Thread:Extension talk:CategoryTree/CategoryTree broken after updating to 1.21.1 and installing new CategoryTree Snapshot/reply (2)

Hi,

as I just ran into the same problem on my installation, please check the /var/log/apache2/[yourwikiname]-error.log

It might be that you get some pcfg_openfile: unable to check htaccess file, ensure it is readable errors. In that case, make sure the permissions for the folders of the extension are set correctly. I was able to overcome my problem by doing a chmod 755 /var/lib/mediawiki/extensions/CategoryTree/modules

You can check if that's your problem by issuing the following command: su – www-data -s /bin/bash -c “cd [replacebyyourextensionpath]/CategoryTree/modules; ls -la”

If that returns a "permission denied" on top of the results, then you have the same problem I had