[imp] Upgrade to 5.02 unable to generate message list.

[Simon Brereton]

Since upgrading to Horde 4.0.2 and Imp 5.0.2 with pear upgrade -c horde yesterday, I get the following notifications on screen and in the alerts log when trying to view mail..

The server was unable to generate the message list.[Wed 04 May 2011 11:40:56 AM EST]
Error when communicating with the server.[Wed 04 May 2011 11:40:57 AM EST]
In the horde.log, I see:

2011-05-04T11:40:45-04:00 EMERG: HORDE [imp] Class IMP_Ajax_Queue does not exist [pid 21965 on line 60 of "/usr/share/php/Horde/Injector/Binder/Implementation.php"]
2011-05-04T11:40:46-04:00 EMERG: HORDE [imp] Class IMP_Ajax_Queue does not exist [pid 21949 on line 60 of "/usr/share/php/Horde/Injector/Binder/Implementation.php"]

I think I saw someone with the same issue who fixed it by upgrading with --all-deps, but I don't want to do that because it will install the ldap and other stuff I don't want.  How can I resolve this?

Simon