Mysterious WPF exception: 'PresentationFramework.Eren Vista'

Question

All of the sudden I am getting this mysterious FileNotFoundException exception inside my WPF project. It occurs right in InitializeComponent of my Window constructor:

Could not load file or assembly 'PresentationFramework.Eren Vista, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' or one of its dependencies. The system cannot find the file specified.

I goggled for PresentationFramework.Eren Vista but I could not find any information on it. Do any of you have any idea what the hell this is?

Update: This appears to be a theme (like PresentationFramework.Aero, PresentationFramework.Classic, PresentationFramework.Luna, PresentationFramework.Royal), but I am not referencing this theme anywhere in my application.

Answer 1

I still don't know what the cause of this exception is, but I solved it by creating a new solution and adding all the same projects. WTF?