sudo nixos-install  --show-trace
\building the configuration in /mnt/etc/nixos/configuration.nix...
error: while evaluating the attribute 'config.system.build.toplevel' at /nix/var/nix/profiles/per-user/root/channels/nixos/nixos/lib/eval-config.nix:64:5:
while evaluating 'evalModules' at /nix/var/nix/profiles/per-user/root/channels/nixos/lib/modules.nix:63:17, called from /nix/var/nix/profiles/per-user/root/channels/nixos/nixos/lib/eval-config.nix:58:12:
while evaluating 'mapAttrsRecursiveCond' at /nix/var/nix/profiles/per-user/root/channels/nixos/lib/attrsets.nix:293:36, called from /nix/var/nix/profiles/per-user/root/channels/nixos/lib/modules.nix:140:28:
while evaluating 'recurse' at /nix/var/nix/profiles/per-user/root/channels/nixos/lib/attrsets.nix:295:23, called from /nix/var/nix/profiles/per-user/root/channels/nixos/lib/attrsets.nix:303:8:
while evaluating the attribute 'matchedOptions' at /nix/var/nix/profiles/per-user/root/channels/nixos/lib/modules.nix:427:14:
while evaluating 'flip' at /nix/var/nix/profiles/per-user/root/channels/nixos/lib/trivial.nix:138:16, called from /nix/var/nix/profiles/per-user/root/channels/nixos/lib/modules.nix:395:23:
while evaluating 'byName' at /nix/var/nix/profiles/per-user/root/channels/nixos/lib/modules.nix:364:25, called from /nix/var/nix/profiles/per-user/root/channels/nixos/lib/modules.nix:383:21:
while evaluating 'reverseList' at /nix/var/nix/profiles/per-user/root/channels/nixos/lib/lists.nix:393:17, called from /nix/var/nix/profiles/per-user/root/channels/nixos/lib/modules.nix:132:33:
while evaluating anonymous function at /nix/var/nix/profiles/per-user/root/channels/nixos/lib/modules.nix:253:37, called from /nix/var/nix/profiles/per-user/root/channels/nixos/lib/modules.nix:128:25:
while evaluating 'filterModules' at /nix/var/nix/profiles/per-user/root/channels/nixos/lib/modules.nix:243:36, called from /nix/var/nix/profiles/per-user/root/channels/nixos/lib/modules.nix:254:7:
while evaluating anonymous function at /nix/var/nix/profiles/per-user/root/channels/nixos/lib/modules.nix:247:31, called from undefined position:
while evaluating the attribute 'disabled' at /nix/var/nix/profiles/per-user/root/channels/nixos/lib/modules.nix:225:13:
while evaluating the attribute 'disabled' at /nix/var/nix/profiles/per-user/root/channels/nixos/lib/modules.nix:225:13:
while evaluating 'loadModule' at /nix/var/nix/profiles/per-user/root/channels/nixos/lib/modules.nix:189:53, called from /nix/var/nix/profiles/per-user/root/channels/nixos/lib/modules.nix:230:22:
while evaluating 'isFunction' at /nix/var/nix/profiles/per-user/root/channels/nixos/lib/trivial.nix:342:16, called from /nix/var/nix/profiles/per-user/root/channels/nixos/lib/modules.nix:190:12:
opening file '/nix/store/vbc26ysyyh3qpy0ip1ybj6lmn2sb0bai-source': No such file or directory