During Installation I get an error message that says I need the plug-in "org.eclipse.pde.ui". What do I do?

The Mylyn plug-in that provides the team integration (Subversion and CVS) has a dependency on the Eclipse PDE feature. There are a couple of things you can do.

• In the Install/Update dialog select the Eclipse Europa/Callisto Discovery site, in addition to the CollabNet site. This will allow you to use the Select Required button and have the PDE feature automatically selected.
• Expand the sections of the tree, and deselect the feature that has an error. You will also need to deselect the feature that integrates Subclipse and Mylyn as it needs the feature you will deselect.