title: Unable to add filesystem permission denied
body: <p>Using node v 8.9.0 and this <a href="https://rominirani.com/google-cloud-functions-tutorial-debugging-local-functions-357c24829198" rel="noreferrer">tutorial</a></p>
  
  <p>When I try and debug my http google cloud function in dev tools:</p>
  
  <p>C:_Users_Matt_AppData_Roaming_nvm_v8.9.0_node_modules_@google-cloud_functions-emulator_src_supervis</p>
  
  <p>I get filesystem permission denied error, how can I debug my cloud functions:</p>