`ReferenceError: self is not defined` after re-installing npm packages

[expo]

`ReferenceError: self is not defined` after re-installing npm packages

[iamnapo]

Try:

rm -rf node_modules
npm i [email protected] --save
npm install

[iamnapo]

I think this is the problem (isomorphic-fetch is a module expo uses). npm install installs the newly released v3 of whatwg-fetch, which seems to cause the problem, whereas expo init uses its own lockfile and installs a previous version.

[apaatsio]

@iamnapo Thank you. That fixed the symptom. I wonder what the underlying problem is though. What does expo init do differently than npm install?

[corasan]

I added GLOBAL.self = GLOBAL to the top of my App.js file so I guess doing npm i [email protected] --save is better

[ccheever]

I tried this with the latest version of expo-cli and it doesn't appear to be a problem anymore.

(after doing the rm -rf node_modules and npm install)

I'll close for now. But please reopen (and give more details) if you encounter this again!