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POLua error: string expected, got nil
 

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  1. POLua error: string expected, got nil
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    <p>I need help with my scripts. I tried nearly everything, but I can't figure it out what the problem is. I want <code>look.lua</code> to check if <code>str = str.."\nIt's "..getPokemonAge(thing.uid).." old."</code> Returns with nil, then ignores it and goes on with the script.</p> <p>This is the error I get on console:</p> <pre><code>[04/12/2012 20:43:42] [Error - CreatureScript Interface] [04/12/2012 20:43:42] data/creaturescripts/scripts/look.lua:onLook [04/12/2012 20:43:42] Description: [04/12/2012 20:43:42] data/lib/011-string.lua:16: bad argument #1 to 'find' (string expected, got nil) [04/12/2012 20:43:42] stack traceback: [04/12/2012 20:43:42] [C]: in function 'find' [04/12/2012 20:43:42] data/lib/011-string.lua:16: in function '(for generator)' [04/12/2012 20:43:42] data/lib/011-string.lua:16: in function 'explode' [04/12/2012 20:43:42] data/lib/age system.lua:2: in function 'getPokemonYears' [04/12/2012 20:43:42] data/lib/age system.lua:42: in function 'getPokemonAge' [04/12/2012 20:43:42] data/creaturescripts/scripts/look.lua:32: in function &lt;data/creaturescripts/scripts/look.lua:1&gt; </code></pre> <p>011-string.lua</p> <pre><code>local i, pos, tmp, t = 0, 1, "", {} for s, e in function() return string.find(str, sep, pos) end do tmp = str:sub(pos, s - 1):trim() table.insert(t, tmp) pos = e + 1 i = i + 1 end </code></pre> <p>look.lua</p> <pre><code>str = str.."\nIt's "..getPokemonAge(thing.uid).." old." </code></pre> <p>age system.lua</p> <pre><code>function getPokemonYears(pokeball) local data = string.explode(getItemAttribute(pokeball, "pokeballinfo"), "/") -- data[1] = dia, data[2] = mes, data[3] = ano local yearnow = math.floor(tonumber(os.date("%Y"))) local monthnow = math.floor(tonumber(os.date("%m"))) local daynow = math.floor(tonumber(os.date("%d"))) local ano = math.floor(tonumber(data[3])) local mes = math.floor(tonumber(data[2])) local dia = math.floor(tonumber(data[1])) local years = 0 if yearnow == ano then years = monthnow-mes end if yearnow &gt; ano then years = (12-mes) + monthnow end return years end function getPokemonMonths(pokeball) local data = string.explode(getItemAttribute(pokeball, "pokeballinfo"), "/") local yearnow = math.floor(tonumber(os.date("%Y"))) local monthnow = math.floor(tonumber(os.date("%m"))) local daynow = math.floor(tonumber(os.date("%d"))) local ano = math.floor(tonumber(data[3])) local mes = math.floor(tonumber(data[2])) local dia = math.floor(tonumber(data[1])) if (yearnow == ano) and (monthnow==mes) and (daynow&lt;dia+2.5) then months = 0 end if (yearnow == ano) and (monthnow==mes) and (daynow&gt;dia+2.5) then months = (daynow-dia)/2.5 end if (yearnow == ano) and (monthnow&gt;mes) then months = math.floor((30-dia)/2.5) + daynow/2.5 end if (yearnow &gt; ano) then days = math.floor(monthnow*30+daynow) months = math.floor(days/2.5) end if tostring(months):len() &gt; 3 then months2 = tonumber(string.sub(tostring(months), 1, 3)) else months2 = months end return months end function getPokemonAge(pokeball) return ""..getPokemonYears(pokeball).." year, "..getPokemonMonths(pokeball).." months" end </code></pre>
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    1. USASpellen Kevin
    1. USASpellen Kevin
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      1. POLua error: string expected, got nil
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    2. VO
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    1. COIt sounds like `getItemAttribute(pokeball, "pokeballinfo")` is returning `nil`.
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      1. USKevin Ballard
    2. CObut how to if returning nil to just ignore and proceed if not retirning nil then vieuw
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      1. USASpellen Kevin
    3. CObut how to if returning nil to just ignore and proceed so when not nil then return ""..getPokemonYears(pokeball).." year, "..getPokemonMonths(pokeball).." months" and when its returning nil then not do str = str.."\nIt's "..getPokemonAge(thing.uid).." old."
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      1. POLua error: string expected, got nil
      1. USASpellen Kevin
 

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