Symfony 5 book The fast track failed to clone git repository

  git, php, symfony

I have the book Symfony 5 – the fast track and I am facing an issue when executing the command
symfony new –version=5.0.1 –book guestbook.
It might be related to a git setup issue but I am also a Php beginner so I don’t know what exactly the command symfony is doing.
Anyway this is the error I have in the shell.

Cloning into ‘/Users/guido/Projects/php/ft5/guestbook’…
remote: Repository not found.
fatal: repository ‘’ not found

error cloning the Git repository for the book: exit status 128

Source: Symfony Questions