Why is the React Native project not starting?

Question

React Native

I decided to work with React Native, but problems started.
Installed everything as on the official. site

But when I try to run the project, I get an error: "Unable to find expo in this project - have you run yarn / npm install yet?" and for some reason, the node_modules folder does not appear in the project, and when you try to do npm install (the same with yarn), an error occurs.

I uninstalled yarn, reinstalled expo-cli, tried to initialize new projects via npm, did launches through all possible commands expo start, npm start, yarn start, even updated node.js, but nothing helped :(

Why nothing works and how to run project?