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The current .NET SDK does not support targeting .NET Core 3.0 | 3.1 | 5.0 | 6.0

I've just downloaded the release version of .NET Core 3.0.100
It was installed alongside older version that I have:

When I try to run dotnet restore for a project that targets .NET Core 3 (<TargetFramework>netcoreapp3.0</TargetFramework>), I get this error

C:\Program Files\dotnet\sdk\2.2.202\Sdks\Microsoft.NET.Sdk\targets\Microsoft.NET.TargetFrameworkInference.targets(137,5): error NETSDK1045: The current .NET SDK does not support targeting .NET Core 3.0.  Either target .NET Core 2.2 or lower, or use a version of the .NET SDK that supports .NET Core 3.0.

I have a global.json file that explicitly states that I need the 3.0.100 SDK

{
  "sdk": {
    "version": "3.0.100"
  }
}

I know that I can edit the MSBuildSDKsPath env variable to point to the 3.0.100 SDK, and it works, but I don't want to do it, I have other projects on my machine that still need to use older versions of .NET Core.

Is there a way to make the dotnet tool use the SDK that's stated in global.json instead of the one in MSBuildSDKsPath?

Edit: I use Visual Studio Code

over 4 years ago · Santiago Trujillo

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Answer 1 · 2022-03-15T21:12:08.993Z

I got this error in Azure DevOps with .NET 6:

error NETSDK1045: The current .NET SDK does not support targeting .NET 6.0. Either target .NET 5.0 or lower, or use a version of the .NET SDK that supports .NET 6.0.

Solved by including the SDK like this:

steps:
- task: UseDotNet@2
  displayName: 'Install .NET 6 SDK'
  inputs:
    version: 6.0.x
    performMultiLevelLookup: true

https://docs.microsoft.com/en-us/azure/devops/pipelines/ecosystems/dotnet-core?view=azure-devops&tabs=dotnetfive#build-environment

Github thread about the issue:

https://github.com/dotnet/core/issues/6907

Answer 2 · 2022-03-15T21:12:09.282Z

You also have to update your visual studio to the minimum supported version:

.NET Core 3.0

minimum visual studio v16.3

.NET Core 3.1

minimum visual studio v16.5

.NET Core 5.0

minimum visual studio v16.6 latest preview

.NET Core 6.0

minimum visual studio v17.0 latest preview

(https://dotnet.microsoft.com/download/dotnet-core/3.0)

(https://dotnet.microsoft.com/download/dotnet-core/3.1)

(https://dotnet.microsoft.com/download/dotnet/5.0)

(https://dotnet.microsoft.com/download/dotnet/6.0)

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