Npm/Yarn Not installing properly and giving issues

Question

node ./postinstall.js

ngrok - error unpacking binary Error: You cannot extract a file outside of the target path

npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! @expo/[email protected] postinstall: node ./postinstall.js
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the @expo/[email protected] postinstall script.

• OS: Windows 10
• node: 8.11.4
• npm: 6.4.0

Answer 1

sudo npm i -g ngrok --unsafe-perm=true --allow-root

This will fix your issue.