SolvedPropertyChanged PropertyChanged.Fody not working in VB.NET in VS2017

Hate to ask this, but I have a legacy app built in VB.net where I'm trying to add PropertyChanged.Fody. I'm getting this error at compile time: Fody: Could not find 'System.Object'. I built a bare-bones console app in vb.net and am getting the same error. However, when I build a barebones console app in C#, the project builds with errors from Fody. Given the fact it works in a C# app, I'm confident it's not a config issue in my environment.

try adding the following to the vbproj

    <Reference Include="mscorlib" />
    <Reference Include="Microsoft.VisualBasic" />