Can't checkout sources using TortoiseSVN

There is a project repository http://svn.gna.org/viewcvs/pokersource/trunk/poker-eval/ but I can't checkout it with my TortoiseSVN. The error is

Repository moved permanently to '/viewcvs/pokersource开发者_如何学C/trunk/poker-eval/';

What's wrong with it? Could anybody help me with this problem?

The URL you provided is only intended for human interaction with a webbrowser, not for SVN client tools. The SVN repository URL is http://svn.gna.org/svn/pokersource/trunk (see gna.org project page)!

The link you are pointing to (http://svn.gna.org/viewcvs/pokersource/trunk/poker-eval/) does not seem to be a repository URL at all. It seems to be a ViewCVS URL.

ViewCVS is a server that allows you to browse a repository and its history, but does not actually necessarily function like an SVN server, for TortoiseSVN to be able to communicate with.

What steps are you taking to perform the checkout? Do you know who setup the repository initially?

A lot of svn clients will give this error if the repository url is incorrectly specified (as indicated by this question).