There are a few ways to install Node.js, but it looks only one way gives you the best experience for long term.

On Mac

The best way to install Node.js on Mac is nvm.

https://github.com/creationix/nvm

You have to have on your Mac the Command Line Tools. Or you install the full XCode from App Store either just use the small Command Line Tools installer:

$ xcode-select --install

(If you’ve just installed XCode, don’t forget to launch it first and accepting the Terms and Conditions.)

You can use the install script for nvm installation.

$ curl -o- https://raw.githubusercontent.com/creationix/nvm/v0.32.0/install.sh | bash

However, I would encourage you to use the manual installation process. Nothing special there. Firstly, you just clone the whole repo in a subfolder in your home directory. (~/.nvm) Secondly, you add two extra lines to your console script.

Please follow these steps on NVM Readme: https://github.com/creationix/nvm#manual-install

You have to relaunch your Terminals. Maybe you have to log out and log back to activate the new settings.

List your installed node versions:

$ nvm list

List the available node versions in the cloud:

$ nvm ls-remote

You can use the combination of this two commands to see only the last 9 lines from the huge list of versions: $ nvm ls-remote | tail -n9

It is safe if you choose one of the most recent LTS (long time support) version and install it with the following command:

$ nvm install 6.9.1

Setup this version as the default.

$ nvm use 6.9.1
$ nvm alias default 6.9.1

Check your node version with

$ node -v

You should see v6.9.1 if you installed the above version.

You can update your npm to the latest.

$ npm install -g npm

After the update, the npm version, npm -v, should be at least 3.10.9 or above.

Alternatives, but not suggested:

On Linux

Please avoid to install Node.js with apt-get on Ubuntu. If you already installed Node.js with the built in package manager, please remove that. (sudo apt-get purge nodejs && sudo apt-get autoremove && sudo apt-get autoclean)

The installation process on Linux is the same as on OSX.

With the provided script:

$ curl -o- https://raw.githubusercontent.com/creationix/nvm/v0.32.0/install.sh | bash

(Please read the instructions under OSX section.)

$ nvm list
$ nvm ls-remote
$ nvm install 6.9.1
$ nvm use 6.9.1
$ nvm alias default 6.9.1
$ node -v
$ npm install -g npm
$ npm -v

One more thing! Don’t forget to run the following command, which increases the amount of inotify watches.

$ echo fs.inotify.max_user_watches=524288 | sudo tee -a /etc/sysctl.conf && sudo sysctl -p

On Windows

On Windows, if you don’t need more version from Node.js, you can use the official installer.

Install also Git for Windows.

Additionally, don’t forget to read this instruction, which is very interesting not just for Ember developers, but for everybody who uses Node.js on Windows.

Plus install and run ember-cli-windows

$ npm install -g ember-cli-windows
$ ember-cli-windows

More here: https://github.com/felixrieseberg/ember-cli-windows

Always run your PowerShell or CMD.exe as Administrator.

Don’t forget to run these two commands in PowerShell (as Administrator):

$ Set-ExecutionPolicy Unrestricted -scope Process
$ ember-cli-windows

Log out and log back in Windows.

Try to upgrade npm and after install the latest ember-cli

$ npm install -g npm
$ npm install -g ember-cli

I would suggest, experiment with different shells. Which worked better for you? PowerShell, Git Shell, the original CMD.exe? Please, share your Windows experiment in a comment.

Now, you have Node.js on your machine, it’s time to go back to the Emberjs Tutorial