I've had the same error when I tried to open a solution which required VB.NET, despite everything (to my knowledge) being C#.
Open the project. Csproj file with another editor, delete whatever you found between.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.