Blank Page after zammad run rake assets:precompile

Hi, I have this problem: after updating zammad to version 5.0.1.
We ran the command “zammad run rake assets: precompile” but once we did we got a blank page at login! We ran the “Cache.clear” command but we didn’t keep getting blank page!
The only solution was “apt-get install --reinstall zammad” and the system is rebooted.
We tried again by uploading a very simple custom css:

.sidebar.optional {
display: none;

and repeated the operation!
But we had the same problem!
How can we solve?


  • Used Zammad version: 5.0.1
  • Used Zammad installation type: (source, package, docker-compose, …) APT
  • Operating system: Ubuntu 20.04
  • Browser + version: All browser have this problem

You do have Node.js installed on your systemas per Software — Zammad documentation ?

(here’s how: Install from package — Zammad documentation )

Yes we have Node.js installed!!! version 10!

You could try to remove all .css and .js files from the public/ directory and run the precompile again.
Restarting Zammad might help after but shouldn’t™ be required.

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