✓ ANSWER ACCEPTED

Attempt to Index field 'Character' a nil value?

Asked Jan 23, 2020341 views3 answers

I dont see what im doing wrong here. Can anyone help?

local runanim = game.Players.LocalPlayer.Character:WaitForChild("Humanoid"):LoadAnimation(script.Running)

uis.InputBegan:Connect(function(key)
	if key.KeyCode == Enum.KeyCode.LeftShift then
		plr.Character.Humanoid.WalkSpeed = 20
		runanim.Looped = true
		runanim:Play()
	end
end)

uis.InputEnded:Connect(function(key)
	if key.KeyCode == Enum.KeyCode.LeftShift then
		plr.Character.Humanoid.WalkSpeed = 16
		runanim.Looped = false
		runanim:Stop()
	end
end)

AnonymousJan 23, 2020

3 answers

✓ Accepted answer

The problem here is that the character hasn't loaded yet. When you get the character, check if the character exists, and if it doesn't you need to wait for CharacterAdded.

local player = game.Players.LocalPlayer
local char = player.Char or player.CharacterAdded:Wait()
local runanim = char:WaitForChild("Humanoid"):LoadAnimation(script.Running)

uis.InputBegan:Connect(function(key)
    if key.KeyCode == Enum.KeyCode.LeftShift then
        char.Humanoid.WalkSpeed = 20
        runanim.Looped = true
        runanim:Play()
    end
end)

uis.InputEnded:Connect(function(key)
    if key.KeyCode == Enum.KeyCode.LeftShift then
        char.Humanoid.WalkSpeed = 16
        runanim.Looped = false
        runanim:Stop()
    end
end)

Not related to your question, but you should also make sure that when the shift key is held to make a capital letter in the chat, it doesn't trigger the running animation.

local player = game.Players.LocalPlayer
local char = player.Char or player.CharacterAdded:Wait()
local runanim = char:WaitForChild("Humanoid"):LoadAnimation(script.Running)

uis.InputBegan:Connect(function(key, gp)
    if key.KeyCode == Enum.KeyCode.LeftShift and not gp then
        char.Humanoid.WalkSpeed = 20
        runanim.Looped = true
        runanim:Play()
    end
end)

uis.InputEnded:Connect(function(key)
    if key.KeyCode == Enum.KeyCode.LeftShift then
        char.Humanoid.WalkSpeed = 16
        runanim.Looped = false
        runanim:Stop()
    end
end)

AnonymousJan 24, 2020Permalink

From what i'm seeing here you don't have a player variable to call "plr", and that's why it returns the index as nil. If you put the script inside of the StarterCharacterScripts folder, ( which is inside of StarterPlayer ), you can get the Character only by using script.Parent, since the script will be parented to it as soon as the character is loaded, which is what i did here on this script. I renamed and separated some variables just to make it easier to understand. Hope this helps!

UIS = game:GetService("UserInputService") 
local Character = script.Parent
local Humanoid = Character.Humanoid
local Anim = script:WaitForChild("Running") 
local Track  = Humanoid:LoadAnimation(Anim)

UIS.InputBegan:Connect(function(key)
    if key.KeyCode == Enum.KeyCode.LeftShift then
print("pressed!")
        Humanoid.WalkSpeed = 20
        Track.Looped = true
        Track:Play()
    end
end)

UIS.InputEnded:Connect(function(key)
    if key.KeyCode == Enum.KeyCode.LeftShift then
print("unpressed!")
        Humanoid.WalkSpeed = 16
        Track.Looped = false
        Track:Stop()
    end
end)

AnonymousJan 23, 2020Edited Jan 23, 2020Permalink

so basically you dont have a plr variable which you can get character from. or thats not your entire script.

im guessing your using a local script so this is what you would have to do to get the plr:

local runanim = game.Players.LocalPlayer.Character:WaitForChild("Humanoid"):LoadAnimation(script.Running)
local plr = game.Players.LocalPlayer
	 
	uis.InputBegan:Connect(function(key)
	    if key.KeyCode == Enum.KeyCode.LeftShift then
	        plr.Character.Humanoid.WalkSpeed = 20
	        runanim.Looped = true
	        runanim:Play()
	    end
	end)
	 
	uis.InputEnded:Connect(function(key)
	    if key.KeyCode == Enum.KeyCode.LeftShift then
	        plr.Character.Humanoid.WalkSpeed = 16
	        runanim.Looped = false
	        runanim:Stop()
	    end
	end)

and that would get the plr for you and the Character.

AnonymousJan 23, 2020Permalink

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