Modding Help "bad argument #1 to 'for iterator' " Error

While attempting to program a custom weapon (specifically a revived Pulse Rifle from the Koala versions) I've encountered an error that I cannot figure out how to solve:

Code:

[16:05:24.647] [Error] Exception while calling script init: (LuaException) Error code 2, [string "/items/active/weapons/weapon.lua"]:298: bad argument #1 to 'for iterator' (table expected, got nil)
stack traceback:
    [C]: in ?
    [C]: in for iterator 'for iterator'
    [string "/items/active/weapons/weapon.lua"]:298: in function <[string "/items/active/weapons/weapon.lua"]:297>
    (...tail calls...)
    [string "/items/active/weapons/ranged/gun.lua"]:14: in function <[string "/items/active/weapons/ranged/gun.lua"]:5>

The following is the .activeitem code I'm using for the Pulse Rifle:

Code:

{
  "itemName" : "pulserifle",
  "price" : 150,
  "maxStack" : 1,
  "rarity" : "Uncommon",
  "description" : "A high-tech rifle, perfect for kicking some serious alien!",
  "shortdescription" : "Pulse Rifle",
  "tooltipKind" : "gun",
  "weaponType" : "Pulse Rifle",
  "twoHanded" : true,
  "itemTags" : ["weapon","ranged","pulserifle"],
  "level" : 1,

  "animation" : "/items/active/weapons/ranged/gun.animation",
  "animationParts" : { },
  "animationCustom" : { },
  "baseOffset" : [-1.0, 0.25],
  "muzzleOffset" : [0.0, 0.3125],

  "scripts" : ["/items/active/weapons/ranged/gun.lua"],

  "primaryAbility" : {
    "fireTime" : [0.13, 0.06],
    "baseDps" : [7, 8],
    "energyUsage" : 15,
    "inaccuracy" : 0.035,

    "fireType" : "auto",

    "projectileType" : "standardbullet",
    "projectileParameters" : {
      "knockback" : [4,8]
    }
  },
  "fireSounds" : [ "/sfx/gun/pulserifle1.ogg", "/sfx/gun/pulserifle2.ogg" ],

  "stances" : {
    "idle" : {
      "armRotation" : 0,
      "weaponRotation" : 0,
      "twoHanded" : true,

      "allowRotate" : true,
      "allowFlip" : true
    },
    "fire" : {
      "duration" : 0,
      "armRotation" : 3,
      "weaponRotation" : 3,
      "twoHanded" : true,

      "allowRotate" : false,
      "allowFlip" : false
    },
    "cooldown" : {
      "duration" : 0.05,
      "armRotation" : 3,
      "weaponRotation" : 3,
      "twoHanded" : true,

      "allowRotate" : false,
      "allowFlip" : false
    }
  },

  "builder" : "/items/buildscripts/buildweapon.lua",
  "builderConfig" : [{
    "nameGenerator" : "assaultnames.config:nameGen",
    "elementalType" : [
      "physical",
      "fire",
      "ice",
      "electric",
      "poison"
      ],

    "animationParts" : {
      "butt" : {
        "path" : "/items/active/weapons/ranged/revived/pulserifle/butt/<variant>.png",
        "variants" : 3,
        "paletteSwap" : true
      },
      "middle" : {
        "path" : "/items/active/weapons/ranged/revived/pulserifle/middle/<variant>.png",
        "variants" : 3,
        "paletteSwap" : true
      },
      "barrel" : {
        "path" : "/items/active/weapons/ranged/revived/pulserifle/barrel/<variant>.png",
        "variants" : 3,
        "paletteSwap" : true
      },
      "muzzleFlash" : "/items/active/weapons/ranged/muzzleflash.png"
    },
    "gunParts" : ["butt", "middle", "barrel"],
    "altAbilities" : [
      "/items/active/weapons/ranged/altabilities/explosiveshot/explosiveshot.altability",
      "/items/active/weapons/ranged/altabilities/grenadelauncher/grenadelauncher.altability"
    ],
    "palette" : "/items/active/weapons/colors/pulserifle.weaponcolors",
    "iconDrawables" : ["butt", "middle", "barrel"]
  }]
}

Does anyone know of a solution to this error?

~Zed

 

Hello,

I am not sure if this relates to your problem, but you use .altability files, but in vanilla version I do only find .weaponability files
Could you explain that to me?

 

Problem in the script that handles your weapon. (weapon.lua/ranged.lua)
Somewhere along the lines, a function in either script is being passed a nil value whereas the operation requires a table variable.

Assuming your gun uses only vanilla abilities, probably the weapon has a property omitted that is needed. Compare it to vanilla files to see what you're missing.

If I find it myself, I'll post the culprit in question.

 

I think I figured out the problem:

At the "stances" section I had a "}" on the line above; it should have been placed after the section. It was a subtle error that I only found with a text compare website.

I investigated that and realized the difference in earlier Giraffe versions compared to Cheerful Giraffe. I made that fix and it appears to have contributed to the solution.

Anyway, those changes should solve the problem. I'll give a heads-up if it continues with anything else.