Solving "type 'List<Object?>' is not a subtype of type 'PigeonUserDetails?'" Error in Flutter

Introduction:

As Flutter developers, we often encounter type-related errors while working with Firebase and custom models. One such error that recently challenged me was:

type 'List<Object?>' is not a subtype of type 'PigeonUserDetails?' in type cast.

In this article, I'll share how I fixed this issue and offer tips for managing similar errors.

The Problem: This error occurs when there's a mismatch between the expected type and the received data type, often caused by outdated package versions or incorrect data model.

The Fix: After analysing my code, I found no logical errors. The issue was resolved by updating all Firebase packages in my Flutter project. Here's how you can do the same:

1. Update Firebase Packages: Run the following command to update all Firebase-related dependencies:

2. Verify Dependencies: Ensure your pubspec.yaml file lists the latest versions of Firebase packages. For example:

3. Clean and Rebuild Your Project:

4. Test Your Application: Ensure the error is resolved and that the app works as expected.

Lessons Learned:

• Always keep dependencies up-to-date.

• Regularly review release notes for breaking changes or fixes.

• Type errors may not always be code-related; check dependencies and configurations.

Call to Action: If you're stuck on a Flutter issue or need professional assistance with your mobile app development, feel free to connect with me. I specialise in solving complex bugs and delivering robust Flutter solutions. Let’s create something amazing together!