Why does it show an error in the console when compiling a .pug file?

Question

Command line

I'm still zero in node.js, so I decided to install the pug plugin for layout.
I want to run the command pug —pretty index.htmlso that the code is in a readable form, but it gives me an error
What am I doing wrong

Answer 1

in what you need --pretty and not -pretty
Read about short-options and long-options and do not confuse double hyphen and single hyphen.