Upgrading the project to the VS2015 SDK nugets. This allows building the solution in Visual Studio 2015 without having the SDK installed.

Author: hmemcpy

EditorConfig.VisualStudio.sln

@@ -1,7 +1,7 @@
 
 Microsoft Visual Studio Solution File, Format Version 12.00
-# Visual Studio 2013
-VisualStudioVersion = 12.0.31101.0
+# Visual Studio 14
+VisualStudioVersion = 14.0.24720.0
 MinimumVisualStudioVersion = 10.0.40219.1
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "EditorConfig", "Plugin\EditorConfig.csproj", "{FEAAE923-0664-4072-903F-0C833CD43D36}"
 EndProject

EditorConfig.VisualStudio.sln.DotSettings

@@ -1,2 +1,3 @@
 <wpf:ResourceDictionary xml:space="preserve" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:s="clr-namespace:System;assembly=mscorlib" xmlns:ss="urn:shemas-jetbrains-com:settings-storage-xaml" xmlns:wpf="http://schemas.microsoft.com/winfx/2006/xaml/presentation">
-	<s:String x:Key="/Default/CodeStyle/Naming/CSharpNaming/PredefinedNamingRules/=PrivateConstants/@EntryIndexedValue">&lt;Policy Inspect="True" Prefix="" Suffix="" Style="AA_BB" /&gt;</s:String></wpf:ResourceDictionary>
+	<s:String x:Key="/Default/CodeStyle/Naming/CSharpNaming/PredefinedNamingRules/=PrivateConstants/@EntryIndexedValue">&lt;Policy Inspect="True" Prefix="" Suffix="" Style="AA_BB" /&gt;</s:String>
+	<s:String x:Key="/Default/CodeStyle/Naming/CSharpNaming/PredefinedNamingRules/=PrivateInstanceFields/@EntryIndexedValue">&lt;Policy Inspect="True" Prefix="_" Suffix="" Style="aaBb" /&gt;</s:String></wpf:ResourceDictionary>

Plugin/EditorConfig.csproj

@@ -1,29 +1,22 @@
 <?xml version="1.0" encoding="utf-8"?>
-<Project DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003" ToolsVersion="4.0">
-  <PropertyGroup>
-    <MinimumVisualStudioVersion>12.0</MinimumVisualStudioVersion>
-    <VisualStudioVersion Condition="'$(VisualStudioVersion)' == ''">11.0</VisualStudioVersion>
-    <VSToolsPath Condition="'$(VSToolsPath)' == ''">$(MSBuildExtensionsPath32)\Microsoft\VisualStudio\v$(VisualStudioVersion)</VSToolsPath>
-    <FileUpgradeFlags>
-    </FileUpgradeFlags>
-    <UpgradeBackupLocation>
-    </UpgradeBackupLocation>
-    <OldToolsVersion>4.0</OldToolsVersion>
-  </PropertyGroup>
+<Project ToolsVersion="12.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <Import Project="..\packages\Microsoft.VSSDK.BuildTools.14.1.24720\build\Microsoft.VSSDK.BuildTools.props" Condition="Exists('..\packages\Microsoft.VSSDK.BuildTools.14.1.24720\build\Microsoft.VSSDK.BuildTools.props')" />
   <Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props" Condition="Exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props')" />
   <PropertyGroup>
     <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
     <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
     <SchemaVersion>2.0</SchemaVersion>
     <ProjectGuid>{FEAAE923-0664-4072-903F-0C833CD43D36}</ProjectGuid>
-    <ProjectTypeGuids>{82b43b9b-a64c-4715-b499-d71e9ca2bd60};{60dc8134-eba5-43b8-bcc9-bb4bc16c2548};{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}</ProjectTypeGuids>
+    <ProjectTypeGuids>{60dc8134-eba5-43b8-bcc9-bb4bc16c2548};{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}</ProjectTypeGuids>
     <OutputType>Library</OutputType>
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>EditorConfig.VisualStudio</RootNamespace>
     <AssemblyName>EditorConfig</AssemblyName>
     <SignAssembly>True</SignAssembly>
     <AssemblyOriginatorKeyFile>Key.snk</AssemblyOriginatorKeyFile>
     <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
+    <NuGetPackageImportStamp>
+    </NuGetPackageImportStamp>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <DebugSymbols>true</DebugSymbols>
@@ -55,6 +48,7 @@
       <EmbedInteropTypes>True</EmbedInteropTypes>
     </Reference>
     <Reference Include="EnvDTE" />
+    <Reference Include="Microsoft.Build.Framework" />
     <Reference Include="Microsoft.VisualStudio.CoreUtility" />
     <Reference Include="Microsoft.VisualStudio.OLE.Interop" />
     <Reference Include="Microsoft.VisualStudio.Shell.10.0" />
@@ -154,6 +148,7 @@
       <IncludeInVSIX>true</IncludeInVSIX>
     </Content>
   </ItemGroup>
+  <!--
   <ItemGroup>
     <ProjectReference Include="..\EditorConfigItemTemplate\EditorConfigItemTemplate.csproj">
       <Project>{C812CBA0-F505-458A-A984-1B6C5B64DFF0}</Project>
@@ -163,11 +158,16 @@
       <IncludeOutputGroupsInVSIX>TemplateProjectOutputGroup%3b</IncludeOutputGroupsInVSIX>
     </ProjectReference>
   </ItemGroup>
-  <PropertyGroup>
-    <UseCodebase>true</UseCodebase>
-  </PropertyGroup>
+  -->
   <Import Project="$(MSBuildBinPath)\Microsoft.CSharp.targets" />
-  <Import Project="$(VSToolsPath)\VSSDK\Microsoft.VsSDK.targets" Condition="'$(VSToolsPath)' != ''" />
+  <Target Name="EnsureNuGetPackageBuildImports" BeforeTargets="PrepareForBuild">
+    <PropertyGroup>
+      <ErrorText>This project references NuGet package(s) that are missing on this computer. Use NuGet Package Restore to download them.  For more information, see http://go.microsoft.com/fwlink/?LinkID=322105. The missing file is {0}.</ErrorText>
+    </PropertyGroup>
+    <Error Condition="!Exists('..\packages\Microsoft.VSSDK.BuildTools.14.1.24720\build\Microsoft.VSSDK.BuildTools.props')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\Microsoft.VSSDK.BuildTools.14.1.24720\build\Microsoft.VSSDK.BuildTools.props'))" />
+    <Error Condition="!Exists('..\packages\Microsoft.VSSDK.BuildTools.14.1.24720\build\Microsoft.VSSDK.BuildTools.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\Microsoft.VSSDK.BuildTools.14.1.24720\build\Microsoft.VSSDK.BuildTools.targets'))" />
+  </Target>
+  <Import Project="..\packages\Microsoft.VSSDK.BuildTools.14.1.24720\build\Microsoft.VSSDK.BuildTools.targets" Condition="Exists('..\packages\Microsoft.VSSDK.BuildTools.14.1.24720\build\Microsoft.VSSDK.BuildTools.targets')" />
   <!-- To modify your build process, add your task inside one of the targets below and uncomment it.
        Other similar extension points exist, see Microsoft.Common.targets.
   <Target Name="BeforeBuild">

Plugin/packages.config

@@ -1,4 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
   <package id="editorconfig" version="0.12.1" targetFramework="net45" />
+  <package id="Microsoft.VSSDK.BuildTools" version="14.1.24720" targetFramework="net45" developmentDependency="true" />
 </packages>