Problems in Eclipse after ADT update

Question

I installed an update for ADT for solving problems described here -> Eclipse Plugin Dev: Unable to resolve dependencies

Now I am getting new errors like this:

Unable to resolve plug-in "platform:/plugin/org.eclipse.jdt.ui//icons/full/eview16/source.gif".
Unable to resolve plug-in "platform:/plugin/org.eclipse.jdt.ui//icons/full/eview16/javadoc.gif".

and here is the pic from my Package explorer:

How to fix it?

Answer 1

'Check for updates' can result in the error you have.

To fix : Help > Install New Software... > What is already installed? (link near bottom right) > Installation History (tab) > Select 2nd row > Revert