Phone verification issue about message_app HOT 1 CLOSED

Thankyou! First off I need to remind you that this app was made pre null safety release so the code won't work with the latest flutter version.

Secondly, there could be two reasons why you are getting that error:

1. You didn't setup your own firebase phone auth and added your own google-services.json
2. If you have done the above already, then maybe the issue arises due to the isPhoneNumber method or parsePhoneNo method. Both of these methods were made to only allow Pakistani mobile numbers. Try adjusting their logic for your own numbers. I'm posting the link to these methods.

from message_app.