[php.ini] include_path non funziona

[fragolina-mx]

Fatal error: Cannot redeclare class InvalidArgumentException in C:\wamp\www\appuntamenti\webapp\appts\errors.inc on line 147

nel file errors.inc ho questo:

class InvalidArgumentException extends Exception
{
  function __construct($in_argname)
  {
    parent::__construct("We're sorry, but an internal programming error has occurred in the web application.  The system administrators have been notified of the error and we kindly request that you try again in a little while. (param: $in_argname)");
  }
}