Fody is only supported on MSBuild 16 and above. Current version: 15

Question

Visual Studio 2017 let me know there was an upgrade to Fody version 5 this morning. I accepted and did a NuGet package update of both Fody and PropertyChanged.Fody.

Now

Answer 1

Upgrade to Visual Studio 2019 https://visualstudio.microsoft.com/downloads/