local player = game.Players.LocalPlayer
repeat wait() until player.Character.Humanoid
local humanoid = player.Character.Humanoid
local mouse = player:GetMouse()
local anim = Instance.new("Animation")
anim.AnimationId = "http://www.roblox.com/asset/?id=5191066147"
mouse.KeyDown:connect(function(key)
if key == "x" then
local playAnim = humanoid:LoadAnimation(anim)
playAnim:Play()
end
end)
✓ ANSWER ACCEPTED
My Animation Will Not Play When I Press "X" , What is Wrong Here?
1 answer
✓ Accepted answer
Two things;
Your animation doesn't have a parent, essentially rendering it nil (you should also use "rbxassetid://YourID" for the AnimationId.
anim.Parent = script
Use UserInputService.InputBegan instead of mouse.KeyDown
local UIS = game:GetService("UserInputService")
UIS.InputBegan:Connect(function(input,event)
if input.KeyCode == Enum.KeyCode.X and not event then
-- do stuff
end
end)
This discussion is preserved as it was. New answers, comments, and votes are closed.

2 comments
The code on line 2 is faulty
The players character could by chance not exist, or the Humanoid might not exist, resulting in a Runtime error.