So I got this error and I cant seem to fix it.
Can anyone tell me how to fix it?
The error was : Attempt to concatenate string with Instance.
Image of the full error
The function:
function chatfunc(msg) -- < error line 523
coroutine.wrap(function()
local amountsofchats = 0
for i,v in pairs(workspace:GetChildren()) do
if v.Name == "amogus"..plr then
amountsofchats += 1
end
end
if amountsofchats >= 5 then
return
end
for i,v in pairs(workspace:GetChildren()) do
if v.Name == "amogus"..plr then
v.StudsOffset += Vector3.new(0,2,0)
end
end
...
The second error thing:
game:GetService("Players")[Username].Chatted:Connect(function(msg)
local msg,Message_ = msg,msg
if string.sub(msg,1,3) == "/e " then
msg = string.sub(msg,4)
end
chatfunc(msg) -- < error line 717
end)
You are getting this error because are you trying to concat a string with an instance for example "string" .. Instance.new("Part").
Now since you didnt give any lines numbers with your code, I am assuming "amogus"..plr is what causes the error, since plr is here an instance you probably ment to do "amogus"..plr.Name which is concatting two strings
Also
i do not recommend doing this at all game:GetService("Players")[Username] if the user has name which is a property of Players service u will get the property instead of the player. for example if you have the username MaxPlayers that will return a number and not the player with that name thus your code will error. So I recommend doing game:GetService("Players"):FindFirstChild(Username)
Related
This script is designed so that when you say "!kick [user]" it kicks that user from the game. But, when I test it out, nothing happens with no errors in the output box. Whats going on?
game.Players.PlayerAdded:Connect(function(player)
player.Chatted:Connect(function(player,message)
if player.Name == "playername" then
local words = string.split(message," ")
if string.lower(words[1]) == "!kick" then
words[2]:Kick("You have been kicked.")
end
end
end)
end)
Thanks
The reason nothing is happening right now is because your very first check is failing. You have the parameters for the Player.Chatted connection backwards. The message comes first and the recipient comes second. So what you've named player is actually the message and if player.Name == "playername" then is likely failing because strings don't have a Name property and player.Name is nil.
After that, the next issue you will run into is that after you've split the command into two parts, the second half of the command is still a string, and not a Player. So you need to find a Player with a matching name as the input string.
Try something like this:
local Players = game.Players
local function findPlayerByName(name)
-- escape if nothing is provided
if name == nil then
return nil
end
-- check if any players match the name provided
local allPlayers = Players:GetPlayers()
for _, player in ipairs(allPlayers) do
if player.Name == name or string.lower(player.Name) == name then
return player
end
end
-- couldn't find any players that matched
return nil
end
-- define all the players that can use commands
local admins = {
["playername"] = true,
}
Players.PlayerAdded:Connect(function(player)
player.Chatted:Connect(function(message, recipient)
if admins[player.Name] then
local words = string.split(message, " ")
local cmd = string.lower(words[1])
if cmd == "!kick" then
local playerName = words[2]
local targetPlayer = findPlayerByName(playerName)
if targetPlayer then
targetPlayer:Kick("You have been kicked.")
end
end
end
end)
end)
local bigDaddy = 'bruh'
if bigDaddy ~= true then
for i=1, 3 do
bigDaddy = typeof(bigDaddy) ~= 'string' and 'bruh'..i or 1
end
end
friend gave me as a challenge but I cant seem to get anywhere, any help?
In Lua typeof isn't a predefined function. To get the type of a value, the type function should be used instead.
so im gettin this error so i know theres something i probably gotta fix here but i have no idea how .thanks
SCRIPT ERROR: #gcphone/server/server.lua:205: attempt to index a nil value (local 'items')
CODE FROM LINE 205
ESX.RegisterServerCallback('crew-phone:phone-check', function(source, cb)
local xPlayer = ESX.GetPlayerFromId(source)
if not xPlayer then return; end
for k, v in pairs(Config.Phones) do
local items = xPlayer.getInventoryItem(v)
if items.count > 0 then
cb(v)
return
end
end
cb(nil)
end)
ESX.RegisterServerCallback('crew-phone:item-check', function(source, cb, data)
local xPlayer = ESX.GetPlayerFromId(source)
if not xPlayer then return; end
local items = xPlayer.getInventoryItem(data)
cb(items.count)
end)
This error tells you that items is a nil value and Lua complains about it because you try to index it as in items.count. That doesn't make sense if items is nil
It's like referring to a book page of a non-existant book.
local items is nil because xPlayer.getInventoryItem(data) returned nil
Check wether the local script provides a string for data when triggering the server event and if xPlayer actually has an item like that.
