how to delete all .svn hiden files from my project to do an update in svn repository

how to delete all .svn hiden files from my project to do an update in svn
repository

Hi I have a problem in using svn repository. When i try to update my
project in svn i m getting the following error
oomsys@oomsysmob-6:~/brundelre3$ svn st
svn: warning: '.' is not a working copy
oomsys@oomsysmob-6:~/brundelre3$ svn up
Skipped '.'
I tried the things which explained about these error previously from this
links
Removing .svn files from all directories
http://bookmarks.honewatson.com/2008/06/06/find-and-remove-hidden-folders-svn-ubuntu-linux-command-line/
http://www.ubun2.com/question/348/how_remove_all_svn_folders_recursively
but nothing solves my problem. I want to remove all the hidden files from
my project.
Thanks
Nirmala Sudhir