Animation is lost after change to Legacy

If you created an animation and Unity added an 'Animator Controller' by itself. Then you don't need to add another Animationcomponent. And change your script to this : (Not tested, but should work)

 public Animator myAnimation;
  
  
      void Start () {
          myAnimation = GetComponent<Animator>();
      }
      
  
      void Update () {
          myAnimation.Play();
 //similarly
          myAnimation.Stop();
      }

Thank you very much! Have done exactly what you wrote, but still have a problem.

Create Sphere, make animation, Animator component created by Unity.

Add script.

 using UnityEngine;
 using System.Collections;
 
 public class sphereScript : MonoBehaviour {
 
     public Animator anim;
 
     void Start() {
         anim = GetComponent<Animator>();
         anim.Stop();
     }
     
 
     void Update () {
         if (Input.GetMouseButton(0)){
             print("sphere: I press mouse button");
             anim.Play("sphereAnimation");
 
         }
 
     }
 }
 

It Stop playing animation, but doesn't start it by clicking mouse button...