The SDK 'Microsoft.NET.Sdk' specified could not be found.

Couldn’t get the (latest) C# extension to work correctly on one of my machines. The project is a .NET Core 3.0 dotnet new console project with no changes.

Here are the logs: https://gist.github.com/richlander/9931ebb3c3570615439fe0ccf3ae6657

The logs demonstrate the machine env, launch code and then show the O# logs that I saw, rinse and repeat. I tried various suggestions I found @ https://github.com/Microsoft/msbuild/issues/2532

[zeroskyx]

Don’t ask me where I found this, but the following command has fixed the issue for me (probably worth a try):

dotnet nuget locals all -c

I also have added this to my omnisharp.json:

"MsBuild":
{
	"UseLegacySdkResolver": true
}

Gold luck

[alvaromuir]

I found this to be a problem when I installed dotnet via HomeBrew on mac. Uninstalled that, then used the normal installer from https://aka.ms/dotnet-download