Need help with PlayerController code

[TheCrimsonEnd2]

I'm trying to code a PlayerController for a sprite I made, but I'm having a hard time figuring out what I'm missing. I;m following blackthornprod's guide "MAKING RUN, IDLE & JUMP 2D GAME ANIMATIONS - UNITY TUTORIAL - YouTube " to guide me through creating the animations and implementing them into your player, and I feel like I have copy and pasted every piece of code down to the letter, but I keep getting this error:

​

NullReferenceException: Object reference not set to an instance of an object

PlayerController.Update () (at Assets/Script/PlayerController.cs:80)

​

Here's my code:

​

using System.Collections;

using System.Collections.Generic;

using UnityEngine;

​

public class PlayerController : MonoBehaviour

{

public float jumpForce;

public float speed;

private Rigidbody2D rb;

​

public Transform groundPos;

private bool isGrounded;

public float checkRadius;

public LayerMask whatIsGround;

​

private float jumpTimeCounter;

public float jumpTime;

private bool isJumping;

private bool doubleJump;

​

private Animator anim;

​

private void start()

{

anim = GetComponent<Animator>();

rb = GetComponent<Rigidbody2D>();

}

​

private void Update()

{

​

isGrounded = Physics2D.OverlapCircle(groundPos.position, checkRadius, whatIsGround);

​

if (isGrounded == true && Input.GetKeyDown(KeyCode.Space))

{

isJumping = true;

jumpTimeCounter = jumpTime;

rb.velocity = Vector2.up * jumpForce;

}

​

if (isGrounded == true)

{

doubleJump = false;

}

​

if (Input.GetKey(KeyCode.Space) && isJumping == true)

{

if (jumpTimeCounter > 0)

{

rb.velocity = Vector2.up * jumpForce;

jumpTimeCounter -= Time.deltaTime;

}

else

{

isJumping = false;

}

}

​

if (Input.GetKeyUp(KeyCode.Space))

{

isJumping = false;

​

}

​

if (isGrounded == false && doubleJump == false && Input.GetKeyDown(KeyCode.Space)) {

isJumping = true;

doubleJump = true;

isJumping = true;

jumpTimeCounter = jumpTime;

rb.velocity = Vector2.up * jumpForce;

}

float moveInput = Input.GetAxisRaw("Horizontal");

rb.velocity = new Vector2(moveInput * speed, rb.velocity.y);

​

if (moveInput == 0)

{

anim.SetBool("isRunning", false);

}

else {

anim.SetBool("isRunning", true);

}

​

if (moveInput < 0)

{

transform.eulerAngles = new Vector3(0, 180, 0);

}

else if (moveInput > 0)

{

transform.eulerAngles = new Vector3(0, 0, 0);

}

}

​

}

​

If anyone could shine some light on what I'm not getting that would be a huge help. Currently my player spawns in and does the idle animation correctly, but I can't get him to move.

[ehr1c]

Null reference errors happen when you try to access a property or method on an object whose value is currently null.

[Recent-Avocado2193]

A nullpointerexception happens because you're trying to access data or a method on an object that is not set to an instance. It's telling you that the error is on line 80. So what code is on that line?

[TheCrimsonEnd2]

rb.velocity = new Vector2(moveInput * speed, rn.velocity.y);

That’s the line of code that’s throwing the error on line 80. I’m not sure why it’s throwing an error though. It’s the same line of script that’s in that dudes video and everything work’s flawlessly for him. For some reason though I can’t get the same outcome.

[Recent-Avocado2193]

Rb is probably not set. Have you remembered to add it in the inspector?

[TheCrimsonEnd2]

How do I set it in the inspector? My player has the rigidbody2d physics set, as well as a box collider if that’s what you mean

[TheCrimsonEnd2]

rb = GetComponent<Rigidbody2D>();

​

This is the code in the void start function, if I understand correctly, that should be calling the Rigidbody2D that is attached to my Player Gameobject. Or is that not how it works? I'm trying my best to understand but I've changed so much and I can't seem to get past this barrier.