Character Clothes not Animating with Character Model

Question

I'm very new to Unity. I'm messing around just trying to get my bearings but I'm having trouble getting a character model to animate with the clothes correctly.

This is the asset that I'm using: https://shawarma.assetstore.unity3d.com/en/#!/content/89723

I've created a ThirdPersonController and dropped my model into that. When I hit play, the base character moves and is animated, but the clothes stay in the default position.

The ReadMe says:

Attaching clothing(Classes): Add the "AttachToBody" script to the clothing, the cloths must be inside the character to work.

I believe I have done this but I could be wrong. I have an error in Unity which says

Wrong parent body

Which I can see in the code for the AttachToBody.cs

     if (bodyBones == null) 
     {
         Debug.LogError ("Wrong parent body.");
         return;
     }

Could somebody help me out and tell me where I'm going wrong please?

I've attached a screenshot for reference.

screenshot

Answer 1

For those interested in the steps I took to fix this, here is what I did based on DMGregory's answer to the same question on Stack Exchange here.

To start with, I created an entirely new character from the same asset.

The hierarchy is:

 ThirdPersonController
 |--  PlayerModel
 |----    CharArmature
 |------      CharBaseM
 |----    WarriorMale
 |------       CharArmature
 |--------       etc...
 |------      TSM_NonSym
 |------      TSM_Sym
 |----    Camera

I created a new script to use instead of the included AttachToBody.cs script, as DMGregory suggested and attached this to ThirdPersonController.PlayerModel.WarriorMale on the WarriorMale object. The new script is below.

 using System.Collections;
 using System.Collections.Generic;
 using UnityEngine;
 
 /**
  * This matches the cloth movement to a character, the clothing must be inside the character.
  **/
 public class AttachToMesh : MonoBehaviour
 {
 
     void Start()
     {
         int i = 0;
         Transform rootParent = transform.root.transform;
         GameObject target;
         Transform[] bodyBones = null;
         var skinnedMesh = transform.parent.GetComponentInChildren<SkinnedMeshRenderer>();
         if (skinnedMesh != null)
         {
             bodyBones = skinnedMesh.bones;
         }
 
         if (bodyBones == null)
         {
             Debug.LogError("Wrong parent body.");
             return;
         }
 
         GameObject Attachment;
 
         for (i = 0; i < transform.GetChildCount(); i++)
         {
             Attachment = transform.GetChild(i).gameObject;
             if (Attachment.GetComponent<SkinnedMeshRenderer>() != null)
             {
                 Attachment.GetComponent<SkinnedMeshRenderer>().bones = bodyBones;
             }
 
         }
     }
 }

Which caused the clothes to animate with the player model. I double checked the original script in this position (and descendants) in the hierarchy and was still unable to get it to animate, but when I used the new AttachToMesh.cs script, it worked perfectly, as can be seen in the screenshot below of the idle animation of my player model, rather than the default T-Shape pose.

Animated character

Character Clothes not Animating with Character Model

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