Problem with custom script buying spells from shops

[Argentine]

My trigger is below.

The problem is i get this message "trigger disabled due to an error": Line 168 "Invalid type for specified operator."

The line it refers to is: Custom Script: exitwhen (GetItemTypeId(udg_tmpItem) == udg_spellItemId[udg_tmpInt])

Can someone check this out and help me figure out the issue? I have all the required integers and other triggers.

• Hero Buys Spell
  • Events
    • Unit - A unit Sells an item (from shop)
  • Conditions
  • Actions
    • Set tmpItem = (Sold Item)
    • Set tmpUnit = (Buying unit)
    • -------- Lets determine which spell was bought. --------
    • For each (Integer A) from 0 to 3, do (Actions)
      • Loop - Actions
        • Set tmpInt = (Integer A)
        • -------- Custom script to exit the loop when the right 'spell' was found. --------
        • Custom script: exitwhen (GetItemTypeId(udg_tmpItem) == udg_spellItemId[udg_tmpInt])
    • -------- The right sold spells is found. --------
    • -------- Now lets determine whether the buying hero already has this spells learnt or not. --------
    • If (All Conditions are True) then do (Then Actions) else do (Else Actions)
      • If - Conditions
        • (Level of realSpellId[tmpInt] for tmpUnit) Equal to 0
      • Then - Actions
        • -------- The hero does not have this spell. Lets 'learn' the spell. --------
        • Unit - Add realSpellId[tmpInt] to tmpUnit
      • Else - Actions
        • -------- The hero has this spell. --------
        • -------- We have to determine whether it's an one level ultimate or a regular spell. --------
        • If (All Conditions are True) then do (Then Actions) else do (Else Actions)
          • If - Conditions
            • realSpellId[tmpInt] Equal to Storm, Earth, And Fire
          • Then - Actions
            • -------- The spell was an ultimate. As it's a one level spell, we have to refund the gold. --------
            • Player - Add 450 to (Owner of tmpUnit) Current gold
          • Else - Actions
            • -------- The spell was not an ultimate. --------
            • -------- We have to determine whether the normal spell is maxed out or not. --------
            • If (All Conditions are True) then do (Then Actions) else do (Else Actions)
              • If - Conditions
                • (Level of realSpellId[tmpInt] for tmpUnit) Equal to 3
              • Then - Actions
                • -------- The spell is maxed out. Give gold back. --------
                • Player - Add 150 to (Owner of tmpUnit) Current gold
              • Else - Actions
                • -------- The spell is not maxed out. Increase the level of the spell. --------
                • Unit - Increase level of realSpellId[tmpInt] for tmpUnit

 

[ZiggyMcjoney]

What kind of variable is spellItemId?

 

[mylemonblue]

Integer I wager.

Does the system require NewGen or JassHelper?

 

[Argentine]

Oooh... it may require something like that. I'm using WE.

I need some way to make the player able to buy abilities with plain WE.


SpellItemId is an item variable.