I am beginner in Android programming. My problem is, that I can not update ADT. The problem started, when after a long time I have updated in Android SDK Manager the Androi
Help-->Install New Software-->What is already installed?
Then, Select "Android DDMS, Andoid Devlopment Tools,Android Hierarcy Viewer, Android native Development Tools, Android Traceview, Tracer for OpenGL ES" and click Uninstall.
After all this step, try Add link (https://dl-ssl.google.com/android/eclipse/) and name is ADT Plugin. This link will get the latest ADT Plugin. In this way you reinstall the ADT.