FAIL  __tests__\index.android.js
  ? Test suite failed to run

    E:/react-native/react-native-contacts-test-master/__tests__/index.android.js
: Unexpected token (10:4)
         8 | it('renders correctly', () => {
         9 |   const tree = renderer.create(
      > 10 |     <Index />
           |     ^
        11 |   );
        12 | });
        13 |

ReactNativeContacts is not abstract and does not override abstract method createJSModules() in ReactPackage
public class ReactNativeContacts implements ReactPackage {
       ^
1 error
:react-native-contacts:compileReleaseJavaWithJavac FAILED

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':react-native-contacts:compileReleaseJavaWithJavac'.
> Compilation failed; see the compiler error output for details.

* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output.

BUILD FAILED

Total time: 8.419 secs
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

(node:5264) UnhandledPromiseRejectionWarning: Unhandled promise rejection (rejection id: 2): TypeError: Cannot read property 'message' of undefined