Flutter Setup for macOS

System requirements

To install and run Flutter, your development environment must meet these minimum requirements:

  • Operating Systems: macOS (64-bit)
  • Disk Space: 700 MB (does not include disk space for Xcode or Android Studio).
  • Tools: Flutter depends on these command-line tools being available in your environment.
    • bash, mkdir, rm, git, curl, unzip, which

Get the Flutter SDK

To get Flutter, use git to clone the repository and then add the flutter tool to your path. Running flutter doctor shows any remaining dependencies you may need to install.

Clone the repo

If this is the first time you’re installing Flutter on this machine, clone the alpha branch of the repository and then add the flutter tool to your path:

$ git clone -b alpha https://github.com/flutter/flutter.git
$ export PATH=`pwd`/flutter/bin:$PATH

The above command sets your PATH variable temporarily, for the current terminal window. To permanently add Flutter to your path, see Update your path.

To update an existing version of Flutter, see Upgrading Flutter.

Run flutter doctor

Run the following command to see if there are any dependencies you need to install to complete the setup:

$ flutter doctor

This command checks your environment and displays a report to the terminal window. The Dart SDK is bundled with Flutter; it is not necessary to install Dart separately. Check the output carefully for other software you may need to install or further tasks to perform (shown in bold text).

For example:

✗ Xcode end user license agreement not signed; open Xcode or run the command 'sudo xcodebuild -license'.

✗ Brew not installed; use this to install tools for iOS device development.

  Download brew at http://brew.sh/.

The first time you run the flutter command, it downloads its own dependencies and compiles itself. Subsequent runs should be much faster.

The following sections describe how to perform these tasks and finish the setup process. You’ll see in flutter doctor output that if you choose to use an IDE, plugins are available for IntelliJ IDEA. See IntelliJ Setup for the steps to install the Flutter and Dart plugins.

Once you have installed any missing dependencies, run the flutter doctor command again to verify that you’ve set everything up correctly.

The flutter tool uses Google Analytics to anonymously report feature usage statistics and basic crash reports. This data is used to help improve Flutter tools over time. Analytics is not sent on the very first run or for any runs involving flutter config, so you can opt out of analytics before any data is sent. To disable reporting, type flutter config --no-analytics and to display the current setting, type flutter config. See Google’s privacy policy:www.google.com/intl/en/policies/privacy.

Update your path

You can update your PATH variable for the current session only at the command line, as shown in Clone the Flutter repo. You’ll probably want to update this variable permanently, so you can run flutter commands in any terminal session.

The steps for modifying this variable permanently for all terminal sessions are machine- specific. Typically you add a line to a file that is executed whenever you open a new window. For example:

  1. Open (or create) $HOME/.bash_profile. Note that the file path and filename might be different on your machine.
  2. Add the following line:

    export PATH=$HOME/flutter/bin:$PATH
    
  3. Run source $HOME/.bash_profile to refresh the current window.

  4. Verify that the flutter/bin directory is now in your PATH by running:
    $ echo $PATH
    

Editor setup

Using the flutter command-line tools, you can use any editor to develop Flutter applications. Type flutter help at a prompt to view the available tools.

We recommend using our IntelliJ plug-ins for a rich IDE experience supporting editing, running, and debugging Flutter apps. See IntelliJ Setup for detailed steps.

Platform setup

macOS supports developing Flutter apps for both iOS and Android. Complete at least one of the two platform setup steps now, to be able to build and run your first Flutter app.

iOS setup

Install Xcode

To develop Flutter apps for iOS, you need a Mac with Xcode 7.2 or newer:

  1. Install Xcode 7.2 or newer (via web download or the Mac App Store).
  2. Configure the Xcode command-line tools to use the newly-installed version of Xcode by running sudo xcode-select --switch /Applications/Xcode.app/Contents/Developer from the command line.

    This is the correct path for most cases, when you want to use the latest version of Xcode. If you need to use a different version, specify that path instead.

  3. Make sure the Xcode license agreement is signed by either opening Xcode once and confirming or running sudo xcodebuild -license from the command line.

With Xcode, you’ll be able to run Flutter apps on an iOS device or on the simulator.

Set up the iOS simulator

To prepare to run and test your Flutter app on the iOS simulator, follow these steps:

  1. On your Mac, find the Simulator via Spotlight or by using the following command:

     $ open -a Simulator
    
  2. Make sure your simulator is using a 64-bit device (iPhone 5s or later) by checking the settings in the simulator’s Hardware > Device menu.
  3. Depending on your development machine’s screen size, simulated high-screen-density iOS devices may overflow your screen. Set the device scale under the Window > Scale menu in the simulator.
  4. Start your app by running flutter run.

Deploy to iOS devices

To deploy your Flutter app to a physical iOS device, you’ll need some additional tools, an account, and a profile:

  1. Install homebrew.
  2. Open the terminal and run these commands to install the tools for deploying Flutter apps to iOS devices.

    $ brew update
    $ brew install --HEAD libimobiledevice
    $ brew install ideviceinstaller ios-deploy
    $ brew install cocoapods
    

    If any of these commands fails with an error, run brew doctor and follow the instructions for resolving the issue.

  3. Follow the steps defined by Apple to configure Xcode with your Apple Developer account and enable deploying with provisioning profiles. To learn how to set up your profile, see Apple’s official documentation.
  4. Select your Development Team for the Flutter project.
    1. Open the default Xcode workspace in your project under ios/Runner.xcworkspace.
    2. Select the Runner project in the left navigation panel.
    3. In the Target Settings page, make sure your Development Team is selected under General > Signing > Team.
  5. Start your app by running flutter run.

Android setup

Install Android Studio

To develop Flutter apps for Android, you can use a Mac, Windows, or Linux (64-bit) machine.

Flutter requires Android Studio to be installed and configured:

  1. Download and install Android Studio.

  2. Start Android Studio, and go through the ‘Android Studio Setup Wizard’. This will install the latest Android SDK, Android SDK Platform-Tools, and Android SDK Build-Tools, which are required by Flutter when developing for Android.

Set up your Android device

To prepare to run and test your Flutter app on an Android device, you’ll need an Android device running Android 4.1 (API level 16) or higher.

  1. Enable developer mode on your device by visiting Settings>About phone and tapping the Build number line seven times.
  2. In Settings>Developer options, enable USB debugging.
  3. Using a USB cable, plug your phone into your computer. If prompted on your device, authorize your computer to access your device.
  4. In the terminal, run the flutter devices command to verify that Flutter recognizes your connected Android device.
  5. Start your app by running flutter run.

By default, Flutter uses the version of the Android SDK where your adb tool is based. If you want Flutter to use a different installation of the Android SDK, you must set the ANDROID_HOME environment variable to that installation directory.

Set up the Android emulator

To prepare to run and test your Flutter app on the Android emulator, follow these steps:

  1. Enable VM acceleration on your machine.
  2. Launch Android Studio>Tools>Android>AVD Manager and select Create Virtual Device.
  3. Choose a device definition and select Next.
  4. Select one or more system images for the Android versions you want to emulate, and select Next. An x86 or x86_64 image is recommended.
  5. Under Emulated Performance, select Hardware - GLES 2.0 to enable hardware acceleration.
  6. Verify the AVD configuration is correct, and select Finish.

    For details on the above steps, see Managing AVDs.

  7. In Android Virtual Device Manager, click Run in the toolbar. The emulator starts up and displays the default canvas for your selected OS version and device.
  8. Start your app by running flutter run. The connected device name is Android SDK built for <platform>, where platform is the chip family, such as x86.

Next steps

Now, follow our Getting Started guide to run your first Flutter app on iOS or Android.