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error : NETSDK1061: The project was restored using Microsoft.NETCore.App version 1.0.0, but with current settings, version 2.2.0 would be used instead.

After adding a .NET Core Test project to my solution, the build on the server started to fail. These are the error messages we got:

2019-02-26T13:02:17.1451963Z C:\Build\_work\25\s\Data.Tests\Data.Tests.csproj : warning NU1604: Project dependency Microsoft.NETCore.App does not contain an inclusive lower bound. Include a lower bound in the dependency version to ensure consistent restore results.

2019-02-26T13:02:17.1451963Z C:\Build\_work\25\s\Data.Tests\Data.Tests.csproj : error : NETSDK1061: The project was restored using Microsoft.NETCore.App version 1.0.0, but with current settings, version 2.2.0 would be used instead. To resolve this issue, make sure the same settings are used for restore and for subsequent operations such as build or publish. Typically this issue can occur if the RuntimeIdentifier property is set during build or publish but not during restore. For more information, see https://aka.ms/dotnet-runtime-patch-selection.

The strange thing was that building this project locally worked without any issues.

To fix it, I opened up the Data.Tests.csproj file and explicitly added the RuntimeFrameworkVersion:

<RuntimeFrameworkVersion>2.2.0</RuntimeFrameworkVersion>

Could this be a bug in the .NET Core Test project template?

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