ADT needs to update but find no update

Question

Today I installed API8 from the SDK manager, previously I only had been working with API14. After the SDK manager was done, and upon restarting ADT I got this error:

Answer 1

Same issue here, but luckily it is resolved now. The help->install new software and the android tool manager didn't help.

I re-downloaded the ADT bundle and simply copied over the failing installation, it works now.