copy-site: PHx parsing error

Working in Xampp...

I made a copy of the site folder and did rename it.
I made a copy of the MySQL data and did rename it.
The config.inc.php got the new mysql name.
Tools -> Config -> File Manager got the new site-path.

What else should be set?

In the copy-site the following error occures after the ~oldsitepath~ has been deleted/renamed:
:
« MODx Parse Error »
MODx encountered the following error while attempting to parse the requested resource:
« PHP Parse Error »
PHP error debug
Error: include_once(K:/xampp/htdocs/~oldsitefolder~/assets/plugins/phx/phx.parser.class.inc.php) [function.include-once]: failed to open stream: No such file or directory
Error type/ Nr.: Warning - 2
File: K:\xampp\htdocs\~newsitefolder~\manager\includes\document.parser.class.inc.php(745) : eval()’d code
Line: 10

I tried to delete&reinstall the PHx plugin in the new site with the same result.

Set the new path on Tools -> Config -> Interface & Features : Resource path:

if you are using FURL (Friendly URL) you may also need to make changes to the .htaccess

If there was an emoticon, hitting its own forehead, I surely put that here!
Thank you guys!