MissingPluginException - Not able to reach Firestore.

[al4nnw]

I was trying to build a windows version of my project following this guide to initialize Firebase. But when I try to get a document from Firestore, I get the following error message:

MissingPluginException (MissingPluginException(No implementation found for method DocumentReference#get on channel plugins.flutter.io/firebase_firestore))

I've tried:

• flutter clean then flutter pub get.
• Using DefaultFirebaseOptions.web instead of DefaultFirebaseOptions.currentPlatform.

Firebase dependencies in pubspec.yaml

• firebase_core: "^1.9.0"

• firebase_core_desktop: ^0.1.1-dev.0

• firebase_auth: ^3.1.5

• firebase_auth_desktop: ^0.1.1-dev.0

• cloud_firestore: ^3.1.7

flutter doctor -v

[√] Flutter (Channel stable, 2.8.1, on Microsoft Windows [versão 10.0.19042.1466], locale pt-BR)
    • Flutter version 2.8.1 at C:\flutter
    • Upstream repository https://github.com/flutter/flutter.git
    • Framework revision 77d935af4d (6 weeks ago), 2021-12-16 08:37:33 -0800
    • Engine revision 890a5fca2e
    • Dart version 2.15.1
[√] Android toolchain - develop for Android devices (Android SDK version 30.0.3)

• Android SDK at C:\Users\Alan\AppData\Local\Android\sdk

• Platform android-31, build-tools 30.0.3

• Java binary at: C:\Program Files\Android\Android Studio\jre\bin\java

• Java version OpenJDK Runtime Environment (build 11.0.8+10-b944.6842174)

• All Android licenses accepted.
[√] Chrome - develop for the web

• Chrome at C:\Program Files\Google\Chrome\Application\chrome.exe
[√] Visual Studio - develop for Windows (Visual Studio Community 2019 16.8.5)

• Visual Studio at C:\Program Files (x86)\Microsoft Visual Studio\2019\Community

• Visual Studio Community 2019 version 16.8.31005.135

• Windows 10 SDK version 10.0.18362.0
[√] Android Studio (version 4.2)

• Android Studio at C:\Program Files\Android\Android Studio

• Flutter plugin can be installed from:

https://plugins.jetbrains.com/plugin/9212-flutter

• Dart plugin can be installed from:

https://plugins.jetbrains.com/plugin/6351-dart

• Java version OpenJDK Runtime Environment (build 11.0.8+10-b944.6842174)
[√] VS Code (version 1.63.2)

• VS Code at C:\Users\Alan\AppData\Local\Programs\Microsoft VS Code

• Flutter extension version 3.32.0
[√] Connected device (3 available)

• Windows (desktop) • windows • windows-x64    • Microsoft Windows [versão 10.0.19042.1466]

• Chrome (web)      • chrome  • web-javascript • Google Chrome 97.0.4692.99

• Edge (web)        • edge    • web-javascript • Microsoft Edge 97.0.1072.69

[pr-Mais]

Firestore isn't yet supported, only Auth and Functions.