- Get the Flutter SDK
- iOS setup
- Android setup
System requirements
All current Flutter SDK releases, both stable, dev, and master. Docs; Get started. Set up an editor., and then triggering a download of the. FAILURE: Build failed with an exception. What went wrong: Could not determine the dependencies of task ':app:compileDebugJavaWithJavac'. Could not resolve all task dependencies for configuration ':app:debugCompileClasspath'.
To install and run Flutter, your development environment must meet these minimum requirements:
- All current Flutter SDK releases, both stable, dev, and master.
- Install Flutter and get started. Downloads available for Windows, macOS, Linux, and Chrome OS operating systems.
- Operating Systems: macOS (64-bit)
- Disk Space: 700 MB (does not include disk space for IDE/tools).
- Tools: Flutter depends on these command-line tools being available in your environment.
bash
curl
git
2.xmkdir
rm
unzip
which
Get the Flutter SDK
Download the following installation bundle to get the latest stable release of theFlutter SDK:
For other release channels, and older builds, see the SDKarchive page.
Extract the file in the desired location, for example:
Add the
flutter
tool to your path:This command sets your
PATH
variable for the current terminal window only.To permanently add Flutter to your path, see Update yourpath.Optionally, pre-download development binaries:
The
flutter
tool downloads platform-specific development binaries asneeded. For scenarios where pre-downloading these artifacts is preferable(e.g., hermetic build environments, intermittent network availability), iOSand Android binaries can be downloaded ahead of time by running:For additional download options, see
flutter help precache
.
You are now ready to run Flutter commands!
Note: 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 toinstall to complete the setup (for verbose output, add the -v
flag):
This command checks your environment and displays a report to the terminalwindow. The Dart SDK is bundled with Flutter; it is not necessary to installDart separately. Check the output carefully for other software you may need toinstall or further tasks to perform (shown in bold text).
For example:
The following sections describe how to perform these tasks and finish the setupprocess.
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.
Update your path
You can update your PATH variable for the current session only at the commandline, as shown in Get the Flutter SDK. You’ll probably want toupdate this variable permanently, so you can run flutter
commands in any terminal session.
Flutter Mac Os
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 opena new window. For example:
- Determine the directory where you placed the Flutter SDK. You willneed this in Step 3.
- Open (or create)
$HOME/.bash_profile
. The file path and filename might bedifferent on your machine. Add the following line and change
[PATH_TO_FLUTTER_GIT_DIRECTORY]
to bethe path where you cloned Flutter’s git repo:- Run
source $HOME/.bash_profile
to refresh the current window. Verify that the
flutter/bin
directory is now in your PATH by running:
For more details, see this StackExchange question.
Platform setup
MacOS supports developing Flutter apps for both iOS and Android. Complete atleast one of the two platform setup steps now, to be able to build and run yourfirst Flutter app.
iOS setup
Install Xcode
To develop Flutter apps for iOS, you need a Mac with Xcode 9.0 or newer:
- Install Xcode 9.0 or newer (via web download orthe Mac App Store).
Configure the Xcode command-line tools to use the newly-installed version of Xcode byrunning the following 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.
- Make sure the Xcode license agreement is signed by either opening Xcode once and confirming orrunning
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:
On your Mac, find the Simulator via Spotlight or by using the following command:
- Make sure your simulator is using a 64-bit device (iPhone 5s or later) by checking the settingsin the simulator’s Hardware > Device menu.
- Depending on your development machine’s screen size, simulated high-screen-density iOS devicesmay overflow your screen. Set the device scale under the Window > Scale menu in the simulator.
Create and run a simple Flutter app
To create your first Flutter app and test your setup, follow these steps:
Create a new Flutter app by running the following from the command line:
A
my_app
directory is created, containing Flutter’s starter app. Enter this directory:To launch the app in the Simulator, ensure that the Simulator is running and enter:
Deploy to iOS devices
To deploy your Flutter app to a physical iOS device, you’ll need some additional tools and an Apple account. You’ll also need to set up physical device deployment in Xcode.
- Install homebrew.
Ensure that homebrew is up to date:
Install the tools for deploying Flutter apps to iOS devices by running thefollowing commands:
Note: The first two commands above are necessary as a temporary workaround until the next release of libusbmuxd, as explained in libusbmuxd issue #46 and Flutter issue #22595.
If any of these commands fail, run
brew doctor
and follow the instructionsto resolve any issues.Follow the Xcode signing flow to provision your project:
- Open the default Xcode workspace in your project by running
openios/Runner.xcworkspace
in a terminal window from your Flutter projectdirectory. - In Xcode, select the
Runner
project in the left navigation panel. In the
Runner
target settings page, make sure your Development Team isselected under General > Signing > Team. When you select a team,Xcode creates and downloads a Development Certificate, registers yourdevice with your account, and creates and downloads a provisioningprofile (if needed).To start your first iOS development project, you may need to sign intoXcode with your Apple ID. Development and testing is supported for any Apple ID. Enrolling in theApple Developer Program is required to distribute your app to the AppStore. For details about membership types, seeChoosing a Membership.
The first time you use an attached physical device for iOSdevelopment, you will need to trust both your Mac and the DevelopmentCertificate on that device. Select
Trust
in the dialog prompt whenfirst connecting the iOS device to your Mac.Then, go to the Settings app on the iOS device, select General >Device Management and trust your Certificate.
If automatic signing fails in Xcode, verify that the project’sGeneral > Identity > Bundle Identifier value is unique.
- Open the default Xcode workspace in your project by running
- Start your app by running
flutter run
.
Download Flutter For Mac
Android setup
Note: Flutter relies on a full installation of Android Studio to supply its Android platform dependencies. However, you can write your Flutter apps in a number of editors; a later step will discuss that.
Install Android Studio
- Download and install Android Studio.
- Start Android Studio, and go through the ‘Android Studio Setup Wizard’. Thisinstalls the latest Android SDK, Android SDK Platform-Tools, and Android SDKBuild-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 anAndroid device running Android 4.1 (API level 16) or higher.
- Enable Developer options and USB debugging on your device. Detailed instructionsare available in the Android documentation.
- Windows-only: Install the Google USB Driver
- Using a USB cable, plug your phone into your computer. If prompted on yourdevice, authorize your computer to access your device.
- In the terminal, run the
flutter devices
command to verify that Flutter recognizes yourconnected Android device.
By default, Flutter uses the version of the Android SDK where your adb
tool is based. Ifyou want Flutter to use a different installation of the Android SDK, you must set theANDROID_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:
- Enable VM acceleration on your machine.
- Launch Android Studio > Tools > Android > AVD Manager and selectCreate Virtual Device. (The Android submenu is only presentwhen inside an Android project.)
- Choose a device definition and select Next.
- 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.
- Under Emulated Performance, select Hardware - GLES 2.0 to enablehardwareacceleration.
Verify the AVD configuration is correct, and select Finish.
For details on the above steps, see ManagingAVDs.
- In Android Virtual Device Manager, click Run in the toolbar.The emulator starts up and displays the default canvas for your selected OS versionand device.