Subclipse Installation Problem on Mac OS X

Like my development environments, things change.  Since my next project is to extend a product written in Java and, since I used to develop Eclipse rich clients in my webMethods days, I figured I'd install Eclipse on my MacBook Pro.

We use SVN so, I also installed the most excellent Subclipse Eclipse plug-in.  All was going well until, I tried to synchronize to the repository.  When I did, I got the following error: