You need to add "ammo_type": [ "bfeed" ] to AMMO node with id=bfeedfuelin \data\mods\blazemod\blaze_blob.json file.
The result node will look like this:
[
{
"id": "bfeedfuel",
"type": "AMMO",
"category": "fuel",
"name": "liquified blob feed",
"name_plural": "bfeedfuel",
"description": "Liquified blob feed, useful for fueling certain blob based vehicle parts",
"weight": 50,
"volume": 1,
"price": 40,
"price_postapoc": 800,
"phase": "liquid",
"container": "jerrycan",
"material": "hydrocarbons",
"fuel": { "energy": 35 },
"symbol": "=",
"color": "red",
"ammo_type": [ "bfeed" ],
"count": 250,
"stack_size": 250,
"range": 4,
"damage": 5,
"pierce": 5
}
Please note that it will only remove warning - I don’t know what will be changed game wise.