Reply To: URL-CHANGE – ERROR: The $img_path variable has not been set.

@ William

Well, you have several critical errors in your wp-config.php file…

The values you have set for WP_SITEURL and WP_HOME are unsafe and should not end with a trailing slash per the Codex. And even more importantly, I suspect those path are not correct.

Although not a major issue, you then set these constants to '' right afterwards. Since you cannot redefine a constant after it is declared they do not do anything but it will throw PHP notice message in the error log (if configured). You should remove them.

The path you have set for WP_CONTENT_DIR has a trailing slash and should not per the Codex.

Also, the path that is set for WP_CONTENT_URL is suspect. As I said previously, if this path is not correct, Connections will not be able to find the images and set the image path.

Generally, unless you have some very unique WP setup, you are better off not setting the WP_SITEURL, WP_HOME, WP_CONTENT_DIR and WP_CONTENT_URL constants manually. You should let WP configure them.

CRITICAL

Not even sure how your site is working at all because this line is all wrong:
define('ABSPATH', dirname(FILE) . '/');

It should be:
define('ABSPATH', dirname(FILE) . '/');

This can also definitely break the ability for Connections to find the image and properly set the image path.