title: XCDatamodeld file disappeared off of computer and now project won't run
body: <p>Yesterday I had converted my project to Swift 3. I had committed my project to source control before doing this so that I could revert my changes. When I reverted my changes, Xcode crashed and when I had gotten it re-opened, I had a few problems. The biggest one that I am dealing with now is my xcdatamodeld file is gone. I have searched my computer for it, but for some reason it seems to be deleted. So my question is can I create a new xcdatamodel file exactly like my previous one? </p>
  
  <p>Thank you in advance for your help</p>