Cloning an Object and back

Questions & Answers
1

The idea is just to clone an object and back
But some how it gives me an error

using UnityEngine;
using System.Collections;
using System.Collections.Generic;

public class Donate : MonoBehaviour 
{
	//this is used to prevent more than 1 activation. see below for clarification
	public bool done;
	//the gameobject that will receive the script
	public GameObject victim;
	//the actual script (any component can be sent!) that will be sent to the other object
	public Movement move;
	public Donate donateScript;
	
	Component CopyComponent(Component original, GameObject destination)
	{
		System.Type type = original.GetType();
		Component copy = destination.AddComponent(type);
		// Copied fields can be restricted with BindingFlags
		System.Reflection.FieldInfo[] fields = type.GetFields(); 
		foreach (System.Reflection.FieldInfo field in fields)
		{
			field.SetValue(copy, field.GetValue(original));
		}
		return copy;
	}
	
	void Start () 
	{
		//at first, you let the user press 'E' once
		done = false;
	}
	
	void Update () 
	{
		
		if(false == done && Input.GetKey(KeyCode.E))
		{
			//After 'E' is pressed, deactivate this
			done = true;
			//Search for a gameobject to receive the script
			victim = GameObject.FindGameObjectWithTag("Possessed");
			move = GetComponent<Movement>();
			donateScript = GetComponent<Donate>();
			
			CopyComponent(move, victim);
			CopyComponent(donateScript, victim);
			
			Destroy(move);
			Destroy(donateScript);
			
		}
	}
}

Error is:

NullReferenceException: Object reference not set to an instance of an object
Donate.CopyComponent (UnityEngine.Component original, UnityEngine.GameObject destination) (at Assets/Scripts/Donate.cs:18)
Donate.Update () (at Assets/Scripts/Donate.cs:46)

It was working fine but now this pops up and I have no idea how to fix this

2

Before copying component check if the target game object and component to copy actually exists since it looks like there is no game object with tag “Possessed” or there is no Movement component.

Just check if like:

if(victim != null && move != null)
{
    CopyComponent(move, victim);
}

You should also do the same for Donate component.

For now you can check using Debug.Log which of these is null before calling the CopyComponent method from Update.