How to update version of Microsoft.NETCore.App SDK in VS 2017

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I have ASP.NET Core API project which was initially developed using VS 2015. I installed VS 2017 and let it convert the project.
Then i goto Project Properties -> Application ->Target framework and change the target framework to .NETCoreApp 1.1.

as soon as i do that i get 2 errors

Error One or more projects are incompatible with .NETCoreApp,Version=v1.0.

Error Project Api is not compatible with netcoreapp1.0 (.NETCoreApp,Version=v1.0). Project Api supports: netcoreapp1.1 (.NETCoreApp,Version=v1.1)

when i checked Dependencies -> SDK -> Microsoft.NETCore.App -> Properties it shows version 1.0.4 and SDK Root to C:\Users\username\.nuget\packages\microsoft.netcore.app\1.0.4

I have already installed Microsoft.NETCore.App SDK version 1.1.2 on my machine.

When i goto Nuget Package Manager to update SDK version, it shows its Autoreferenced and update button is disabled.

How do i update project's SDK's version to 1.1.2?

Also why VS studio reference SDK from C:\Users\username\.nuget\packages\microsoft.netcore.app instead of from C:\Program Files\dotnet\shared\Microsoft.NETCore.App\1.1.2

Update 1

Actually 1.1.2 is not SDK version. As of 7/20/2017 the latest SDK version is 1.0.4 and Runtime version is 1.1.2 On my machine I have C:\Program Files\dotnet\sdk\1.0.4 SDK and C:\Program Files\dotnet\shared\Microsoft.NETCore.App\1.1.2 runtime installed.

So as i mentioned erlier, when i open converted project in VS 2017, I see Dependencies -> SDK ->Microsoft.NETCore.App - Properties version is 1.0.4 and SDK Root is C:\Users\username\.nuget\packages\microsoft.netcore.app\1.0.4

Now I added new project in the same solution, however new project's Dependencies -> SDK ->Microsoft.NETCore.App -> Properties version is 1.1.2 and SDK root C:\Users\username\.nuget\packages\microsoft.netcore.app\1.1.2

I am not sure which is correct here, the SDK version of the converted project or SDK version of the newly added project?

Infact if create a brand new project in VS 2017 i see its Dependencies -> SDK ->Microsoft.NETCore.App -> Properties version is 1.1.2

1.1.2 SDK not even SDK available. Why VS 2017 shows runtime version as SDK version

is this a bug in VS 2017?

coreclr visual-studio-2017 asp.net-core-mvc asp.net-core .net-core
3 Answers

In my case, I had a project using .NET Core 3.1 and I wanted to update to 5.0, which is the latest version at the moment. In the csproj file, I deleted the line preceded by the minus symbol and added the line preceded by the plus symbol, as shown below 1:

<Project Sdk="Microsoft.NET.Sdk.Web">

  <PropertyGroup>
- <TargetFramework>netcoreapp3.1</TargetFramework>
+    <TargetFramework>net5.0</TargetFramework>
  </PropertyGroup>

</Project>

Then, I created a file called global.json whose content was the following:

{
  "sdk": {
    "version": "5.0.103"
  }
}

For this, I used the command: dotnet new globaljson --sdk-version 5.0.103 2

Finally, I compiled and run the application and worked!

user_69340930
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