.NET Core 2.0 missing from my Visual Studio

Question

So I've installed the official .NET Core 2.0 SDK and when I'm in Visual Studio i get heaps of errors and the target framework is not listed :(

It's like .NET Core 2.0 isn't installed.

and here's the .csproj file:

<Project Sdk="Microsoft.NET.Sdk.Web">    <PropertyGroup>     <TargetFramework>netcoreapp2.0</TargetFramework>   </PropertyGroup>    <ItemGroup>     <Folder Include="wwwroot\" />   </ItemGroup>    <ItemGroup>     <PackageReference Include="Microsoft.AspNetCore.All" Version="2.0.0" />   </ItemGroup>  </Project> 

also, dotnet --version returns 2.0.0

so .. is there some install tooling I'm missing?

EDIT/UPDATE:

Here's my system info from VS:

Microsoft Visual Studio Community 2017  Version 15.3.1 VisualStudio.15.Release/15.3.1+26730.8 Microsoft .NET Framework Version 4.7.02046  Installed Version: Community  Visual Basic 2017   00369-60000-00001-AA912 Microsoft Visual Basic 2017  Visual C# 2017   00369-60000-00001-AA912 Microsoft Visual C# 2017  Application Insights Tools for Visual Studio Package   8.8.00712.1 Application Insights Tools for Visual Studio  ASP.NET and Web Tools 2017   15.0.30726.0 ASP.NET and Web Tools 2017  ASP.NET Core Razor Language Services   1.0 Provides languages services for ASP.NET Core Razor.  ASP.NET Template Engine 2017   15.0.30726.0 ASP.NET Template Engine 2017  ASP.NET Web Frameworks and Tools 2017   5.2.50601.0 For additional information, visit https://www.asp.net/  Azure App Service Tools v3.0.0   15.0.30728.0 Azure App Service Tools v3.0.0  ... rest snipped. 

Answer 1

Please make sure you use Visual Studio 2017 Update 3 (version 15.3, 26730.01): Help -> About Microsoft Visual Studio