Why does my InvokeRepeating not work

Unity Engine
,
1

Im trying to spawn pipes at (20,0,0) every second after two seconds but It wont work.

it doesnt give any errors or feedback so I dont know what im doing wrong

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class SpawnManager : MonoBehaviour
{
public GameObject[ ] PipePrefabs;
public int PipeIndex;
public float SpawnInterval = 1;
public float startDelay = 2;
// Start is called before the first frame update
void Start()
{
InvokeRepeating(“SpawnRandomPipeType”, startDelay, SpawnInterval);
}

// Update is called once per frame

void SpawnRandomPipeType()
{
if (Input.GetKeyDown(KeyCode.S))
{
int PipeIndex = Random.Range(0, 10);

Instantiate(PipePrefabs[PipeIndex], new Vector3(20, 0, 0), PipePrefabs[PipeIndex].transform.rotation);
}
}
}

2

if (Input.GetKeyDown(KeyCode.S))

3

This question has nothing to do with the Job System. Next question in the plain old scripting forum, and use the code tags.