No such file: package.json

I’m following the tutorial.
I’ve gotten up to this point:

I’ve created the component directory and edited the files according to the tutorial.

However, when I try to run ‘frontity run dev’, I get the following message:

Error: ENOENT: no such file or directory, open ‘/home/bob/play/frontity/lmlmusic/packages/lmlmusic/src/components/package.json’

What are the requirements for a package.json file in the components directory?

Also, why is this requirements not in the tutorial?