NixOS rebuild failed with error

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1

Error:
error:
… while calling the ‘head’ builtin
at /nix/var/nix/profiles/per-user/root/channels/nixos/lib/attrsets.nix:1574:11:
1573| || pred here (elemAt values 1) (head values) then
1574| head values
| ^
1575| else

   … while evaluating the attribute 'value'
     at /nix/var/nix/profiles/per-user/root/channels/nixos/lib/modules.nix:816:9:
      815|     in warnDeprecation opt //
      816|       { value = addErrorContext "while evaluating the option `${showOption loc}':" value;
         |         ^
      817|         inherit (res.defsFinal') highestPrio;

   (stack trace truncated; use '--show-trace' to show the full trace)

   error:
   Failed assertions:
   - The option definition `sound' in `/etc/nixos/configuration.nix' no longer has any effect; please remove it.
   The option was heavily overloaded and can be removed from most configurations.

   - The option definition `hardware.opengl.driSupport' in `/etc/nixos/configuration.nix' no longer has any effect; please remove it.
   The setting can be removed.

While I understand the last part, I don’t understand first part of the error message.
Also I just switched to 24.11 channel. What am I doing wrong?

2

sound.enable and some other sound.* options were renamed/removed (and you don’t need it unless you use ALSA).
See release notes for details.