From a powershell window run: .\build.ps1
If you get an error saying:
.\build.ps1 : File .\build.ps1 cannot be loaded because running scripts is disabled on this system. For more information, see
about_Execution_Policies at http://go.microsoft.com/fwlink/?LinkID=135170.
At line:1 char:1
+ .\build.ps1
+ ~~~~~~~~~~~
+ CategoryInfo : SecurityError: (:) [], PSSecurityException
+ FullyQualifiedErrorId : UnauthorizedAccess
Execute Set-ExecutionPolicy Unrestricted at the command prompt and re-run the command.