Thread:Project:Support desk/MediaWIKI 1.21 cannot import file PHP WARNING wfMkdirParents (2)/reply (6)

Sorry, I made a mistake when I wrote my first post but since the beginning error is :

"[Mon Jun 03 11:36:25 2013] [error] [client X.X.X.X] PHP Warning: wfMkdirParents: failed to mkdir "/mediawiki/images/5/56" mode 0777 in /path/to/my/folder/mediawiki/includes/GlobalFunctions.php on line 2582, referer: http://X.X.X.X/mediawiki/index.php/Sp%C3%A9cial:T%C3%A9l%C3%A9verser"

I read some posts about upload pronlems, some users have sub-folder of images folder already created after installation. It was not my case. Is there something wrong here ?