ERROR - An object reference is required to access non-static member

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#1 
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using System;

public class Rocket : MonoBehaviour {

    Rigidbody rb;

	// Use this for initialization
	void Start () {
        rb = GetComponent<Rigidbody>();
	}
	
	// Update is called once per frame
	void Update ()
    {
        ProcessInput();
    }

    private static void ProcessInput()
    {
        if(Input.GetKey(KeyCode.Space))
        {
            rb.AddRelativeForce(Vector3.up);
        }
        if(Input.GetKey(KeyCode.LeftArrow))
        {
            print("Left Rotate");
        }
        else if(Input.GetKey(KeyCode.RightArrow))
        {
            print("Right Rotate");
        }
    }


}

Im getting ,An object reference is required to access non-static member, as an error. I refered rb to Rigidbody but the program does not notice it.

#2

Hi Roman,

The problem is that your method definition for ProcessInput is static, remove the static keyword and this issue should be resolved.

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