Set up the ANDROID_HOME environment variable on MacOS

The file is called .bash_profile and can be found in your home directory (/Users/<username>)

To add your ANDROID_HOME environment variable there, you would need to add the following line to your .bash_profile

export ANDROID_HOME=/path/to/android/sdk

To apply the changes, restart your terminal. Confirm that the changes have been applied by typing the following in your terminal:

echo $ANDROID_HOME

Your output should be /path/to/android/sdk as entered above.

These line should be add to your Shell Initialization Files：

export ANDROID_HOME=/Users/{YourUserName}/Library/Android/sdk
export ANDROID_NDK=$ANDROID_HOME/ndk-bundle

• If you are using bash (by default), you should add these lines to your ~.bash_profile or ~.bashrc
• If you are using zsh, you should add these lines to your ~/.zshrc

If you are setting up the ANDROID_HOME environment variable on macOS Catalina, .bash_profile is no longer Apple's default shell, and it won't persist your path variables. Use .zprofile instead and follow the environment setup instructions in react-native documentation or others. .bash_profile will keep creating new file which won't make the path permanent or persist on closing the terminal on your system path.

To create a new path just do this in macOS Big Sur:

1. sudo touch ~/.zshrc
2. sudo nano ~/.zshrc
3. export all the path
4. ctrl + x and save
5. source ~/.zshrc
6. Check with echo $PATH

Old school way to check if .bash_profile file exists following could be done:

1. Go to Finder>Go>COMPUTER>Mac HD>Users, THEN click on your user account.

2. Now hold down ⌘ + ⇧ + ., this will now display hidden files and folders. It will look something like this:

In case the ⌘ + ⇧ + . does not work, please look up the keyboard shortcut relevant for your Mac Operating system name.