Describe the bug

Community Toolkit MVVM Doesn't Support C# Version 8 and Does Only Work with C# Version 9 and Above at the time of writing, In this case there's no proper warning or error output that relates to Community Toolkit MVVM on Compilation

Regression

7.1.2

Reproducible in sample app?

• This bug can be reproduced in the sample app.

Steps to reproduce

1. Create Vanilla UWP Project
2. Install Community Toolkit 8.0 using Nuget
3. Compile the App

Expected behavior

Community Toolkit MVVM Should Have Language Barrier to Prevent the Dependency from Installing on C# version 8 since least version of C# that is supported by Community Toolkit MVVM is C# Version 9 at the time of writing or Community Toolkit MVVM Should Support C# version 8

Screenshots

Visual Studio Version

2022

Visual Studio Build Number

17.3

Nuget packages

Community Toolkit 8.0

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