svn error (405 Method Not Allowed) in commit

If you are web developer and are trying to commit your changes via svn to sourceforge.net or google code and the commit because a (405 Method Not Allowed), the first thing you want to check is the following.

For commiting code to this kind of sites, you have to commit using the https:// direction and NOT http://. You can checkout projects using http:// but for commiting changes you must use https://. This is a common mistake that can stuck svn novices (like me)