C:\repos\newApp>expo start
[06:45:49] Starting project at C:\repos\newApp
[06:45:51] Expo DevTools is running at http://localhost:19002
[06:45:51] Opening DevTools in the browser… (press shift-d to disable)
Error: spawn cmd ENOENT
at Process.ChildProcess._handle.onexit (internal/child_process.js:240:19)
at onErrorNT (internal/child_process.js:415:16)
at process._tickCallback (internal/process/next_tick.js:63:19)
When I received THE DEBUGGING MESSAGE. I then went to Settings in my Device and went to Developers options and Turn that ON in USB debugging. Try it that was one of the steps for setup. hope that helps