Replace MeshFilter mesh by a other mesh in Editor

Hi,

I've created a script to replace (in Editor) all the MeshFilter's mesh in my scene by the mesh "meshToAssign" but i'm having trouble to get my mesh list.

Here is my code :

 using System.Collections;
 using System.Collections.Generic;
 using UnityEngine;
 
 public class ReplaceMesh : MonoBehaviour
 {
     public Mesh meshToReplace;
     public Mesh meshToAssign;
 
     public List<MeshFilter> meshFilterToWorkOn;
 
     [ContextMenu("FindMeshRendererToWorkOn")]
     public void FindMeshRendererToWorkOn()
     {
         meshFilterToWorkOn.Clear();
 
         MeshFilter[] meshFilterAll = FindObjectsOfType<MeshFilter>();
         int meshFilterAllLength = meshFilterAll.Length;
         for (int i = 0; i < meshFilterAllLength; i++)
         {
             if (meshFilterAll[i].sharedMesh == meshToReplace)
                 meshFilterToWorkOn.Add(meshFilterAll[i]);
         }
     }
 
     [ContextMenu("ReplaceAllMeshInList")]
     public void ReplaceAllMeshInList()
     {
         int meshFilterToWorkOnCount = meshFilterToWorkOn.Count;
         for (int i = 0; i < meshFilterToWorkOnCount; i++)
             meshFilterToWorkOn[i].mesh = meshToAssign;
     }
 }

It seems like the variable "meshToReplace" isn't equal to "meshFilterAll[i].sharedMesh" but when i tryed with "meshFilterAll[i].mesh" a error has appear in the console when i execute the command.

Can you guys help me ?