Resolving the "zsh: command not found: yarn" Error on macOS

As a new Mac user transitioning from a Windows environment, you will encounter some initial challenges while setting up your development environment. One of the primary issues I faced was running the yarn command in the terminal. Here's a step-by-step account of resolving the zsh: command not found: yarn error.

😑 Problem: zsh: command not found: yarn

After cloning my project repository and navigating into the directory, I tried running yarn to install dependencies but got the error below:

zsh: command not found: yarn

😊 Solution

This error indicates that yarn is not installed on your system. To fix this, I used Homebrew, a package manager for macOS, to install yarn.

1) Install Homebrew (if not already installed):
Homebrew simplifies the installation of software on macOS. Open your terminal and run:

/bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)"

2) Install yarn:
With Homebrew installed, you can now install yarn by running:

brew install yarn

3) Verify yarn installation:
After the installation, verify that Yyrn is installed by running:

yarn -v

😑 Problem: env: node: No such file or directory
While verifying yarn installation, I encountered another error:

env: node: No such file or directory

This error indicates that yarn is installed, but it cannot find Node.js. Yarn depends on Node.js to run.

😊 Solution:
To resolve this, you need to install Node.js using Homebrew:

1) Install Node.js:

brew install node

2) Verify both yarn and Node.js Installation as shown below.

node -v
yarn -v

This time, the command should work without any issues, and you can proceed with installing dependencies and running your application.

Hope this helps.