Why is gulp swearing?

Question

Layout

Good afternoon. I'm setting up gulp for the first time, I'm doing it according to one of the videos on youtube (dated February 2021) and apparently something has changed during this time. Everything was fine at first, but something with sass. When building, it gives an error:

error in terminal

Here is my gulpfile:

gulpfile

Advised to install node-sass , installed, nothing changed