"Hmm? Shall we see it here?"
So, I was embarrassed to get hooked without noticing it, so I made a memorandum.
There is a lot of information on stories such as npm and yarn, so go there.
Since it is, both js and css are build targets.
~~abridgement~~ import "../stylesheets/application";
@import "~bootstrap/scss/bootstrap"; @import "./custom.min";
I checked the file structure including this area, but there was no problem.
I checked the error again. .. ..
Successful build. Tohoho. ..
Be careful with the extension.