xcode 8 Beta Erases my app after conversion to swift 3

As the subject says, I open my app in xcode 8 beta, convert to swift 3, and all my swift files and images, etc show in the left hand panel, but in the general settings, my app has changed to version 1 ( like it is a brand new app), and when i select the main storyboard there is nothing there but an inital viewcontroller! I just don't understand what the **** is going on!