awwnuts

??

its on the developers page swan….lol…how much more do you need before it becomes anything more than an unknown source to you.

And even www.ads-software.com has a link to it…

https://www.ads-software.com/extend/plugins/facebook/

@potent, that condition I added works fine. If anything shows up inside the variable, then it’ll run the code as intended.

Here is the solution I found.

Line 255-285 is

foreach($fb_mentioned_friends as $friend) {

			try {
				if ($post_thumbnail_url == null) {
					$args = array('link' => apply_filters( 'rel_canonical', get_permalink()),
												'name' => get_the_title(),
												'caption' => apply_filters( 'the_excerpt', get_the_excerpt() ),
												'description' => apply_filters( 'the_excerpt', get_the_excerpt() ),
												'message' => $mentioned_friends_message,
												);
				}
				else {
					$args = array('link' => apply_filters( 'rel_canonical', get_permalink()),
												'picture' => $post_thumbnail_url,
												'name' => get_the_title(),
												'caption' => apply_filters( 'the_excerpt', get_the_excerpt() ),
												'description' => apply_filters( 'the_excerpt', get_the_excerpt() ),
												'message' => $mentioned_friends_message,
												);
				}

				$args['ref'] = 'fbwpp';

				$publish_result = $facebook->api('/' . $friend['id'] . '/feed', 'POST', $args);

				$publish_ids_friends[] = sanitize_text_field($publish_result['id']);

			}
			catch (FacebookApiException $e) {
			}
		}

I surrounded it with this

if(!empty($fb_mentioned_friends)){

}

Line 297-328 is

foreach($fb_mentioned_pages as $page) {
			try {
				if ($post_thumbnail_url == null) {
					$args = array('link' => apply_filters( 'rel_canonical', get_permalink()),
												'name' => get_the_title(),
												'caption' => apply_filters( 'the_excerpt', get_the_excerpt() ),
												'description' => apply_filters( 'the_excerpt', get_the_excerpt() ),
												'message' => $mentioned_pages_message,

												);
				}
				else {
					$args = array('link' => apply_filters( 'rel_canonical', get_permalink()),
												'picture' => $post_thumbnail_url,
												'name' => get_the_title(),
												'caption' => apply_filters( 'the_excerpt', get_the_excerpt() ),
												'description' => apply_filters( 'the_excerpt', get_the_excerpt() ),
												'message' => $mentioned_pages_message,
												);
				}

				$args['ref'] = 'fbwpp';

				$publish_result = $facebook->api('/' . $page['id'] . '/feed', 'POST', $args);

				$publish_ids_pages[] = sanitize_text_field($publish_result['id']);
			}
			catch (FacebookApiException $e) {
			}

			//$mentions .= $page['id'] . ",";
		}

I just surrounded that with this

if(!empty($fb_mentioned_pages)){

}

I’m not sure if this is going to help anything, but it got rid of the error and the posting is working fine.

I downloaded it from the Facebook Website.

https://developers.facebook.com/wordpress/

What do you mean by unknown? It is made by Facebook?