[Plugin: WP to Twitter] WP-to-Twitter: plugin install

Does the directory (and files) have read permissions on the file server?

Joe, thank you for your reply and excuse me for the long delay in answering but I manage just the WordPress part of a site and I had to ask the site manager for the info.
As fa as I can understand all plugins are in the same situation including the plugins folders:
public_html: read, write exec for owner permission, read, exec for group permission, none for public permission
wp-content: same as above but read for public permission
plugins: same as wp-content
wp-to-twitter: read, write exec for owner permission, read, exec for group permission, read, exec for public permission
None of the above folders have the “subfolders included” marked.
I checked other different working plugins folders and they share the same definitions.
Thank you very much for your help, Massimo
P.S. I have the “images” of the above analysis and, if required, I can send them to you via email.

Well, that should be fine. Odd. Are you in a multi-site installation? If you are, it needs to be network enabled before it’ll show up for a sub-site.

Joe, thanks again. We have a main site (https://www.associazioneamuse.it/) and WordPress is installed on the server running the main site in a proper folder. We also registered the address of the WordPress site (https://www.romaduenews.it/) and our provider reroutes people asking for the latter to the correct folder of the main site. I hope this is understandable (not sure about the terminology) and answers your question. I am sorry but all sites are in Italian. Thanks, Massimo

All right. With the URL, I was able to take a look and I found that you have WP to Twitter nested one directory too deep — it’s at /wp-content/plugins/wp-to-twitter/wp-to-twitter/ — it should be at /wp-content/plugins/wp-to-twitter/. Move it one directory down and I’m guessing you should be fine.

Also, you may want to consider locking your directory structure from being browseable – from a security standpoint.

Joe, thank you very much. We followed your suggestion, wp-to-twitter appeared on our plugins list and I was able to activate it. Our site is now happily twitting. Thank you again for your help and suggestions, ciao Massimo