src/test/java/com/abc/somesample/espresso/DrawerActions.java:256: error: cannot find symbol
            this.callback = callback;
                ^
  symbol: variable callback
/home/travis/build/something/sample/src/test/java/com/abc/somesample/espresso/DrawerActions.java:254: error: method does not override or implement a method from a supertype
        @Override
        ^