Npm install error while following the 'Developing Javascript Apps locally' article

While following instructions in the article ‘Developing Javascripts Apps locally’ of the ‘Create a back end app with javascript’ path,

Can i just ignore the following error and continue the course? I have followed every step in the course succesfully sofar, i feel like i missed something?
How do i ‘get’ a package.json?

There are no local projects yet, except for HELLO_HTML from the first VS Code tutorial.

~ % npm install

npm WARN saveError ENOENT: no such file or directory, open ‘/Users/arejas/package.json’

npm notice created a lockfile as package-lock.json. You should commit this file.

npm WARN enoent ENOENT: no such file or directory, open ‘/Users/arejas/package.json’

npm WARN arejas No description

npm WARN arejas No repository field.

npm WARN arejas No README data

npm WARN arejas No license field.

Thanks in advance,