Firestore is incompatible with firebase_auth issue:

Question

I have the following in pubspec.yaml but for some reason, firebase_auth is incompatible with cloud_firestore. How to resolve this dependency issue?

dependencies:
  flutter:
    sdk: flutter
  firebase_auth: ^1.0.1
  cloud_firestore: "^0.16.0+1"
  provider: ^5.0.0

The error message:

Because cloud_firestore >=0.16.0 <0.17.0-1.0.nullsafety.0 depends on firebase_core_platform_interface ^3.0.1 and firebase_auth 1.0.1 depends on firebase_core_platform_interface ^4.0.0, cloud_firestore >=0.16.0 <0.17.0-1.0.nullsafety.0 is incompatible with firebase_auth 1.0.1.
And because no versions of firebase_auth match >1.0.1 <2.0.0, cloud_firestore >=0.16.0 <0.17.0-1.0.nullsafety.0 is incompatible with firebase_auth ^1.0.1.

Answer 1

You need to add the firebase_core package and update your cloud_firestore to the lastest version:

Before any Firebase services can be used, you must first install the firebase_core plugin, which is responsible for connecting your application to Firebase. Add the plugin to your pubspec.yaml file

https://firebase.flutter.dev/docs/overview

firebase_core: ^1.0.2
firebase_auth: ^1.0.1
cloud_firestore: ^1.0.3