TFS 1.X+ Attempt to compare nil with number

[peteralto]

This appears when this boss (World Devourer) tries to create the summons:

Lua Script Error: [Spell Interface]
data/spells/scripts/monster/devourer summon.lua:onCastSpell
data/spells/scripts/monster/devourer summon.lua:13: attempt to compare nil with number
stack traceback:
    [C]: in function '__lt'
    data/spells/scripts/monster/devourer summon.lua:13: in function <data/spells/scripts/monster/devourer summon.lua:8>

Here is the code of data\spells\scripts\monster\devourer summon.lua

local combat = Combat()
combat:setParameter(COMBAT_PARAM_TYPE, COMBAT_NONE)
combat:setParameter(COMBAT_PARAM_EFFECT, CONST_ME_NONE)

local area = createCombatArea(AREA_CIRCLE2X2)
combat:setArea(area)

function onCastSpell(creature, var)

    local creatures = {"Greed", "Frenzy", "Disruption"}
    local monster = creatures[math.random(#creatures)]

    if devourerSummon < 3 then
        Game.createMonster(monster, {x=creature:getPosition().x+math.random(-1, 1), y=creature:getPosition().y+math.random(-1, 1), z=creature:getPosition().z}, false, true)
        devourerSummon = devourerSummon + 1
    end

    return combat:execute(creature, var)
end

 

[Sasyia]

You need to declare devourerSummon variable before checking value in line 13

 

[peteralto]

You need to declare devourerSummon variable before checking value in line 13

I declared with the value 0, is there a problem?
Thanks.

 

[Sasyia]

Where did you declare it? It should look like:
local devourerSummon
or even initialize it
local devourerSummon = 0

 

[peteralto]

Where did you declare it? It should look like:
local devourerSummon
or even initialize it
local devourerSummon = 0

I did it that way.