nats server error

[andim27]

Can't start nats-server on master branch:
I am doing next:
git checkout master
./scripts/all start
In the logs I see next:

[2021-12-07 16:42:01.512] INFO default: [main.go:40] [main.main.func1] start pprof on :6060
[2021-12-07 16:42:01.512] ERROR default: [node.go:50] [ion.(*Node).Start] new nats conn error nats: no servers available for connection
[2021-12-07 16:42:01.512] ERROR default: [main.go:53] [main.main] sfu init start: nats: no servers available for connection

Even setup nats in manual mode after what I see next:
[Failed]: islb is not running, run by service scripts

Question: How correctly starts nats-server(and islb) ?

[adwpc]

install nats-server first，see：scripts/inst_dep