Cannot create Q# Quantum Application in Visual Studio
I'm going to create Q# application for the first time. I installed the "Microsoft Quantum Development Kit" and I have .not core 3.1.301 (the latest) I use VS 2019 Community Edition.
In VS, I see the Q# Application when creating new solution but when I try to create , I get below error:
The project file cannot be opened by the project system, because it is missing some critical imports or the referenced SDK cannot be found.
Detailed Information: The SDK resolver "NuGetSdkResolver" failed to run. Unable to find fallback package folder 'C:\Microsoft\Xamarin\NuGet\'.
C:\Program Files\dotnet\sdk\3.1.301\Sdks\Microsoft.Quantum.Sdk\Sdk not found. Check that a recent enough .NET Core SDK is installed and/or increase the version specified in global.json.
I could not find any solution over the web.
The Quantum.SDK is not distributed with the extension, instead is downloaded the first time you try to build/create the Q# application. Looks like Visual Studio is having problems downloading it using NuGet. I can think of two reasons: 1. You are not connected to the internet, so it can't connect to nuget.org to download the package 2. The error points to a missing "C:\Microsoft\Xamarin\NuGet\", I would suggest creating this folder.