Failed to load mods: Error while loading item prototype "brine-barrel" (item): Must have a fuel_value when fuel_acceleration_multiplier, fuel_top_speed_multiplier, fuel_emissions_multiplier, or fuel_glow_color are used.
Modifications: Base mod › Planet Pelagos

Hmm might be a bug from another mod, although that one is not mentioned in the modifications:
https://mods.factorio.com/mod/alchemy-khemia/discussion/6928c3089d17ce4032403496

Yeah, it was related to my mod

I had a fluid prototype with the fuel_value set to "0J"

That was causing issues in "barrel-fuel.lua".
I think it's expecting a fuel_value to be either >0 or nil, and doesn't like getting exactly zero

I fixed it on my end by removing the fuel value from the prototype, but it might be work looking into?

Yea i don't check for 0 in code.
I just make barreled fuel if fuel vallue is present because why add fuel vallue at all if it's 0?

So far I see this issue first time

But you are right. I will cover this in code in next update

fixed
0 as fuel vallue should not be issue with versions 0.27.3 +