Problem with image styles : access denied I'm getting a problem with image styles being created. The files are there but the styles are not getting created. I have tried changing permissions recursively on the folder (udo chmod -R 777 /Applications/MAMP/htdocs/geoslate/sites/default/files/)but this isn't solving it. I've tried deleting the styles folder but it doesn't get recreated. There is an error in  the log:

access denied
Date    Wednesday, May 1, 2013 - 11:03
User    admin
Location    http://localhost:8888/geoslate/sites/default/files/styles/thumbnail/public/image-file-name-325x250.jpg?itok=zPXsGtyX
Referrer    http://localhost:8888/geoslate/node/1
Message sites/default/files/styles/thumbnail/publicimage-file-name-325x250.jpg
Severity    warning
It is either you update your Drupal core to the latest version or you You can add the following line to your settings.php to get the images in the site working:

$conf['image_allow_insecure_derivatives'] = TRUE;