I’ve got the same problem. Just installed WP on my (fresh) site and trying to install a theme it comes up with that same error message.
I’ve done a quick google of it, some suggesting an edit of the wp-config.php file.
Either it doesn’t work for me, or I’m not editing it correctly. I’m a newb when it comes to this, so if anyone got any tips I’d be very grateful if it is explained very carefully (spoonfeed within reason).
These are blogs giving solutions to the problem:
blog.noizeramp.com/2008/09/10/wordpress-unable-to-locate-wordpress-plugin-directory/
https://www.ads-software.com/support/topic/238738?replies=17#post-982487
Being new to both using ftp and to wp/php in general I’m not sure if I’m able to implement those.
