Newbie at coding. get error ! help

i get following error : NullReferenceException: Object reference not set to an instance of an object
playercontroller.Update () (at Assets/playercontroller.cs:21)

if (Physics.Raycast(Camera.main.ScreenPointToRay(Input.mousePosition), out hit, 100))


What did i do wrong? I personally think is something with the camera? but not sure.


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


public class playercontroller : MonoBehaviour {

NavMeshAgent Agent;

private void Start()
{
Agent = GetComponent<NavMeshAgent>();
}
private void Update()
{
if (Input.GetMouseButtonDown(0))
{

RaycastHit hit;
if (Physics.Raycast(Camera.main.ScreenPointToRay(Input.mousePosition), out hit, 100))
Agent.destination = hit.point;
}
}

 

Most likely NavMeshAgent is not attached to the same object this script is attached to,

GetComponent<NavMeshAgent>()

looks for the NavMeshAgent only on the same object like script is.

 

i have put on a photo, to me it seems like is the same object it´s on.

could have done anything wrong with the Ground since i just took one from asset?

 

If you have an error in this string:
"if (Physics.Raycast(Camera.main.ScreenPointToRay(Input.mousePosition), out hit, 100))"
check your Main Camera object. It must has "MainCamera" tag.

 

Is the tag "Main Camera" ??? or where do i see it ?

I tried to rename the file "MainCamera" Aswell, didn´t work.

 

Click on the object with contains the camera, and at the top of the inspector look at what tag is set. Also, your code is difficult to read because you're not using CODE tags when posting to the forum, and linking image thumbnails like you're doing is basically useless.

 

Wow.. something so simple.. well thanks alot brow that totally sloved the problem! i will use the code thing next time aswell ! ty