animation doesnt change sprite

i’m trying to make an animation with sprites… for now i just want it to change sprites, but i don’t know why its not changing the sprites… this is how i got the editor:
animation

i did all the steps for making an animation, i added an animation component in the gameobject and then i started making the animation, dont know why it doesnt change

I dont see the Animator Component on your GameObject.
You should use an Animator Controller and the Animator Component to animate the sprite

Or you can use this script from Alec Holowka SpriteAnimator.cs - Pastebin.com