My app.config was giving me several messages related to \"usersettings schema not found\", so I deleted it with the intention of building it from scratch, but I was not succ
For anyone visiting in the future...
Delete the app.config file in your solution explorer. Right click the project and select add, add new item. Find "Application Configuration File" in the list and add it. It will be empty.
To generate the contents based on your settings (which should still be in tact): edit a setting (make a space or something) and save. Then go look at your new app.config file. It will be re-built!
And Package Manager Console, run this:
Get-Project –All | Add-BindingRedirect
https://weblog.west-wind.com/posts/2014/nov/29/updating-assembly-redirects-with-nuget