Here is the project: https://code.google.com/p/openpdn/source/checkout
I tried:
Folder > Right click > SVN Checkout > https://code.google.com/p/openpdn/
but doesn't work. This path doesn't look like others I have seen where it ends with /svn/trunk.
Any ideas?
It's a Mercurial repo, not an SVN repo. You'll need to use TortoiseHg, not TortoiseSVN.