Running the command react-native run-android fails with the following output:
Starting JS server...
Building and installing the app on the device (cd android && ./gradlew installDebug...
Could not install the app on the device, read the error above for details.
Make sure you have an Android emulator running or a device connected and have
set up your Android development environment:
https://facebook.github.io/react-native/docs/android-setup.html
The curious thing about this problem is that an emulator is running. adb devices returns
List of devices attached
emulator-5554 device
If these details help, its running in Linux, with the emulator set as Android 6.0 API Level 23, using Google APIs Intel Atom (x86).