Problem at spawning script

Unity Engine
1

I have a problem with this spawning script and I don’t know how to repair it.
using UnityEngine;
using System.Collections;

public class Spawn : MonoBehaviour {

public GameObject[ ] eggs;
private float time;
public float timelimit=0.5f;
bool spot=false;
void Start () {

}

void Update () {

time += Time.deltaTime;
if (time >= timelimit) {
time = 0;
StartCoroutine(Spwn());
}
}
public void Spot(bool x)
{
spot = x;
}
IEnumerator Spwn()
{
while(!spot)
{
spot=true;
Instantiate(Random.Range(0f,11f), new Vector3(Random.Range (-37.31105f,51.35894f), 0f,Random.Range (-115.5185f,-189.02f)), Quaternion.identity) as GameObject;
yield return null;
}
}
}

2

use the Code Tags
Also you should explain what your problem is and post any error messages that unity gives you in the console.

3 
using UnityEngine;
using System.Collections;

public class Spawn : MonoBehaviour {

    public GameObject[] eggs;
    private float time;
    public float timelimit=0.5f;
    bool spot=false;
    void Start () {
       
    }

    void Update () {
   
        time += Time.deltaTime;
        if (time >= timelimit) {
            time = 0;
            StartCoroutine(Spwn());
        }
    }
    public void Spot(bool x)
    {
        spot = x;
    }
    IEnumerator Spwn()
    {
        while(!spot)
        {
            spot=true;
            Instantiate(Random.Range(0f,11f), new Vector3(Random.Range (-37.31105f,51.35894f), 0f,Random.Range (-115.5185f,-189.02f)), Quaternion.identity) as GameObject;
            yield return null;
        }
    }
}

Sorry for the post, i didn’t know about the code tag and the error is: Assets/Spawn.cs(31,182): error CS0201: Only assignment, call, increment, decrement, and new object expressions can be used as a statement, at the 31st line

4

You are trying to Instantiate a float value… should be a gameobject

Instantiate(prefabName, newVector3(Random.Range(-37.31105f,51.35894f), 0f,Random.Range(-115.5185f,-189.02f)), Quaternion.identity)asGameObject;