XF 2.2 Upgrade crashed, site not accessible

[Frode789]

Tried to upgrade via control panel to latest update (I was already on 2.2 branch, I think it was 2.2.3), but upgrade crashed with the following details:

"
An exception occurred: [Error] Call to undefined method XF\ComposerAutoload::checkPaths() in src/XF.php on line 287

1. XF::registerComposerAutoloadDir() in src/XF/App.php at line 2334
2. XF\App->setupAddOnComposerAutoload() in src/XF/Install/App.php at line 160
3. XF\Install\App->setup() in src/XF.php at line 485
4. XF::setupApp() in src/XF/Install/_upgrader/core.php at line 1184
5. XFUpgraderWeb::create() in install/oc-upgrader.php at line 13

"

Site is not accessible now, "The site is currently being upgraded. Please check back later."

 

[Paul B]

It looks like some files failed to copy.

Download the zip archive from your customer account, extract and upload the files then you should be able to resume the upgrade via /install.

 

[Frode789]

Thanks, worked!