Re: Some installation errors?
I fixed this recently in svn. I only noticed this problem recently because I always use IIS instead of the built in VS Web Server and the error doesn't occur if you use IIS.
You can get around this by configuring a Virtual Directory in IIS like http://localhost/mojo then right click the web project and go to properties and see on the web tab where you can tell it to use IIS instead of the VS web server.
Another option is to get the latest code from svn branches/2.1 I think it is already fixed there but you may have to do a clean install of the db or try your hand with the upgrade script.
In general, these kind of issues should be reported in the developer forum.