Where to set the bundle identifier?

Hi,

I downloaded unity, create a simple first person walking around the terrain app. Go go build settings and set to android, checked development build. Hit build and unity gave me the error “Error building Player: UnityException: Bundle Identifier has not been set up correctly” Then I go search online I can’t find a place to set my “Bundle identifier”. Anyone please help?

Should be in Edit → Project Settings → Player

thanks