title: How can I fix this error about the shell script invocation Error in Xcode 8?
body: <p><a href="https://i.stack.imgur.com/TejJH.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/TejJH.png" alt="enter image description here"></a></p>
  
  <p>I'm using swift2.2 to develop this app, I want to update this code of app to swift3 and I get this error. Also, I can not fix this error, I have no idea to fix this. Please help me.Thank you!!</p>