title: FXKeychain-ios example project doesn't work and it doesn't compile
body: <p>I'm working on a project that uses the library 'FXKeychain' that i downloaded from here: 
       <a href="https://i.stack.imgur.com/hOUT7.png" rel="nofollow noreferrer">1</a>: <a href="https://github.com/nicklockwood/FXKeychain" rel="nofollow noreferrer">https://github.com/nicklockwood/FXKeychain</a>
  This lib cams with some examples projects but the project does not compile.</p>
  
  <p>Is it any prerequisites in order to run this project/ use this lib??. maybe come component installed in the computer 
  Thanks in advance!<img src="https://i.stack.imgur.com/hOUT7.png" alt="This capture show the errors that i&#39;m having"></p>