React Native Expo Can't Find Variable Self

Question

I am suddenly getting this error while creating the new project in expo, when I create any project it loads perfectly and can see the default screen.

When I try to inst

Answer 1

so the answer to that is

"Yes you have to put it in package.json. Manually, with “yarn add whatwg-fetch@2.0.4.” or with “npm install whatwg-fetch@2.0.4”"