Adam Trickett

After moving my WordPress install out of a directory and turning it into a Multisite install, I found the problem that my Portfolio (which is based off a couple of Custom Post Types, vanished without a trace. I wasn’t aware of this until today and I’ve only just come out of panic mode. Heres what I did:

1. In the WordPress Admin, go to Settings > Permalinks. Just by going here, apparently this flushes or rewrites permalink rules.
2. Failing that, you have a more serious problem. Add the following section of code to your functions.php file, refresh your Admin Dashboard once, and then remove the code.

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    add_action('admin_init','my_admin_init');
    function my_admin_init() {
        global $wp_rewrite;
        $wp_rewrite->flush_rules();
    }

	add_action('admin_init','my_admin_init');
	function my_admin_init() {
		global $wp_rewrite;
		$wp_rewrite->flush_rules();
	}

Note: This is very performance heavy function. I waited nearly 5-10 seconds when I refreshed my Admin Dashboard. As I said, you should remove it afterwards.