Server not show my theme

Hello sir i have a problem kindly solve it please…
i want to show my install theme on local server but the when i run server it doen’t show any thing

C:\Hugo\Sites\test>hugo server -w
There is noting to show i also write this command to change my port 80 to 81 but nothing to show

C:\Hugo\Sites\test>hugo server --baseURL= \ --port=81 \ --appendPort=false \ --bind=

Did you specify a theme in the config file? You can also specify it with the --theme flag.