I need to use Subversion with Eclipse on Mac Lion. I encounter problem as below
I saw: Subclipse in Mac OS Lion shows "Unable to load default SVN client" error
In my context:
The issue is that you need the right native Subversion libraries for the version of Subclipse you use. This page has information and a chart of the versions:
http://subclipse.tigris.org/wiki/JavaHL
The binaries on CollabNet website are still for SVN 1.6 so you either need to get SVN 1.7 binaries (MacPorts and Homebrew are good places to get it) or you need to use Subclipse 1.6.x.