Object reference not set to instance of an object error on Visual Studio 2013

Question

I get this error popup in Visual Studio 2013 Pro version. I get it if I insert something into the .cshtml page while the project starts. I am currently getting it in an MVC 5 project. I'm just wondering if this is a bug for Visual Studio 2013, or I just messed up my Visual Studio. My VS is the genuine version. I also have 2010, 2012 and 2013 Express installed on my machine.

UPDATE:

I found out that this happens when I have Razor syntax in a CSS block.

Answer 1

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Answer 2

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Answer 3

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Answer 4

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