Forum: Rails Engines development getting error 405

I am trying to install rails engines using the command

"ruby script\plugin install engines"

but getting the error

svn: REPORT request failed on '/rails_engines/!svn/vcc/default'
svn: REPORT of '/rails_engines/!svn/vcc/default': 405 Method not allowed 
(http:
/opensvn.csie.org)

We have to use proxy server and I have added registry entries for svn to 
set http-proxy-host and http-proxy-port.

What else am I missing here?

--Jeet