windows 8.1, won't export out to win8

I just got a windows 8.1 computer. I downloaded the windows SDK from MSDN and got the free 2013 visual studio. When I try to export out the game to windows, I get this error. It will not compile. I can export out to android, windows 7 and such, just to windows 8.

The setting for windows store are as follows (although I have tried different settings).
Type C++
SDK 8.0
dev build: off

I’m sure this is a simple thing. Thanks in advance.

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Internal compiler error. See the console log for more information. output was:Microsoft (R) Visual C# Compiler version 4.0.30319.33440

for Microsoft (R) .NET Framework 4.5
Copyright (C) Microsoft Corporation. All rights reserved.

error CS0518: Predefined type ‘System.Object’ is not defined or imported

Just install Windows SDK 8.0 - Windows SDK and emulator archive | Microsoft Developer

It will fix your problem.