What's the solution for this:

evaluation warning: Unknown ruff version: '0.8.5'. Please update getCargoHash.
evaluation warning: Unknown ruff version: '0.8.5'. Please update getRepoHash.
error:
       … while evaluating the attribute 'drvPath'
         at /nix/store/m6rqnw8hy8r6nv4avq0qzsi50crqh0q4-source/lib/customisation.nix:416:7:
          415|     // {
          416|       drvPath =
             |       ^
          417|         assert condition;

       … while calling the 'derivationStrict' builtin
         at <nix/derivation-internal.nix>:34:12:
           33|
           34|   strict = derivationStrict drvAttrs;
             |            ^
           35|

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

       error: hash mismatch in fixed-output derivation '/nix/store/h9ycnmcakyrsd2hqpqp83gk21a2dccpk-source.drv':
         specified: sha256-AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA=
            got:    sha256-Y6J7hW+VYePhKH+5YXfuGuVB0WjYjUg8mM3kQBUnv/U=