Dear Maintainer,

*** Reporter, please consider answering these questions, where appropriate ***

   * What led up to the situation?
   * What exactly did you do (or not do) that was effective (or
     ineffective)?
   * What was the outcome of this action?
   * What outcome did you expect instead?

*** End of the template - remove these template lines ***
Log:
...
Need to get 0 B/3474 kB of archives.
After this operation, 15.4 MB of additional disk space will be used.
Download complete and in download only mode
http://deb.debian.org/debian%20bullseye%20main%20contrib%20non-
free/dists/bullseye/contrib/binary-amd64/Release:
2024-04-14 11:10:58 ERRO 404: Not Found.
E: Could not download file: http://deb.debian.org/debian bullseye main contrib
non-free/dists/bullseye/contrib/binary-amd64/Release
E: An unexpected failure occurred, exiting...
P: Begin unmounting filesystems...
P: Saving caches...
Reading package lists... Done
Building dependency tree... Done

Hello Marcelo,

It took some time to respond to this bug report, sorry for that.

How did you encounter this bug?

The following line is unusual:
http://deb.debian.org/debian%20bullseye%20main%20contrib%20non-
free/dists/bullseye/contrib/binary-amd64/Release

Where did the %20 come from? Can you provide your 'lb config' command?

I tried:
lb config -d bullseye --archive-areas "main contrib non-free"
and that works for me.

With kind regards,
Roland Clobus