Multiplayer Tutorial errors

Unity Engine
1 
using UnityEngine;
using System.Collections;
using System;

public class Connection: MonoBehaviour 
{
	public string connectToIp = "127.0.0.1";
	public int connectPort = 25000;
	public bool useNAT = false;
	public string ipaddress = "";
	public string port = "";
	
	string playerName = "<NAME ME>";

void OnGUI ()
   {
	    if (Network.peerType == NetworkPeerType.Disconnected)
	    {
		    if (GUILayout.Button("Connect"))
		    {
				if (playerName != "<NAME ME>")
			    {
					Network.useNat = useNAT;
					Network.Connect(connectToIp, connectPort);
					PlayerPrefs.SetString("playerName", playerName);
			    }
		    }
			
			if(GUILayout.Button("Start Server"))
			{
				if(playerName != "<NAME ME>")
				{
					Network.useNat = useNAT;
					Network.InitializeServer(32, connectPort);
					
					[COLOR="red"]foreach (GameObject go in FindObjectOfType(typeof(GameObject)))[/COLOR]
					{
						go.SendMessage("OnNetworkLoadedLevel", SendMessageOptions.DontRequireReciver);
					}
					PlayerPrefs.SetString("playerName", playerName);
				}
			}
			
			playerName = GUILayout.TextField(playerName);
			connectToIp = GUILayout.TextField(connectToIp);
			connectPort = Convert.ToInt32(GUILayout.TextField(connectPort.ToString()));
	    }
	   
	    else
	    {
			if(Network.peerType == NetworkPeerType.Connecting) GUILayout.Label("Connecting Status: Connecting");
			else if (Network.peerType == NetworkPeerType.Client)
			{
				GUILayout.Label("Connection Status: Client!");
				GUILayout.Label("Ping To Server: " + Network.GetAveragePing(Network.connections[0]));
			}
			else if (Network.peerType == NetworkPeerType.Server)
			{
				GUILayout.Label("Connection Status: Server!");
				GUILayout.Label("Connections: " + Network.connections.Length);
				if (Network.connections.Length >= 1)
					GUILayout.Label("Ping To Server: " + Network.GetAveragePing(Network.connections[0]));
				
			}
			
			if(GUILayout.Button("Disconnect"))
				Network.Disconnect(200);
			
			ipaddress = Network.player.ipAddress;
			port = Network.player.port.ToString();
			GUILayout.Label("IP Address: " + ipaddress + " : " + port);
	    }
	}
	
	void OnConnectedToServer()
	{
		[COLOR="red"]foreach (GameObject go in FindObjectOfType(typeof(GameObject)))[/COLOR]
		{
			go.SendMessage("OnNetworkLoadedLevel", SendMessageOptions.DontRequireReciver);
		}			
	}
}

Errors:

Assets/Connection.cs(36,41): error CS1579: foreach statement cannot operate on variables of type UnityEngine.Object' because it does not contain a definition for GetEnumerator’ or is not accessible

Assets/Connection.cs(77,17): error CS1579: foreach statement cannot operate on variables of type UnityEngine.Object' because it does not contain a definition for GetEnumerator’ or is not accessible

How to fix that? O.o

I have followed youtube tutorial but there aren’t errors for this foreach loops on it, or did I missed something?

He is writing first foreach loop at 07:50 if you want to check that part in tutorial

2

FindObjectOfType does not provide an enumerator, you have to use FindObjectsOfType