How so say whoops in french?

I'm sure there are many ways, but I might say,

oups, je me suis trompé (de salle, d'adresse, etc.) -- "oops zhuh muh sewee troh[n]-pay"

It literally means, "oops, I made a mistake/ mixed things up," etc. When you add a noun at the end after de, it means, "oops, I got the wrong room/ the wrong address," etc.