Error while running event Transport_Drones::on_tick (ID 0)
Unknown fluid name: solid-petroleum-gas
stack traceback:
    Transport_Drones/script/depots/request_depot.lua:321: in function 'get_fuel_amount'
    Transport_Drones/script/depots/request_depot.lua:108: in function 'check_fuel_amount'
    Transport_Drones/script/depots/request_depot.lua:216: in function 'update'
    Transport_Drones/script/depot_common.lua:273: in function 'update_depots'
    Transport_Drones/script/depot_common.lua:281: in function 'handler'
    core/lualib/event_handler.lua:47: in function <core/lualib/event_handler.lua:45>
stack traceback:
    [C]: in function 'get_fluid_count'
    Transport_Drones/script/depots/request_depot.lua:321: in function 'get_fuel_amount'
    Transport_Drones/script/depots/request_depot.lua:108: in function 'check_fuel_amount'
    Transport_Drones/script/depots/request_depot.lua:216: in function 'update'
    Transport_Drones/script/depot_common.lua:273: in function 'update_depots'
    Transport_Drones/script/depot_common.lua:281: in function 'handler'
    core/lualib/event_handler.lua:47: in function <core/lualib/event_handler.lua:45>