multisite custom directory

Question

I have a multisite installation with domain mapping at the original site I was changed the wp directories to a custom

• wp-content changed to {root}
• themes moved to {root/themes}
• plugins moved to {root/ext}
• uploads moved to {root/uploads}

Every thing is working great on the main site. On the mapped sites it works with uploads and themes even the plugins show up and I can activate and deactivate plugins and manage them. But look like there is a problem in the plugins dir because the plugins don't show as it should be (I mean css)

Now this is my wp-config edits

/** Absolute path to the WordPress directory. */
if ( !defined('ABSPATH') )
    define('ABSPATH', dirname(__FILE__) . '');
    define( 'WP_PLUGIN_DIR', ABSPATH . '/ext' );
    define( 'WP_PLUGIN_URL', 'http://' . $_SERVER['HTTP_HOST'] . '/ext' );
    define( 'WP_CONTENT_DIR', ABSPATH . '' );
    define( 'WP_CONTENT_URL', 'http://' . $_SERVER['HTTP_HOST'] . '' );
    define( 'UPLOADS', ''.'uploads' );

/** Sets up WordPress vars and included files. */
require_once(ABSPATH . 'wp-settings.php');

There is something wrong I think in the ABSPATH or $_SERVER['HTTP_HOST']

But I don't know what it is.

Note that themes and uploads are working well, plugins work but not as they should.

Answer 1

Add this:

define( 'PLUGIN_DIR', ABSPATH . '/ext' );