no such file to load -- rspec/autorun (LoadError)

attempting to use rspec2, rails3, and autotest. When running autotest I get stuck with the following:

loading autotest/rails_rspec2
style: RailsRspec2

--------------------------------------------------------------------------------

...

...bin/rspec:2:in `require': no such f开发者_JAVA技巧ile to load -- rspec/autorun (LoadError)

Looks like a path issue but I'm not sure how to fix it.

Here's the gist of my configuration.

Any thoughts on what I can do to troubleshoot this?

It was a problem with the rspec trunk (sometime shortly after beta15). Reverting to 2.0.0.beta.15 solved the problem.