Failed to load mods: creative-mod/data.lua:6: creative-mod/prototypes/entity.lua:1102: attempt to call global 'flying_robot_sounds' (a nil value)
stack traceback:
creative-mod/prototypes/entity.lua:1102: in main chunk
[C]: in function 'require'
creative-mod/data.lua:6: in main chunk
stack traceback:
[C]: in function 'require'
creative-mod/data.lua:6: in main chunk

Yeah I got this too, I think is due the sounds update
Maybe now this is the correct line for that:
working_sound = sounds.flying_robot(0.5)

Unsure what the deal is, but matching the entry from the base entities.lua still throws the error, but removing the lines completely bypasses the error (but I assume would then be missing the sound?).

flying_robot_sounds() seems to be a missing function to setup the sound list. I fixed my version by replace the whole line

working_sound=flying_robot_sounds()

with

        working_sound = {
            sound = {
                filename = "__base__/sound/flying-robot-1.ogg",
                volume = 0
            },
            max_sounds_per_type = 3
        },

It should only play one of the 9 defined but works.

Should I report this as a bug perhaps? Seems like the random sounds are only possible in base mod?

Thanks for reporting and troubleshooting!
I've uploaded a new release that hopefully fixes these errors.

seems to be working fine again with 0.18.2! thx jodli! :)

@jodli were you able to match the (randomized) base mod style sounds? If so, what was the trick?

thanks for the update jodli. it's much appreciated.

malventano they just re-created the function locally

Yeah I just duplicated it.
Glad it works now! :)