WPF Type initialization Exception in C#

Question

I have someone else\'s WPF-based .NET 3.5 app that I\'m attempting to update to .NET 4.5. The code ran fine under .NET 3.5, and I\'m running Visual Studio 2013 Express on Wi

Answer 1

Late to the party, but found this reason in my case. I had added a key-value pair with appSettings in app.config as in

before . Upon digging in the internet, I came to know that, had to be at the top of the root, soon after and rest of the orders are irrelevant. Moving appSettings below helped me fix this issue.