Just delete the .htaccess files in files and tmp and visit /admin/config/media/file-system and Save, Drupal 7.24 will create the correct .htaccess files. If this doesn't work for tmp try putting a dot before the /tmp in the tmp field so ./tmp and save again.

Neil


On 6 December 2013 12:29, Nancy Wichmann <nan_wich@bellsouth.net> wrote:
It seems the easiest way to fix this is to delete the .htaccess file from those directories and then save the file systems settings. That will place an approved version into those directories.
 
Nancy


From: Jamie Holly

There have been reports that the error message still persists even after
putting the file in.

http://www.ostraining.com/blog/drupal/drupal-724-tmp-directory/

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