iOS: Fatal error: Unexpectedly found nil while unwrapping an Optional value: file Pods/AWSMobileClient/AWSAuthSDK/Sources/AWSMobileClient/AWSMobileClientExtensions.swift, line 211 about amplify-flutter HOT 3 CLOSED

Issue was. we had a third party flutter cognito plugin installed. removing it resolved the issue

from amplify-flutter.

I get this same error in iOS and only have these deps:

dependencies:
  flutter:
    sdk: flutter

  amplify_core: '<1.0.0'
  amplify_auth_cognito: '<1.0.0'
  amplify_analytics_pinpoint: '<1.0.0'

  cupertino_icons: ^0.1.3

dev_dependencies:
  flutter_test:
    sdk: flutter

This is the stock todo-app, but with the addition of sign-in code:

SignInResult res = await Amplify.Auth.signIn(
  username: 'myusername',
  password: 'mysupersecurepassword',
);

Any ideas?

from amplify-flutter.

Have you tried running

pub get
flutter clean
flutter run

this usually solve dependency issues if your pubspec is correct

from amplify-flutter.