如何修复“尝试调用方法 'addMoney'（零值）”错误？

Question

我有两个 .lua 文件，一个名为 sv_money.lua，另一个名为 economy.lua

sv_money.lua中的代码是：

local meta = FindMetaTable("Player")
local PlayersMoney = {}

function meta:addMoney(amount)
    if not amount then return false end

    PlayersMoney[self:SteamID64()] = PlayersMoney[self:SteamID64()] + amount
end

并且在 economy.lua 中：

for k, v in pairs(player.GetAll()) do
    v:addMoney(60)
    Notify(v, "You've received 60€.", 5, "Generic" )
end

预期结果是播放器屏幕上的通知 "You've received..." 但实际结果是错误：

Lua Error: [ERROR] addons/economy/lua/autorun/economy.lua:63: attempt to call method 'addMoney' (a nil value)
    1. unknown - addons/economy/lua/autorun/economy.lua:63

出于未知原因，economy.lua 中的这段代码有效：

hook.Add("PlayerSpawnProp", "Cost", function(ply, class)
        if not ply:canAfford(10) then
            Notify(ply, "You don't have enough money !", 5, "Error" )
            return false
        else
            Notify(ply, "You've spent 10€ to spawn this prop.", 5, "Generic" )
            ply:addMoney(-10)
            return true
        end
end)

Answer 1

问题是 economy.lua 是在客户端执行的，而我的代码是在服务器端执行的。

如何修复“尝试调用方法 'addMoney'（零值）”错误？

How to fix 'attempt to call method 'addMoney' (a nil value)' error?

lua

garrys-mod