ModernWpf: Build Error on .NET 5

After upgrading from .NET 5 preview 7 to .NET 5 RC 2 I’m getting this error on project build: Microsoft.NET.Sdk.targets(934, 5): [NETSDK1130] Referencing a Windows Metadata component directly when targeting .NETCoreApp,Version=v5.0 is not supported. Use the C#/WinRT projection tool (https://aka.ms/cswinrt) or a provided projection for this target. To reproduce: Create WPF app using .NET 5, install newest version of ModernWpfUI (I’m getting error on older versions too), run build. Thanks in advance!

About this issue

Original URL
State: closed
Created 4 years ago
Reactions: 2
Comments: 16 (5 by maintainers)

Commits related to this issue

fixes Isssue #187 — committed to workgroupengineering/ModernWpf by workgroupengineering 3 years ago

Most upvoted comments

@rfloresarg just change targetframework to this: net5.0-windows10.0.18362.0

+15

ghost1372 on Nov 13, 2020

The project needs to target net5.0-windows10.0.18362.0 or higher, since this library calls WinRT APIs. You can find related documentation here. The app will still be able to run on older versions of Windows.

Kinnara on Oct 19, 2020

just change targetframework to this: net5.0-windows10.0.18362.0 or newer

Can reproduce, this fixes everything for me. Thanks for the fix! It’s quite important for me to use the non-forked Nuget versions.

MilkyDeveloper on Jan 11, 2021

Thanks, @ShankarBUS @ghost1372 ! I haven’t used OS versions in target framework monikers before, so I misunderstood what it means. I’ll test this on an older OS when I can, but there should be no issues. Here’s a relevant doc for someone who might misunderstand it as I did: https://docs.microsoft.com/en-us/dotnet/standard/frameworks#os-version-in-tfms

skel35 on Dec 23, 2020

I’m using proper target framework name and latest preview. It’s because of that Nuget package.

PiotrekPKP on Oct 18, 2020

Isn’t it possible to swap from WinRT to WinSDK? With net6.0-windows10.0.18362.0 I run into

error NETSDK1095: Optimizing assemblies for performance is not supported for the selected target platform or architecture. Please verify you are using a supported runtime identifier, or set the PublishReadyToRun property to false.

mashbrno on Nov 25, 2021

@skel35,

It’s just the target SDK!

It will work older Windows versions!

Try it out yourself 🙃.

ShankarBUS on Dec 23, 2020

After targeting net5.0-windows10.0.18362.0 as you’ve said earlier throw another error:

Referencing a Windows Metadata component directly when targeting .NETCoreApp,Version=v5.0 is not supported. Use the C#/WinRT projection tool (https://aka.ms/cswinrt) or a provided projection for this target.

Based on this issue stated that

We should update the error message (or perhaps just the link pointed at by https://aka.ms/cswinrt) to make it clear that the fix is to reference the Microsoft.Windows.CsWinRT NuGet package.

and after adding the references, there are some conflict like.

The type ‘Color’ exists in both ‘Microsoft.Windows.SDK.NET, Version=10.0.18362.10, Culture=neutral, PublicKeyToken=31bf3856ad364e35’ and ‘System.Runtime.WindowsRuntime, Version=4.0.14.0, Culture=neutral, PublicKeyToken=b77a5c561934e089’

Edit:

It’s working, I just explicitly referenced Windows.UI.Color (as for my cases)

rasyidf on Nov 12, 2020