Xunit Namespace Could not be Found in Visual Studio Code

Question

I'm using Visual Studio Code for a .NET Core Project. I have an ASP.NET Core Project for which i want to create a separate unit tests project, i created a sub folder and ran

dotnet new xunit
dotnet restore

When i tried to run it from the cli "dotnet build" "dotnet run" it ran successfully, however in visual studio, it says that it can't find the namespace Xunit

This is very strange because Visual Studio code has worked fine for me so far, it never had problem with dependencies, it only has this problem with Xunit.

Anyone familiar with this issue?

Answer 1

I had the same issue. It was solved by typing "Restart Omnisharp" in the Command Palette.

Answer 2

I tried opening the test project directly with vscode (instead of opening the root project that contains the test project in a sub folder) and now vscode recognizes Xunit.

I then opened the root project with vscode again, added Xunit to the root project's csproj file, ran "dotnet restore" in the root project and now Xunit is recognized in the test project.

The thing is that vscode (or is it Omnisharp? i'm not sure) probably looks only at the root csproj file and ignores any csproj file that happens to be in a sub folder.