CODE EXAMPLE FOR SHELL

Failed to install the app. Make sure you have the Android development environment set up: https://reactnative.dev/docs/environment-setup.

In my case I uninstalled the Node js and deleted Choclaty folder from C:
and  restarted the computer and then installed Node JS and Choclaty according to React Native official web
and created a new React_Natvie_CLI Project and new Project starts successfully