title: Error opening iOS Simulator with iOS 8 beta version: "Unable to boot the iOS Simulator"
body: <p>I recently installed the beta of Xcode Version 6 in OS X Mavericks, with which comes the iOS simulator for iOS 8. I've managed to successfully run from Xcode 6 beta on a device with iOS 8 Beta, but opening the simulator always get the same error I have tried to change the hardware version of iPhone 4s, iPhone 5, ... in the simulator and still gives the same error: "Unable to boot the iOS Simulator".</p>
  
  <p><img src="https://i.stack.imgur.com/B6q1B.png" alt="enter image description here"></p>
  
  <p>I'm working with Xcode 5.1 at the same time in Mavericks, any suggestion to solve this? Is a possible problem for run this simulator in Mavericks because is only for OS X 10.10? Thanks.</p>