The import android.support cannot be resolved

Please follow these Steps:

1. Go to your Project's Properties
2. Navigate to the Java Build Path
3. Then go to the Libraries tab. There click the Add External JARs Button on the Right pane.
4. Select the android-support-v4.jar file, usually the path for the Jar file is :
   YOUR_DRIVE\android-sdks\extras\android\support\v4\android-support-v4.jar 
5. After adding andorid-support-v4.jar Library, navigate to the Order and Export tab and put check mark on the android-support-v4 Library file.
6. After doing the above, Clean the Project and Build it.
7. Problem Solved.