How to fix Nextcloud Step ... is currently in process. Please call this command later.

Problem:

While trying to update Nextcloud using the command line (e.g. SSH) using a command like

php updater/updater.phar

you see the following error message:

Nextcloud Updater - version: v20.0.0beta4-11-g68fa0d4

Step 5 is currently in process. Please call this command later.

Solution

No matter if the step that appears to be currently in progress is Step 3, Step 5 or any other step, the solution is always the same: Reset the update by deleting the data/updater-occ[random-string] folder. Recommended: If you are paranoid about losing data, just rename the directory:

mv data/updater-occ* ../DELETEME-updater

Not recommended: You can also just delete the directory

rm -rf data/updater-occ*