title: OmniSharp server is not running macOS 10.13.6
body: <p>OmniSharp server is not running on my VS code. I tried with reinstall both VS code and C# extension powered by omniSharp, but it is still not running. I am working in a macOS 10.13.6.<br />
  So I do not get any error (red highlighting in case inaccurate code ) or in my code. Any advise how to solve this?</p>
  <p><a href="https://i.stack.imgur.com/mosLi.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/mosLi.png" alt="pic from VS code" /></a></p>