Yesterday I tried to install ADT plugin to Eclipse, but when I restarted it I found the next screen:
When I click on "Open SDK Manager", I see something loading but after waiting it doesn't open anything:
After that this dialogue closes and I don't see anything else of Android
PS: Ignore the code behind.
Please download a new SDK for Eclipse,Android Studio use another. Hope to help you!
See Eclipse: Failed to get the required ADT version number from the SDK