GC Warning: Failed to expand heap by 4194304 KiB

error:

       … while evaluating attribute 'drv'

         at /nix/store/lxf05zrla99j7c7z65cr7ix19hyq4irv-filnix-experiment-0.10.1/lib/experiment/planner.nix:14:3:

           13| {

           14|   drv = p.drvPath;

             |   ^

           15|   name = p.name;

       … while evaluating the attribute 'drvPath'

         at /nix/store/vkvkng7kjc5v3r7hzgd2rc8y88bc7sw2-source/lib/customisation.nix:418:7:

          417|     // {

          418|       drvPath =

             |       ^

          419|         assert condition;

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

       error: cannot coerce null to a string: null

GC Warning: Failed to expand heap by 4194304 KiB

GC Warning: Failed to expand heap by 4194304 KiB

GC Warning: Failed to expand heap by 4194304 KiB

GC Warning: Failed to expand heap by 4194304 KiB