Assembly location for Razor SDK Tasks was not specified

Question

My project fails to build on a build server. I recently added a new ASP.Net Core (2.2) MVC project with razor pages. The project and the rest of the solution target the .Net Framework 4.7.2.

In Visual Studio on my dev-machine this works fine, but the build server cannot build it. It shows this error.

C:\Users\tfs-build.nuget\packages\microsoft.aspnetcore.razor.design\2.2.0\build\netstandard2.0\Microsoft.AspNetCore.Razor.Design.CodeGeneration.targets(161):C:\Users\tfs-build.nuget\packages\microsoft.aspnetcore.razor.design\2.2.0\build\netstandard2.0\Microsoft.AspNetCore.Razor.Design.CodeGeneration.targets(161,5): Error : Assembly location for Razor SDK Tasks was not specified. The most likely cause is an older incompatible version of Microsoft.NET.Sdk.Razor, or Microsoft.NET.Sdk.Web used by this project. Please target a newer version of the .NET Core SDK.

I made my coworker install the .Net Core SDK 2.2, since I remembered installing that on the dev-machine to be able to create the project. But this did not help on the buildserver.

What could cause this? Why is the behaviour different from the development environment?

Answer 1

It worked on the build server, after I added this Nuget package:

Microsoft.NET.Sdk.Razor

Since I added the Net.SDK.Razor package, it builds successfully.

I had also added Microsoft.AspNetCore.Razor.Design, but only Microsoft.NET.Sdk.Razor is actually needed.