Changing ROBLOX Default character Animations?

Changing the default animations doesn't work for me either, but I will try to solve your problem:

In solo mode (studio) your player spawns before scripts do, so they will not see that a player is added. A way of fixing this would be:

function onPlayerAdded (player)
    -- Lots of ur code
end
local Players = game:GetService("Players")

--When a player joins, call the onPlayerAdded function
Players.PlayerAdded:connect(onPlayerAdded)

--Call onPlayerAdded for each player already in the game
for _,player in pairs(Players:GetPlayers()) do
     onPlayerAdded(player)
end

game.Players.PlayerAdded:connect(function(player)
    while not player.Character do wait()end
    local character=player.Character
    local animateScript=character.Animate
    animateScript.idle.Animation1.AnimationId="http://www.roblox.com/asset/?id=274137587" --Change ID
end)

--Don't forget to change idle and animation1 to correct paths

Add in normal script in serverscriptstorage. Read instructions.

The answer is quite easy!

-- Even if this Question was made 2 years ago, i will still answer it! --

The method to change player's animation is...

Removing The Player's Animate Script

--- To do that, you have to remove their animate script once each player joins. ---- Note : Use a Normal Script for that.

Creating And Replacing Another Animate Script

--- To do this, you have to Copy the Animate Script inside the actual Player's Character, which means once you are in test mode, find the script named "Animate", and Copy it!

------ Note : Only LOCAL script for this; most be placed inside the Script you have created, to find the Local Script, and replace it with YOUR script.

Hope it helps!

Just gave a METHOD, no scripts ;)

I know I'm three years late but it's just in case someone stumbles upon this article. This is the FASTEST AND EASIEST way of doing this.

1. Copy and paste the default "Animate" script in "StarterCharacterScripts"
2. Edit it as you please
3. Done

If you need any help or have any questions please contact me. ;)