View source for Subversion (svn) authentication fails

[[Category:software-faq]]
==== Problem ====
When subversion client fails to authenticate printing error messages like:

 Password for '(null)' GNOME keyring:
 svn: OPTIONS of <nowiki>'https://vcs.service.rug.nl/svn/example-repo'</nowiki>:
 authorization failed: Could not authenticate to server:
 rejected Basic challenge (<nowiki>https://vcs.service.rug.nl)</nowiki>

The cause of this problem is that subversion is trying to use the gnome-keyring deamon to get a username and password. There are to known ways to prevent this and thus solve the problem:

==== Solution #1 ====
Edit the file ~/.subversion/config and under the section [auth] make sure there is a line that reads (note: nothing after the '=' symbol):
 password-stores =

==== Solution #2 ====
Disable the "keyring" which subversion is trying to use:
 rm ~/.gnome2/keyrings/login.keyring