SendMessage has no Receiver

I'm following the BurgzergArcade tutorial series, and I encounter this problem at tutorial 265.

I am just starting out learning code. I have an AI script on my Goblin enemy characters, and in that script there is this bit:

 private void MeleeAttack(){
         Debug.Log( "***Melee Attack***");
         
         //set attackresettimer to the meleeAttackTimer
         _me.meleeResetTimer = _me.meleeAttackTimer;
         
         //deal with animations
         SendMessage(" PlayMeleeAttack");
         
         //decide if we hit or not first
         if(true){
             //do something
             Debug.Log("We Hit!");
         }
             
 
             else{
                 //do something
                         Debug.Log("We Miss!");
             
         }

When I go up to the goblin, instead of playing the animation (it has one so thats not it), I receive the error

SendMessage PlayMeleeAttack has no receiver! UnityEngine.Component:SendMessage(String)

To sum up:

• enemy has animations and AI script

• When enemy is supposed to play attack animation I receive the error

I hope this is enough information, and thanks in advance!