'Cannot add plain C# file when project SDK is Microsoft.NET.Sdk.Web

I have a project that started out as a console application (it still is), but where I added ASP.NET Core so I could also use the Kestrel web server to host a simple UI. To get that to work, I changed the .csproj file to use the Microsoft.NET.Sdk.Web SDK:

<Project Sdk="Microsoft.NET.Sdk.Web">
...
</Project>

This makes everything work fine (if using Microsoft.NET.Sdk it cannot find the AspNetCore namespace), but when I want to add a plain and simple C# file, that template is not available when I do RMB -> Add New Item on the project.

I can easily add C# files by copying or creating an empty file and adding existing item, but because that option is not available from Visual Studio, I am getting the feeling I am doing something wrong.

c++sharpvisual-studio


Solution 1:[1]

It seems like the ASP.NET workload is installed on your computer.

  • Run the Visual Studio installer
  • Modify the installation
  • Select ASP.NET and web development

Sources

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Source: Stack Overflow

Solution Source
Solution 1 Hemant

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