Eclipse Errors after Android SDK change

Question

I was having a problem upgrading my Android SDK so i did a clean re-install of the SDK in a new location. When I have updated my build path in eclipse, but im getting the f

Answer 1

This problem can have various origins and can almost certainly be resolved by creating a new Eclipse workspace. You'll lose all you preferences and will need to reinstall any add-ons.

In my case the root of the problem was my JDK version. Eclipse had evidently located my JDK 7 installation and had set it to default. Simply changing the preference back to JDK 6 and restarting Eclipse resolved it.