do you know what is going wrong?

Questions & Answers
1

using UnityEngine;
using System.Collections;

public class Kugel : MonoBehaviour {

	// Use this for initialization
	void Start () {
	
	}
	
	// Update is called once per frame
	void Update () {
	
	if(Input.GetKey(KeyCode.A))
	rigidbody.AddTorque(0,0,50*Time.deltaTime)
	if(Input.GetKey(KeyCode.D))
	rigidbody.AddTorque(0,0,-50*Time.deltaTime)
	if(Input.GetKey(KeyCode.W))
	rigidbody.AddTorque(50,0,0*Time.deltaTime)
	if(Input.GetKey(KeyCode.S))
	rigidbody.AddTorque(-50,0,0*Time.deltaTime)
	if(Input.GetKey(KeyCode.Space))
	rigidbody.AddForce(0,0,-50)
	}
}

“is = Unexpected symbol”

2

missing " ; " character at end of line with each rigidbody one.
e.g.:

using UnityEngine;
using System.Collections;

public class Kugel : MonoBehaviour {

	void Update () {
		
		if (Input.GetKey (KeyCode.A)) {
			GetComponent<Rigidbody> ().AddTorque (0, 0, 50 * Time.deltaTime);
		}
		if (Input.GetKey (KeyCode.D)) {
			GetComponent<Rigidbody> ().AddTorque (0, 0, -50 * Time.deltaTime);
		}
		if (Input.GetKey (KeyCode.W)){
			GetComponent<Rigidbody> ().AddTorque (50, 0, 0 * Time.deltaTime);
		}
		if (Input.GetKey (KeyCode.S)){
			GetComponent<Rigidbody> ().AddTorque (-50, 0, 0 * Time.deltaTime);
		}
		if (Input.GetKey (KeyCode.Space)) {
			GetComponent<Rigidbody> ().AddForce (0, 0, -50);
		}
	}
}