I am constantly getting this error when working with eclispe and the subclipse plugin:
Unable to load default SVN Client
I have already install
If you are using the Subversive plugin (which is newer than the Subclipse one, and the two are easily confused with one another), you might run into problems finding the library even after configuring the library path in eclipse.ini. To fix the entire problem, you might need to add this setting to the file as well:
-Dsubversion.native.library=C:/SlikSVN_JavaHL/libsvnjavahl-1.dll
Read http://www.eclipse.org/subversive/installation-instructions.php for more help, it's a good-quality explanation of everything.