Why Error: Cannot find module 'gulp-sass' if the module is installed?

Question

Node.js

I work on windows 10. Gulp is installed.
there is gulp-sass in package-json, I installed it both globally and in my project, eventually I run it and see this:
Error: Cannot find module 'gulp-sass' I
also installed gulp-ruby-sass in the end, the same thing :(
Wrote npm update and reinstalled, the error remains.

Answer 1

npm i gulp-sasssure it doesn't help?
Throw the task code and variable declarations in gulpfile

Answer 2

Maybe it needs to be imported into a file?