title: Terminal: Swift Build command does not work
body: <p>When I am using Swift Package builder in the OSX terminal, it does now work.  </p>
  
  <pre><code>swift build
  </code></pre>
  
  <p>I get: </p>
  
  <blockquote>
    <p>:0: error: no such file or directory: 'build'</p>
  </blockquote>
  
  <p>REPL works and all the snapshots seem to be installed. Does anyone know the issue?</p>