title: Storyboard Suddenly GONE from Xcode
body: <p>While I was working on this Xcode project, compile and run an app, the two files suddenly gone!!!</p>
  
  <p>It was working fine and I run the app a few times already. Anybody has any clue why is it happening? </p>
  
  <p>My Mac is warning for Disk Space recently. Would it be something related? </p>
  
  <p>Please help...I have been working on the project for a few weeks already. Anyway I could recover what I lost? I archive it a few hours ago into an IPA, can I recover the lost files from there? </p>
  
  <p>Thanks a lot. </p>
  
  <p><img src="https://i.stack.imgur.com/Kk2SI.png" alt="enter image description here"></p>
  
  <p><img src="https://i.stack.imgur.com/OcNhT.png" alt="enter image description here"></p>
  
  <p>EDIT-------------------------------------</p>
  
  <p>The Files are gone and I have to work for 12 hours to get my app back to running as it was before.</p>
  
  <p>I think the problem was that my Mac was out of Disk Space, and when I tried to run, the AutoSave from Xcode failed to save. And for some reason the failure caused Xcode the delete the file when saving failed.</p>
  
  <p>Learning from the lesson. I will do what folks here suggested from now on:
  1) Time Machine
  2) Git 
  3) Periodic zip the project and put on Dropbox and an external hard disk
  4) Always ensure there's enough disk space</p>
  
  <p>Thanks all. Hope nobody else would have to go through what I went through.</p>