Building Server
Open scene "22 - Authoritative" under examples scene folder.

Ensure that following option if correctly, if not, change it.
- Server mode is in Authoritative mode.

- Server connection type shall be selected

- "Connect on Start" is checked ( This will ensure that server will start after launched )

- Now you need to switch you project to "Dedicated Server Mode" ( see Unity Dedicated Server )

- After finished a "Build" option shall appear

- Build server mode into a separated folder ( It's important separate Game build from Server build )

- No run the server build

- Server should be run without any problem

The log shall show the server up and running and the current user transport system.