Also check your RegisterServerCallback. The function you define there is the callback. Why is there another callback in that function argument? I think you're confusing things and probably should refer to the manual again.
https://esx-framework.github.io/es_extended/server/functions/registerservercallback/
so when i try to buy something in shop it's just drop me this error.How to fix this?
Code:
RegisterServerEvent('esx_shops:buyItem')
AddEventHandler('esx_shops:buyItem', function(itemName, amount, zone)
local _source = source
local xPlayer = ESX.GetPlayerFromId(_source)
local sourceItem = xPlayer.getInventoryItem(itemName)
amount = ESX.Round(amount)
-- is the player trying to exploit?
if amount < 0 then
print('esx_shops: ' .. xPlayer.identifier .. ' attempted to exploit the shop!')
return
end
Error:
SCRIPT ERROR: #esx_supermarket/server/main.lua:68: attempt to index a nil value (local 'xPlayer')
xPlayer is a nil value. nil values may not be indexed. Doing so causes an error.
So anything like xPlayer[something], xPlayer.something or xPlayer:something() is not allowed.
In your first example
local xPlayer = ESX.GetPlayerFromId(_source)
local sourceItem = xPlayer.getInventoryItem(itemName)
xPlayer is nil because ESX.GetPlayerFromId(_source) did not return a player. Most likely because _source is nil. At least there is nothing in your code that would indicate that source is not nil.
Befor you try to index possible nil values, check wether they are nil.
Please read the Lua manual and do a beginners tutorial.
This is for a phone script ive been working on and im trying to update some code but I have been getting a single error.
Error #phone/server.lua:37: attempt to index a nil value (local 'user')
ref (#phone/server.lua:37)
handler (#framework/server/main.lua:242)
getNumberPhone (#phone/server.lua:36)
handler (#phone/server.lua:268)
I tried the one way I was shown here before with no luck.
line 37
function getNumberPhone(source, n)
local n = 0
TriggerEvent('f:getPlayer', source, function(user)
n = user.getPhoneNumber()
end)
return n
end
line 242
AddEventHandler("f:getPlayer", function(user, cb)
if not cb then return end
if(Users)then
if(Users[user])then
cb(Users[user])
else
cb(nil)
end
else
cb(nil)
end
end)
line 36
function getNumberPhone(source, n)
local n = 0
TriggerEvent('f:getPlayer', source, function(user)
n = user.getPhoneNumber()
end)
return n
end
line 286
RegisterServerEvent('gcPhone:allUpdate')
AddEventHandler('gcPhone:allUpdate', function()
local source = source
local identifier = GetPlayerIdentifiers(source)[1]
TriggerClientEvent("gcPhone:myPhoneNumber", source, getNumberPhone(source))
TriggerClientEvent("gcPhone:allMessage", source, getMessages(identifier,source))
TriggerClientEvent("gcPhone:contactList", source, getContacts(identifier))
end)
Explaining the Error
In Lua, this is one of the most common errors you will run into, so it is very important for you to know how to solve it.
The error: attempt to index a nil value
To understand what this error means, you only need to understand these concepts.
In Lua, only tables can be indexed (i.e. myTable[myIndex])
In Lua, if a variable evaluates to nil, then attempting to index it as if it were a table throws an error
So it should be a little easier to understand the error you received. A more explicit way to describe this error would be something like "the Lua interpreter attempted to index your variable user on line 37 but user evaluated to nil."
Your Specific Case
On line 242 you are calling a callback and passing nil
cb(nil)
This callback sends this nil value to line 37 as the user parameter
TriggerEvent('f:getPlayer', source, function(user)
n = user.getPhoneNumber()
end)
So when you try to run user.getPhoneNumber() you are actually running nil.getPhoneNumber(), which throws the error you saw.
Ways to fix this type of error
1) Whenever you are working with a variable that could be nil, create an if statement checking to see if it is nil before proceeding.
2) Make sure you never set that variable to nil.
Ways to fix your specific error
1) On line 36, create this if statement
TriggerEvent('f:getPlayer', source, function(user)
if user ~= nil then
n = user.getPhoneNumber()
end
end)
Or do a similar nil check like this
TriggerEvent('f:getPlayer', source, function(user)
if user then
n = user.getPhoneNumber()
end
end)
2) Always pass a user in your callback. For example, on line 242 and elsewhere, pass an actual user object.
cb(Users[someUser])