@mdoggydog
I am using MediaWiki 1.37 and have set up this extension using composer. I am seeing the following error
[YidklSqHVG68-iRmgGiwzwAAAFA] /view/Special:PluggableAuthLogin Error: Call to undefined method MediaWiki\Auth\AuthManager::singleton()
Backtrace:
from /var/www/vhosts/mywebsite.com/httpdocs/w/extensions/DiscourseSsoConsumer/src/DiscourseSsoConsumer.php(132)
#0 /var/www/vhosts/mywebsite.com/httpdocs/w/extensions/PluggableAuth/includes/PluggableAuthLogin.php(36): MediaWiki\Extension\DiscourseSsoConsumer\DiscourseSsoConsumer->authenticate()
#1 /var/www/vhosts/mywebsite.com/httpdocs/w/includes/specialpage/SpecialPage.php(647): PluggableAuthLogin->execute()
#2 /var/www/vhosts/mywebsite.com/httpdocs/w/includes/specialpage/SpecialPageFactory.php(1366): SpecialPage->run()
#3 /var/www/vhosts/mywebsite.com/httpdocs/w/includes/MediaWiki.php(314): MediaWiki\SpecialPage\SpecialPageFactory->executePath()
#4 /var/www/vhosts/mywebsite.com/httpdocs/w/includes/MediaWiki.php(930): MediaWiki->performRequest()
#5 /var/www/vhosts/mywebsite.com/httpdocs/w/includes/MediaWiki.php(564): MediaWiki->main()
#6 /var/www/vhosts/mywebsite.com/httpdocs/w/index.php(53): MediaWiki->run()
#7 /var/www/vhosts/mywebsite.com/httpdocs/w/index.php(46): wfIndexMain()
#8 {main}