Need help please!

Hi!
Im setting up a multiplayer game with photon and when i fixed everything i get these errors:


please help me fix them! heres the code:

using UnityEngine;
using System.Collections;

public class NetworkManager : Photon.MonoBehaviour {
	
	static public string userName;
	static public bool connecting = false;
	static public bool connected = false;
	
	// Use this for initialization
	void Start () {
		connecting = false;
		connected = false;
		userName = PlayerPrefs.GetString("userName", "RedShirt");
	}

	void OnDestroy() {
		PlayerPrefs.SetString("userName", userName);
	}
	
	void OnGUI() {
		if(!connecting) {
			GUILayout.BeginArea( new Rect(Screen.width/2 - 100, 0, 200, Screen.height) );
			GUILayout.BeginVertical();
			GUILayout.FlexibleSpace();
			
			GUILayout.Label("Your Name: ");
			userName = GUILayout.TextField(userName, 24);
			
			GUILayout.Space(20);
			if(userName.Length > 0  GUILayout.Button("Multi-Player")) {
				connecting = true;
				PhotonNetwork.ConnectUsingSettings("alpha 0.1");
			}
			
			GUILayout.Space(20);
			if(userName.Length > 0  GUILayout.Button("Single-Player")) {
				connecting = true;
				PhotonNetwork.offlineMode = true; 
				PhotonNetwork.CreateRoom(null);

			}
			
			GUILayout.FlexibleSpace();
			GUILayout.EndVertical();
			GUILayout.EndArea();
		}
		else if(!connected) {
			GUILayout.Label (PhotonNetwork.connectionStateDetailed.ToString());
		}
	}

	void OnJoinedLobby() {
		PhotonNetwork.JoinRandomRoom();
	}
	
	void OnPhotonRandomJoinFailed() {
		PhotonNetwork.CreateRoom(null);
	}
	
	void OnJoinedRoom() {
		connected = true;
		SpawnPlayer();
		SpawnEnemy();
	}
	
	void SpawnPlayer() {
		GameObject myShip = PhotonNetwork.Instantiate( "Ship1", Random.onUnitSphere * 2f, Quaternion.identity, 0 );
		myShip.GetComponent<Targetable>().enabled=false;	// We can't target ourselves.
		Camera.main.GetComponent<CameraScript>().target = myShip.transform;
		GameObject.Find("GUI").GetComponent<NavConsole>().shipMovement = myShip.GetComponent<ShipMovement>();
		GameObject.Find("GUI").GetComponent<TacConsole>().SetupWeaponMounts(myShip.transform);
	}
	
	void SpawnEnemy() {
		PhotonNetwork.Instantiate( "Enemy1", Vector3.forward * 10f, Quaternion.identity, 0 );
	}
}

Where are the Targetable/CameraScript/NavConsole/ShipMovement/TacConsole classes located? Those errors just mean that Unity can’t find those classes in the global namespace or any namespace you’ve included in your using directives. Do you have them in another namespace?