When I am updating eclipse software and running applications, an error is shown as:
"The container 'Android Dependencies' references non existing library 'C:\Project\android-sdk-windows\tools\support\annotations.jar'.
Please help me to clear this error and run the applications.
all you need to do is updating your sdk through android sdk manager
After updating SDK manager go to Eclipse -> Help -> Check update -> Install. This will update the ADT corresponding to the SDK update.
I had the same problem, i tried the suggested solutions but nothing happened and then I just closed all opened projects in my workspace and reopened them again. Then all the messages disappeared.
I ran into the same problem because I had updated the ADT but not the SDK Manager. - Update the SDK Manager, - then close everything and restart Eclipse, - build clean your Android projects and that should solve your problem.
来源：https://stackoverflow.com/questions/10083301/androidbug-in-build-path