gnome-music build

[sandeep chauhan <sandeepsajan0 gmail com>]

hey 

myself sandeep 

I am new in this organisation and also in open source

I face a problem when I build the project "gnome-music"

   I had instructed to build this from "Readme" on    https://github.com/GNOME/gnome-music

and I also build  "jhbuild"  from   https://wiki.gnome.org/Newcomers/Old/BuildGNOME

but after all when I run the command    "jhbuild build gnome-music"

the I get a message 

""jhbuild build: Required system dependencies not installed. Install using the command 'jhbuild sysdeps --install' or to ignore system dependencies use command-line option --nodeps""

but I already run the command  "jhbuild sysdeps --install gnome-music" before the above command.

what I do I don't understand 

pls help me

thanks.