Migration from oc to nextcloud 12.0.5 fails

My second try to migrate from owncloud to nextcloud looks basically the same as the last:

Updates between multiple major versions and downgrades are unsupported.

I’m trying to migrate from owncloud to nextcloud 12.0.5. I deleted all stuff from the oc folder except of the the config folder and copied all files from nextcloud except the config folder. Then I invoked the update script from bash. In the video this works pretty fine…

Any hints are highly appreciated!

Have a look at this:

Worked like a charm - thx!