To resolve this issue, ensure that nvm is properly set up in your shell configuration. Since you are using zsh, add the following lines to your .zshrc file:
brew upgrade
brew install nvm
echo 'export NVM_DIR="$HOME/.nvm"' >> ~/.zshrc
echo '[ -s "$(brew --prefix nvm)/nvm.sh" ] && \. "$(brew --prefix nvm)/nvm.sh"' >> ~/.zshrc
echo '[ -s "$(brew --prefix nvm)/etc/bash_completion.d/nvm" ] && \. "$(brew --prefix nvm)/etc/bash_completion.d/nvm"' >> ~/.zshrc
source ~/.zshrc
After running these commands, nvm should be set up correctly. You can verify the installation by checking the nvm version:
$ nvm --version
Videos
To resolve this issue, ensure that nvm is properly set up in your shell configuration. Since you are using zsh, add the following lines to your .zshrc file:
brew upgrade
brew install nvm
echo 'export NVM_DIR="$HOME/.nvm"' >> ~/.zshrc
echo '[ -s "$(brew --prefix nvm)/nvm.sh" ] && \. "$(brew --prefix nvm)/nvm.sh"' >> ~/.zshrc
echo '[ -s "$(brew --prefix nvm)/etc/bash_completion.d/nvm" ] && \. "$(brew --prefix nvm)/etc/bash_completion.d/nvm"' >> ~/.zshrc
source ~/.zshrc
After running these commands, nvm should be set up correctly. You can verify the installation by checking the nvm version:
$ nvm --version
Looking at the warning which you added in your question, I surmise that nvm is installed on your machine but may not have been setup properly. Nevertheless, adding full steps for you to verify which one you missed and fix the same.
1. Confirm nvm is installed
Before making changes, check if nvm exists:
# confirm nvm is installed
$ brew list | grep nvm
# if the above doesn't return anything, install nvm
$ brew install nvm
2. Ensure your system is in good shape
Sometimes Homebrew issues prevent nvm from working properly. For that run:
$ brew doctor
# If you see any warnings, follow the suggested fixes and
# rerun brew doctor until everything looks good.
3. Create the nvm directory (if missing)
$ mkdir -p ~/.nvm
4. Add nvm to your shell configuration
Manually add these lines to ~/.zshrc:
export NVM_DIR="$HOME/.nvm"
[ -s "$(brew --prefix nvm)/nvm.sh" ] && . "$(brew --prefix nvm)/nvm.sh"
[ -s "$(brew --prefix nvm)/etc/bash_completion.d/nvm" ] && . "$(brew --prefix nvm)/etc/bash_completion.d/nvm"
Save the file and reload the configuration:
$ source ~/.zshrc
5. Verify and Restart
Check if nvm is now working:
$ nvm -v
If you still get an error, restart your terminal and try again. Sometimes failing to do this might also lead to issues.
I come across this decision every time I get a new Mac laptop/computer.
I like nvm, node version manager, because it allows me to install multiple versions of node/npm in case I need to switch within different versions.
Does homebrew offer the same? Are there other install recommendations for Mac?
The need to switch node versions does come up when asked to work on another project that is “stuck” on an older version of node due to outdated packages that no one wants to maintain but is still used in the project.
April 12, 2023 Update Thanks for all the great recommendations and insight. I decided to use fnm for my own preference at this time, but all alternatives seem great in their own way. Here is a great article from Honeybadger comparing many node environment managers: https://www.honeybadger.io/blog/node-environment-managers