It looks like you are trying to install the debian package. It also looks like you don't get an error. It is just the output of the first command (of four that you need to type).
Yesterday, we released Spotify as a snap package. It should be much easier to install than the debian package. Open a terminal and type:
snap install spotify
or open the app Ubuntu Software, search for Spotify and click install.
The page https://www.spotify.com/download/linux/ will soon be updated with these instructions.