lua - 尝试调用 nil 值（字段“Draw3DText”）

Question

我在 cl_main.lua 中有这个“功能”：

Citizen.CreateThread(function()
   for i = 1, #Config.SpecialStores do
      local Blip = AddBlipForCoord(Config.SpecialStores[i].Coords);
      SetBlipSprite (Blip, Config.SpecialStores[i].Blip[1]);
      SetBlipDisplay(Blip, 4);
      SetBlipScale  (Blip, Config.SpecialStores[i].Blip[3]);
      SetBlipColour (Blip, Config.SpecialStores[i].Blip[2]);
      SetBlipAsShortRange(Blip, true);
      BeginTextCommandSetBlipName('STRING');
      AddTextComponentString(Config.SpecialStores[i].Label);
      EndTextCommandSetBlipName(Blip)       
   end
   while true do
      local sleepThread, Player = 1500, PlayerPedId();
      while not Stores.Interiors do
         Citizen.Wait(100)
      end
      if (GetInteriorFromEntity(Player) ~= 0) then
         for _, Data in pairs(Stores.Interiors) do
            if (GetInteriorFromEntity(Player) == Data.InteriorId) then
               sleepThread = 5;
               local Dst = #(GetEntityCoords(Player) - Data.Checkout);
               if Dst < 15.0 then
                  Utils.Draw3DText(Data.Checkout,'~g~E~w~ ');
                  if Dst < 1.0 and IsControlJustReleased(0, 38) then
                     Stores.OpenStore()
                  end
               end
               if IsPedArmed(Player, 7) and Data.Robbable then
                  if IsPlayerFreeAiming(PlayerId()) then
                     local Retval, Entity = GetEntityPlayerIsFreeAimingAt(PlayerId());
                     if Retval and GetEntityModel(Entity) == GetHashKey('mp_m_shopkeep_01') then
                        Stores.StartRobbing({
                           InteriorId = Data.InteriorId,
                           Cashier = Entity
                        })
                     end
                  else
                     local Retval, Entity = GetPlayerTargetEntity(PlayerId());
                     if Retval and GetEntityModel(Entity) == GetHashKey('mp_m_shopkeep_01') then
                        Stores.StartRobbing({
                           InteriorId = Data.InteriorId,
                           Cashier = Entity
                        })
                     end
                  end
               end
            end
         end
      end

然后我回到f8“尝试调用一个零值（字段'Draw3DText'）”
我试图像“Utils = {}”一样在顶部制作，因为我明白它是返回一个零的“utils” . 有人知道如何解决这个问题吗？