Unable to locate the .NET SDK as specified by global.json, please check that the specified version is installed

user_12332221 0
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trying to start a .NET console application. Would prefer F# but get the same error in C# or VB as well.

Unable to locate the .NET SDK as specified by global.json, please check that the specified version is installed. I get that warning as soon as I create a new application, and get it as an error when I try to build.

This is using the default Hello World templates that come with Visual Studio. I would expect the prebuilt templates that ship with the app to build first time. Using VS 2019 16.8.5.

I have searched Visual Studio project and the source directory and can't find any global.json.

The errors

EDIT: Found the global.json at C:\users\username

{
  "sdk": {
    "version": "3.1.300",
    "rollForward": "latestMinor"
  }
}

Which I'm fairly sure I have the SDK installed for but will double check.

f# vb.net .net c#
3 Answers

In my case my global.json was referring to an SDK I didn't have. Run the below in terminal

dotnet --list-sdks

That will give you the list of all the SDK's available update your global.json file to the version you have

user_4419140

I would advise removing that global.json file instead of just adding latestMajor to it, since it's in a place where it probably shouldn't be. Having one in the root of C:\users\your-name with that value is functionally equivalent to not having it in the first place.

The general purpose of a global.json file is to lock down the SDK version used for a specific codebase. For example, this can be helpful if you're using a CI system that can install a .NET SDK based on a global.json file, so you don't have multiple places to update your toolset over time.

user_14001980

Check rollForward is disabled or not If disabled the make it latestMinor

"rollForward": "latestMinor"

user_74612360
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