PHPDox File not found
I think that the problem lies within incorrect using WINDOWS path. Please see this question:
As a quick test, try to change file_exists check to harcoded argument:
file:///C:\htdocs\AscPro\build\phpdox\tokens\AppBundle\AppBundle.php.xml
Im afraid it`s a bug of phpdox.
Phpdox convert all paths to unix style before check to exists.
Maybe you can hack function exists
replace:return file_exists($this->getPathname());
to:return file_exists(parent::getPathname());