Unity incompatible with windows store?

I’m trying to port my game to Windows Store. I’m following the pdf what unity team wrote (you can find it here: PC Game Development | Unity (the “Getting Started on Windows Storw”).

I successfuly builded the project in unity, and now I’m trying to open it with Visual Studio 2013 Express to compile.
But when I want to open the project file VS throw me an error:

This version of Visual Studio is unable to open the following projects. The project types may not be installed or this version of Visual Studio may not support them. 
For more information on enabling these project types or otherwise migrating your assets, please see the details in the "Migration Report" displayed after clicking OK.
	 - MadWizard, "E:\Mad Wizard Win8\MadWizard\MadWizard.csproj"
	 - Assembly-CSharp-metro-vs2012, "E:\Mad Wizard\Assembly-CSharp-metro-vs2012.csproj"

	 - Assembly-CSharp-firstpass-metro-vs2012, "E:\Mad Wizard\Assembly-CSharp-firstpass-metro-vs2012.csproj"    

No changes required
These projects can be opened in Visual Studio 2013, Visual Studio 2012, and Visual Studio 2010 SP1 without changing them.
	 - MadWizard, "E:\Mad Wizard Win8\MadWizard.sln"

Cant figure it out, how could I solve this issue. Anyone here did run into this problem before?

Well, I downloaded Visual Studio 2012 Express, and that opened the project perfect. This is one kind of solution I think…