Re: Warning: Class '…' not found in …
From semantic-mediawiki.org
Fragment of a discussion from Help talk:Installation
As for lagacy jobs, see [1].
[1] https://github.com/SemanticMediaWiki/SemanticMediaWiki/pull/86
Thanks for fixing this. I have now set the target date for 1.9.0.2 to be this Sunday, as this is a fix we want to get out there.
Thanks for this (especially at such a short notice)! I thought at first it was a test but now I realise it's a fix!
To wrap up, I just did a successful SMW upgrade on MediaWiki 1.22, without any outstanding issues though "Initialise or upgrade tables" may not succeed in one go (memory issues most likely). I need to revert now to SMW 1.8.0.5 as SF is not yet compatible with this release, but I'm hopeful that everything will work out.