To add to Leif's post (
http://www.nabble.com/Trouble-using-Gdata-Calendar-to23838933.html#a24191353), I also face a similar problem when using the Gapps API.
When attempting to retrieve a user from the domain,
$user = $gapps->retrieveUser('samwitwicky');
I get the following errors:
Warning: include(Zend/Gdata/Gapps/Extension/UserQuery.php) [function.include]: failed to open stream: No such file or directory in /home/cheeze/public_html/bayclips/library/Zend/Loader.php on line 83
Warning: include() [function.include]: Failed opening 'Zend/Gdata/Gapps/Extension/UserQuery.php' for inclusion (include_path='/home/cheeze/public_html/bayclips/application/../library:/home/cheeze/public_html/bayclips/library:.:/usr/share/php:/usr/share/pear') in /home/cheeze/public_html/bayclips/library/Zend/Loader.php on line 83Suspecting it is a 1.8.4 error, I switched the Gdata library from version 1.7.8, and the code works with no warning. Is this a bug with 1.8.4?