expo-environment.md

Expo Environment Setup

watchman

Make sure you have brew package manager installed: NOTE: To successfully run the iOS e2e tests, it is essential to install the brew package manager. How to install brew

Now install Watchman. Watchman is a tool by Facebook for watching changes in the filesystem. It is highly recommended you install it for better performance.

brew install watchman

Node

It is recommended to install a Node version manager such as nodenv, nvm, asdf

Install node version defined in the file .nvmrc

Yarn v1

Ensure you are using the correct yarn version (yarn v1) as noted in the package.json.

Install Yarn using corepack (recommended)

corepack enable

# check yarn version
yarn --version

Install Yarn V1 with NPM

npm install -g yarn

# check yarn version
yarn --version