So i know this error but i do not know why is showing it?
So What i am trying to do is save a int value (yes i tried number values it does not work ) So heres the part of the script that gives the error:
--The script is in server script
TUV.Value = sessionData[player.UserId].TUV
heres the parent of that part:
local Players = game:GetService("Players")
local RS = game:GetService("GeometryService")
local DSS = game:GetService("DataStoreService")
local database = DSS:GetDataStore("data")
local sessionData = {}
function PlayerAdded(player)
local leaderstats = Instance.new("Folder")
leaderstats.Name = "leaderstats"
local Money = Instance.new("IntValue")
Money.Name = "Money"
Money.Parent = leaderstats
local TUV = game.Workspace:WaitForChild("Upgrades"):WaitForChild("TestUpgradeValue")
local success = nil
local playerData = nil
local attempt = 1
repeat
success, playerData = pcall(function()
return database:GetAsync(player.UserId)
end)
attempt += 1
if not success then
warn(playerData)
task.wait(3)
end
until success or attempt == 5
if success then
print("Connected to database")
if not playerData then
print("Assigning default data")
playerData = {
["Money"] = 0 ,
["TUV"] = 0
}
end
sessionData[player.UserId] = playerData
else
warn("Unable to get data for ", player.UserId)
player:Kick("Unable to load your data. Try again later")
end
Money.Value = sessionData[player.UserId].Money
TUV.Value = sessionData[player.UserId].TUV
Money.Changed:Connect(function()
sessionData[player.UserId].Money = Money.Value
end)
TUV.Changed:Connect(function()
sessionData[player.UserId].TUV = TUV.Value
end)
leaderstats.Parent = player
end
Players.PlayerAdded:Connect(PlayerAdded)
Is there anyway to fix this? And if you know the reason can you tell me the problem just in case if this happens in the future
By any chance did you run the game before adding ‘TUV’ to your datastore? If so, when it saved there would not be a TUV value in the save data, so every time you enter the game it loads your savedata as:
playerData = {
["Money"] = 0
}
Then when it tries to set the TUV.Value later, it’s attempting to set it to nil.
You can double check by printing ‘playerData’ after it loads and ensuring it’s correct.
Unfortunately I made a mistake, they are setting its value outside of the if statement so it should also be set if playerData exists, the code’s formatting confused me
if success then
print("Connected to database")
if not playerData then
print("Assigning default data")
playerData = {
["Money"] = 0 ,
["TUV"] = 0
}
end
sessionData[player.UserId] = playerData
else
warn("Unable to get data for ", player.UserId)
player:Kick("Unable to load your data. Try again later")
end
One of the references to ‘TUV’ is nil, it doesn’t exist. It’s either to the left or to the right. Check the Instance scoped left-side TUV and it’s Value. Then check the right-side; firstly the sessionData indexed by player.UserId and then the reference to that data named TUV.
Just to add on to what myself and @dduck5tar suggested, and if it’s the datastore not containing the TUV value. Something like this:
local defaultPlayerData = {
['Money'] = 0;
['TUV'] = 0;
}
local PlayerAdded(player)
-- Make leaderstats
local success = nil
local playerData = nil
local attempt = 1
repeat
success, playerData = pcall(function()
return database:GetAsync(player.UserId)
end)
attempt += 1
if not success then
warn(playerData)
task.wait(3)
end
until success or attempt == 5
if success then
if not playerData then
playerData = defaultPlayerData
else
for Index,Value in pairs(defaultPlayerData) do
if not playerData[Index] then
playerData[Index] = Value
end
end
end
sessionData[player.UserId] = playerData
print("Connected to database")
else
warn("Unable to get data for ", player.UserId)
player:Kick("Unable to load your data. Try again later")
return;
end
-- Set all the values
-- Bind all the .Changed events
end
…Should allow you the same functionality, while also future-proofing so that if you ever add extra variables to the default save data, players who had played prior to that change will automatically get updated to the newest format when they join.
local DSS = game:GetService("DataStoreService")
local Players = game:GetService("Players")
local RS = game:GetService("GeometryService")
local Workspace = game:GetService("Workspace")
local database = DSS:GetDataStore("data")
local TUV = Workspace:WaitForChild("Upgrades"):WaitForChild("TestUpgradeValue")
local sessionData = {}
local function GetPlayerData(player)
local attempt = 1
while attempt < 5 do
local success, playerData = pcall(database.GetAsync, database, player.UserId)
if success then
return playerData
else
attempt += 1
task.wait(3)
end
end
warn(`Failed to get PlayerData for Player {player.UserId} ({player.DisplayName})`)
end
local function PlayerAdded(player)
local playerData = GetPlayerData(player)
if playerData == nil then
warn(`PlayerData for Player {player.UserId} ({player.DisplayName}) is nil, continuing using default values`)
playerData = {
Money = 0,
TUV = 0
}
end
sessionData[player.UserId] = playerData
local leaderstats = Instance.new("Folder")
leaderstats.Name = "leaderstats"
leaderstats.Parent = player
local Money = Instance.new("IntValue")
Money.Name = "Money"
Money.Value = playerData.Money
Money.Parent = leaderstats
TUV.Value = playerData.TUV
Money.Changed:Connect(function(value)
sessionData[player.UserId].Money = value
end)
TUV.Changed:Connect(function(value)
sessionData[player.UserId].TUV = value
end)
end
Players.PlayerAdded:Connect(PlayerAdded)
I’ve kept the same naming scheme, and it should work like the original, but hopefully without any issues
If it doesn’t work, then @dduck5tar and @darkelementallord are correct in suggesting that the issue lies in how the player data is being saved
