On page 212, the reader is instructed to create a file called lib/pento_web/live/rating_live/show_component.ex and add some content to it. However, on the next line, the file (and it’s URL) are written as stateful_components/pento/lib/pento_web/live/rating_live/show.ex.
Presumably, the name of the file is supposed to be .../show.ex.