setuptools too old

I receive an 'error: Unexpected HTML page found at ...' message when trying to use easy_install to install the plugin

The reason for this is that the current stable release of setuptools does work well with Subversion 1.5.

Solution

You need to install the latest development branch of setuptools.

svn co http://svn.python.org/projects/sandbox/branches/setuptools-0.6/

Then install it as root.

cd setuptools-0.6
python setup.py install