title: How to use Repl Xcode 7? Getting error for absolute path
body: <p>I wanted to use REPL for Swift with XCode-7 Public Beta installed on my system. But an attempt to run via the absolute path in the terminal window like this:</p>
  
  <pre><code>$ cd /Applications
  $ ./Xcode-beta.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swift
  </code></pre>
  
  <p>throws an error --</p>
  
  <pre><code>&lt;unknown&gt;:0: error: Swift does not support the SDK 'MacOSX10.10.sdk'
  </code></pre>
  
  <p>Is there a setting I'm missing for the SDK? I tried to search for it, and went through the Release notes too, but to no avail :(</p>