Build failing on Windows 10

[DanilSuits]

PS D:\Documents\source\GildedRose> $PSVersionTable.PSVersion

Major  Minor  Build  Revision
-----  -----  -----  --------
5      1      17134  228

PS D:\Documents\source\GildedRose> .\build.bat
Restoring NuGet packages
All packages listed in packages.config are already installed.
All packages listed in packages.config are already installed.
Atempting to resolve semantic version
Semantic version: 2.0.1
Invoking psake
psake version 4.4.1
Copyright (c) 2010-2014 James Kovacs & Contributors

Executing Clean
Cleaning 'D:\Documents\source\GildedRose\.build\output'
Cleaning 'D:\Documents\source\GildedRose'
Executing Build
Building 'GildedRose' solution

Microsoft (R) Build Engine version 4.7.3056.0
[Microsoft .NET Framework, version 4.0.30319.42000]
Copyright (C) Microsoft Corporation. All rights reserved.

...

TestAssemblyTests.cs(8,21): error CS0012: The type 'System.Attribute' is defined in an assembly that is not referenced. You must add a reference to assembly 'System.Runtime, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a'. [D:
\Documents\source\GildedRose\src\GildedRose.Tests\GildedRose.Tests.csproj]
TestAssemblyTests.cs(7,10): error CS0616: 'Xunit.FactAttribute' is not an attribute class [D:\Documents\source\GildedRose\src\GildedRose.Tests\GildedRose.Tests.csproj]