Gun shoot problem?

I’m currently participating in a Unity tutorial, and I ran into something weird. The term “&&,” which he uses, is an “invalid expression” in my game. I don’t understand, could it be a simple mistake I made earlier in the script? This is a piece of it:

void Update()
if (Input.GetButtonDown(“Fire1”)) &&
Time.time > nextFire) {
nextFire = Time.time + fireRate;


        Vector3 rayOrigin = fpsCam.ViewportToWorldPoint(new

Vector3(0.5f, 0.5f, 0));

Also, this is the tutorial: Let’s Try: Shooting with Raycasts (Video)

There’s an extra closing parentheses.

if (Input.GetButtonDown("Fire1")) && Time.time > nextFire)
if (Input.GetButtonDown("Fire1") && Time.time > nextFire)