I have a page that existed in MW1.36. When I try to edit it in MW1.37, I get the following error:
[YZ2nMGEWViKbNgf37o7YWwAAAFU] /index.php?title=Orkadian_Book_Reading_Display&action=formedit Error: Class 'Revision' not found
Backtrace:
from /home/<...my wiki directory...>/extensions/PageForms/includes/PF_AutoeditAPI.php(782)
#0 /home/<...my wiki directory...>/extensions/PageForms/includes/PF_AutoeditAPI.php(838): PFAutoeditAPI->getTextForPage(Title)
#1 /home/<...my wiki directory...>/extensions/PageForms/includes/PF_AutoeditAPI.php(121): PFAutoeditAPI->doAction()
#2 /home/<...my wiki directory...>/extensions/PageForms/specials/PF_FormEdit.php(108): PFAutoeditAPI->execute()
#3 /home/<...my wiki directory...>/extensions/PageForms/includes/PF_FormEditAction.php(311): PFFormEdit->printForm(string, string)
#4 /home/<...my wiki directory...>/extensions/PageForms/includes/PF_FormEditAction.php(32): PFFormEditAction::displayForm(PFFormEditAction, Article)
#5 /home/<...my wiki directory...>/includes/MediaWiki.php(538): PFFormEditAction->show()
#6 /home/<...my wiki directory...>/includes/MediaWiki.php(320): MediaWiki->performAction(Article, Title)
#7 /home/<...my wiki directory...>/includes/MediaWiki.php(925): MediaWiki->performRequest()
#8 /home/<...my wiki directory...>/includes/MediaWiki.php(559): MediaWiki->main()
#9 /home/<...my wiki directory...>/index.php(53): MediaWiki->run()
#10 /home/<...my wiki directory...>/index.php(46): wfIndexMain()
#11 {main}If I revert to MW1.36, the formedit works.