Uncaught exception 'Zend_Exception'

[kiwibob]

And another oddity now with Zend Google Data APIs v 1.11.4. Using the
svn version 427

The Zend api works fine without eAccelerator.

[Wed Mar 09 11:39:50 2011] [error] [client 210.48.92.3] PHP Fatal
error: Uncaught exception 'Zend_Exception' with message 'File "Zend/
Gdata/Calendar/Extension/EventEntry.php" does not exist or class
"Zend_Gdata_Calendar_Extension_EventEntry" was not found in the file'
in /var/www/pfgnz/library/Zend/Loader.php:99\nStack trace:\n#0 /var/
www/pfgnz/library/Zend/Gdata/App.php(1052):
Zend_Loader::loadClass('Zend_Gdata_Cale...')\n#1 /var/www/pfgnz/
components/com_rsbook_pro13/svgcal.php(74): Zend_Gdata_App-
>__call('newEventEntry', Array)\n#2 /var/www/pfgnz/components/
com_rsbook_pro13/svgcal.php(74): Zend_Gdata_Calendar->newEventEntry()
\n#3 /var/www/pfgnz/components/com_rsbook_pro13/functions2.php(321):
SVGCal->createEvent('Robert Gray', 'A booking for Z...', '',
'2011-08-31', '06:00:00', '2011-08-31', '07:00:00')\n#4 /var/www/pfgnz/
components/com_rsbook_pro13/rsbook_pro13_user_gad.php(529):
addToCalendar('467', Object(stdClass))\n#5 /var/www/pfgnz/components/
com_rsbook_pro13/rsbook_pro13.php(352): include('/var/www/pfgnz/...')
\n#6 /var/www/pfgnz/libraries/joomla/application/component/
helper.php(1 in /var/www/pfgnz/library/Zend/Loader.php on line 99,
referer: http://www.pfgnz.info/booking-screen/booking-screen-gad