With the open-source NativeScript command-line interface and an IDE or text editor of your choice, you can create, develop, store, and build your apps locally, free of charge and anonymously. Let’s look at how to set up the CLI for development.
The NativeScript CLI is built on Node.js, and as such you need to have Node.js installed to use NativeScript.
You can check whether you have Node.js set up by opening a terminal or command prompt and executing
node --version. If you get an error, head to https://nodejs.org/ and download and install the latest “LTS” (long-term support) distribution and restart your terminal or command prompt.
- If you’re on macOS and use Homebrew, you can alternatively install the Node.js LTS release by running
brew update(to download the latest updates) and then
brew install node@6in your terminal.
- The NativeScript CLI supports a wide variety of Node.js versions, so if you already have Node.js installed you should be good to go. If, by chance, you’re running an unsupported version, the
tns doctorcommand we’ll run momentarily will flag the problem so you can upgrade.
NOTE: Mac users, bear in mind that you should add the path to
node@6/binmanually by running
echo 'export PATH="/usr/local/opt/node@6/bin:$PATH"' >> ~/.bash_profileand restart your terminal.
Open your terminal or command prompt and execute the following command to install the NativeScript CLI from npm, which is the Node.js package manager:
npm install -g nativescript
- You may be asked two questions during the installation—Do you want to visit the official documentation?, and Do you want to run the setup script? Go ahead and answer “No” to both questions for now as we’ll cover the documentation and scripts momentarily.
- If you’re on macOS and receive an EACCES error, you either need to rerun the previous command with
sudo npm install -g nativescript—or take a moment to fix your npm permissions so that you don’t need admin rights to globally install npm packages.
After completing the setup you should have two commands available from your terminal or command prompt:
tns—which is short for Telerik NativeScript—and
nativescript. The two commands are equivalent, so we'll stick with the shorter
You can verify the installation was successful by running
tns in your terminal. You should see a long list of commands that starts with this section:
$ tns # NativeScript ┌─────────┬─────────────────────────────────────────────────────────────────────┐ │ Usage │ Synopsis │ │ General │ $ tns <Command> [Command Parameters] [--command <Options>] │ │ Alias │ $ nativescript <Command> [Command Parameters] [--command <Options>] │ └─────────┴─────────────────────────────────────────────────────────────────────┘
When you build with NativeScript you’re building truly native iOS and Android apps, and as such, you need to set up each platform you intend to build for on your development machine. To ease the pain of installing all of these requirements manually, the NativeScript CLI provides quick-start scripts for Windows and macOS. Let’s look at how they work.
- Setting up your machine for native development can be tricky, especially if you’re new to mobile development. If you get stuck, or if you have questions while going through these instructions, the NativeScript community forum is a great place to get help.
- If you’re not comfortable with a script automatically installing dependencies on your development machine, or if you’re on Linux, refer to one of the advanced setup guides below for details on manually installing NativeScript’s iOS and Android dependencies.
If you’re on Windows, copy and paste the script below into your command prompt as an administrator and press Enter:
Please be sure that you run this command in cmd as an administator (Windows key > type "cmd" > right click > Run as Administrator).
@powershell -NoProfile -ExecutionPolicy Bypass -Command "iex ((new-object net.webclient).DownloadString('https://www.nativescript.org/setup/win'))"
During installation you may need to accept a User Account Control prompt to grant the script administrative privileges. Also, be aware that the script downloads and installs some big dependencies—so it’s common for the script to take a while to complete. When the script finishes, close and reopen your command prompt.
NOTE: On Windows and Linux systems you can only use the NativeScript CLI to develop Android apps. This is because the NativeScript CLI uses Xcode to build iOS apps, which is only available on macOS. If you’re interested in building iOS apps on Windows or Linux, you should download NativeScript Sidekick.
If you’re on a Mac, copy and paste the script below into your terminal and press Enter:
ruby -e "$(curl -fsSL https://www.nativescript.org/setup/mac)"
The macOS script needs administrative access to run some commands using
sudo; therefore, you may need to provide your password several times during execution. The macOS script also may take some time to complete, as it’s installing the dependencies for both iOS and Android development. When the script finishes, close and restart your terminal.
Once you’ve finished installing NativeScript and its dependencies, run the
tns doctor command, which will check for any issues with your installation.
If you see “No issues were detected” you’re good to go!