Thread:Help talk:Installation/Re: Warning: Class '…' not found in …/reply (2)

Thanks. As I don't have shell access, I'm using the tarball. Maps and Semantic Maps, on the other hand, require Validator, right? Anyway, commenting out both Validator and DataValues works, except for a couple of errors: Before I make any Bugzilla reports, though, I'll focus first on upgrading to MW 1.22.
 * 1) The web page appears twice, except that the content for the second one contains the message "Invalid job command `SMWUpdateJob`", followed by a backtrace pointing for instance to " .../includes/job/JobQueue.php(189): Job::factory('SMWUpdateJob', Object(Title), false, '5379311')". Perhaps this will sort itself out once a data refresh process is finalised, but it will take some time to find out.
 * 2) Secondly, there is an error report at the bottom of the page saying "Warning: Cannot modify header information" - headers already sent by (output started at .../includes/OutputPage.php:1987) in .../includes/WebResponse.php on line 38"
 * 3) Thirdly, Semantic Forms no longer works, due to issues concerning "'Serialization of 'Closure'".