Forgive me. I was confused, I used OSQA Django Stack not Django Stack and I get that error because I added this line in
STATICFILES_DIRS = (
That gets a path like this:
F:/DEV/apps\\\\osqa\\\\forum/skins/common/static and this path is invalid on windows.
I don't know what is causing that problem and why do I get 4 slashed. I did not make any other changes on osqa except to import and execute the logging and followed this guide to get SASS work on OSQA ( https://godjango.com/49-compile-and-compress-assets-with-django-pipeline/ ). I think is not a problem on the OSQA Stack but it is likely that I have done some wrong configuration.
Thansk you so much for your answer and for trying to reproduce my issue.