I can't place a campfire?

[Potwizz「ポトーリズ」]

I was dying from the cold, so naturally I wanted to place a campfire, but I couldn't place it anywhere...?

[Sigzel]

perhaps in a building blocked zone? too close to a rad town? Above a cave blocked zone?

[Gilette Abdi]

Guess you were to close to a monument (such as the Mining Outpost)