Jitsi Make doesn't generate any build file

I’ve followed each steps provided here , everything went well until the make process. It logged this message at the end of the build

command ./node_modules/.bin/sass css/main.scss css/all.bundle.css &&
./node_modules/.bin/cleancss --skip-rebase css/all.bundle.css > css/all.css ;
rm css/all.bundle.css
([ ! -x deploy-local.sh ] || ./deploy-local.sh)
rm -fr build

which is weird compared to the tutorial’s output which is showing this message

Rendering Complete, saving .css file…
Wrote CSS to /home/ubuntu/jitsi-meet/css/all.bundle.css

my /home folder is still empty by the end of the build.