Need Help on what ios wrong with my Csharp Code

Assets/Tiled2Unity/Scripts/Editor/ImportTiled2Unity.Prefab.cs(97,27): warning CS0618: `UnityEditor.PrefabUtility.ReplacePrefab(UnityEngine.GameObject, UnityEngine.Object, UnityEditor.ReplacePrefabOptions)' is obsolete: `Use SaveAsPrefabAsset or SaveAsPrefabAssetAndConnect with a path instead.'



using System.Collections;
using System.Collections.Generic;
using UnityEngine;
public class PlayerMovement : MonoBehaviour
{
Rigidbody2D rbody;
Animator Anim;
// Start is called before the first frame update
void Start()
{
rbody = GetComponent<Rigidbody2D> ();
Anim = GetComponent<Animator> ();
}
// Update is called once per frame
void Update() {
Vector2 movement_vector2 = new Vector2(Input.GetAxisRaw("Horizontal"), Input.GetAxisRaw("Vertical"));
if (movement_vector2 != Vector2.zero)
{
Anim.SetBool("iswalking", true);
Anim.SetFloat("input_X", movement_vector2.x);
Anim.SetFloat("input_Y", movement_vector2.y);
} else {
Anim.SetBool ("iswalking", false);
}
rbody.MovePosition(rbody.position + movement_vector2 * Time.deltaTime);
}
}