title: Cant import module to xcode
body: <p>I have the same problem as described <a href="https://stackoverflow.com/questions/44361827/how-to-import-module-into-xcode">here</a>: I cant add socket.io module to my project. </p>
  
  <p>I've tried all ways of dragging and dropping as described in answer, I've tried adding files to project from File menu. No matter what I do I get compile error "SocketIO module not found" on string <code>import SocketIO</code></p>
  
  <p>Is there a regular way of adding modules? Command line? Sorry if question sounds dummy - Im new not only to swift but to mac also (bought it to learn swift).</p>