Running the build of create-react-app on Android's Web View

I want to run the build of a create-react-app in Android's web-view. When I run a simple web app with JavaScript and CSS, it is running fine. But on trying to run a create-react-app I am ending up with an empty screen.

Here are the steps I followed:

1. I used the following command for create-react app:

   npm install -g create-react-app

   create-react-app my-app

2. I created the build file using:

   npm run build

3. I copied and pasted the build folder into my Android project structure under assets directory. The build files in my Android Project Structure

4. My Main Activity code:

   public class MainActivity extends AppCompatActivity {

   @Override
   protected void onCreate(Bundle savedInstanceState) {
       super.onCreate(savedInstanceState);
       setContentView(R.layout.activity_main);
   
       WebView view = (WebView) findViewById(R.id.web_view);
       WebSettings webSettings = view.getSettings();
       webSettings.setJavaScriptEnabled(true);
       view.loadUrl("file:///android_asset/build/index.html");
   }
   

   }

I am ending up with a blank screen on running the android app. What am I doing wrong?