This came up as a result of attempting to upgrade our test projects from .NET Core 3.1 to .Net 6 in our solution that includes a Xamarin iOS app. It happens on the macOS-11 build agent in azure dev ops and also on my development mac running Visual Studio for Mac version 17.4(build 2406). Is it possible to upgrade .net core 3.1 NUnit projects to .NET 6when there's a xamarin iOS project in the solution? 266361-buildoutput.txt Repro steps Open visual studio for mac, click new Under Web and Console in the left pane, click Tests Click NUnit Test Project, click continue Select .NET 6.0, click continue Give the test project a project name, click create Clean and Rebuild the solution, build succeeds Add a new project to the solution Under iOS select App, click continue Give the app a name, click continue On the next screen leave the defaults, click create Clean solution, fails error NETSDK1005: Assets file '/Users/robertc/Projects/TestProject/TestProject/obj/project.assets.json' doesn't have a target for '.NETFramework,Version=v6.0'. Ensure that restore has run and that you have included 'net60' in the TargetFrameworks for your project. I'll include the sample solution and also the build output.

Compile error when adding Xamarin iOS app to solution with .NET 6 NUnit test project

Bob 6

This came up as a result of attempting to upgrade our test projects from .NET Core 3.1 to .Net 6 in our solution that includes a Xamarin iOS app. It happens on the macOS-11 build agent in azure dev ops and also on my development mac running Visual Studio for Mac version 17.4(build 2406). Is it possible to upgrade .net core 3.1 NUnit projects to .NET 6when there's a xamarin iOS project in the solution?266361-buildoutput.txt

Repro steps

Open visual studio for mac, click new
Under Web and Console in the left pane, click Tests
Click NUnit Test Project, click continue
Select .NET 6.0, click continue
Give the test project a project name, click create
Clean and Rebuild the solution, build succeeds
Add a new project to the solution
Under iOS select App, click continue
Give the app a name, click continue
On the next screen leave the defaults, click create
Clean solution, fails

error NETSDK1005: Assets file '/Users/robertc/Projects/TestProject/TestProject/obj/project.assets.json' doesn't have a target for '.NETFramework,Version=v6.0'. Ensure that restore has run and that you have included 'net60' in the TargetFrameworks for your project.

I'll include the sample solution and also the build output.

Tianyu Sun-MSFT 31,246 Reputation points Microsoft Vendor

2022-12-02T13:53:11.14+00:00

Hello @Bob ,

Thanks for sharing the repro steps.

First, I think you need to confirm whether, for NUnit, it is possible(without any error) to be upgraded from .NET Core 3.1 to .NET 6. I believe it is supported, but I suggest you double confirm this by submitting a ticket on GitHub – Nunit.

In case this is a potential issue, could you please submit a ticket and attach related output log file and the sample solution on our Developer Community - Visual Studio for Mac/Developer Community - .NET for further investigate?

Sincerely,
Tianyu
Bob 6 Reputation points

2022-12-02T13:58:46.747+00:00

Yes I can submit a ticket over there as well. The NUnit test project does work on it's own as .NET 6. It's only when you add the xamarin.ios app that it starts having issues, which means we can't migrate our test projects from NET Core 3.1(which loses support in a few days) to .NET 6.

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Compile error when adding Xamarin iOS app to solution with .NET 6 NUnit test project

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