[TYPO3] t3lib_pageSelect problems with makeInstance and TYPO3 4.2

[Manuel Rego Casasnovas]

Hello,

I'm trying to create an object of t3lib_pageSelect with next line on a
TYPO3 module at index.php file:
$pageSelect = t3lib_div::makeInstance('t3lib_pageSelect');

But I have this error:
Warning:
t3lib_div::require_once(/var/www/web/t3lib/class.t3lib_pageselect.php)
[function.t3lib-div-require-once]: failed to open stream: No such file
or directory in /var/www/typo3_src-4.2.0/t3lib/class.t3lib_div.php on
line 4614

Fatal error: t3lib_div::require_once() [function.require]: Failed
opening required
'/var/www/web/t3lib/class.t3lib_pageselect.php' (include_path='.:/usr/share/php:/usr/share/pear') in /var/www/typo3_src-4.2.0/t3lib/class.t3lib_div.php on line 4614

Someone knows what I'm doing wrong?
I don't have this error on TYPO3 4.1.

Thanks in advance,
   Rego

-- 
Manuel Rego Casasnovas
Computer Science Engineer
mailto:mrego at igalia.com
Tel: +34 986 10 76 10
Fax: +34 981 91 39 49
Igalia - http://www.igalia.com