Rebuild app pages and controllers

i made an app folowing the chat app guide the problem is with the step “test” where i type
“frappe --build_sitemap” command but it shows me:

frappe: error: unrecognized arguments: --build_sitemap

is there a way to use frappe comands without typing bench in the front like “bench frappe etc” ?

The chat app is not updated.

There is no special build website now bench frappe -b should do it.