I'm getting the following error during the migration:-
[wiki@hz25 mediawiki]$ php maintenance/update.php --skip-config-validation
PHP Fatal error: Uncaught Exception: Unable to open file /home/wiki/htdocs/mediawiki/extensions/MagicNoCache/extension.json: filemtime(): stat failed for /home/wiki/htdocs/mediawiki/extensions/MagicNoCache/extension.json in /home/wiki/htdocs/mediawiki/includes/registration/ExtensionRegistry.php:199
Stack trace:
#0 /home/wiki/htdocs/mediawiki/includes/GlobalFunctions.php(49): ExtensionRegistry->queue()
#1 /home/wiki/htdocs/mediawiki/LocalSettings.php(142): wfLoadExtension()
#2 /home/wiki/htdocs/mediawiki/includes/Setup.php(218): require_once('...')
#3 /home/wiki/htdocs/mediawiki/maintenance/doMaintenance.php(83): require_once('...')
#4 /home/wiki/htdocs/mediawiki/maintenance/update.php(312): require_once('...')
#5 {main}
thrown in /home/wiki/htdocs/mediawiki/includes/registration/ExtensionRegistry.php on line 199