Installing and Setting up React Native Environment

1. Download and install Android Studio

Android Studio provides the Android SDK and AVD (emulator) required to run and test your React Native apps.

2. Install the AVD and HAXM

Choose Custom installation when running Android Studio for the first time. Make sure the boxes next to all of the following are checked:

  • Android SDK
  • Android SDK Platform
  • Performance (Intel HAXM)
  • Android Virtual Device

Then, click “Next” to install all of these components.

3. Install the Android 6.0 (Marshmallow) SDK

Android Studio installs the most recent Android SDK by default. React Native, however, requires the Android 6.0 (Marshmallow) SDK. To install it, launch the SDK Manager, click on “Configure” in the “Welcome to Android Studio” screen.

The SDK Manager can also be found within the Android Studio “Preferences” menu, under Appearance & Behavior → System Settings → Android SDK. Select “SDK Platforms” from within the SDK Manager, then check the box next to “Show Package Details”. Look for and expand the Android 6.0 (Marshmallow) entry, then make sure the
following items are all checked:

  • Google APIs
  • Intel x86 Atom System Image
  • Intel x86 Atom_64 System Image
  • Google APIs Intel x86 Atom_64 System Image

Next, select “SDK Tools” and check the box next to “Show Package Details” here as well. Look for and expand the “Android SDK Build Tools” entry, then make sure that Android SDK Build-Tools 23.0.1 is selected.

Finally, click “Apply” to download and install the Android SDK and related build tools.

4. Set up the ANDROID_HOME environment variable

The React Native command line interface requires the ANDROID_HOME environment variable to be set up.

Go to Control Panel → System and Security → System → Change settings → Advanced System Settings → Environment variables → New, then enter the path to your Android SDK.

Restart the Command Prompt to apply the new environment variable.
Please make sure you export the correct path for ANDROID_HOME, if you did not install the Android SDK using Android Studio.


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