Error NETSDK1073: The FrameworkReference 'Microsoft.WindowsDesktop.App.WPF' was not recognized (NETSDK1073)

Hello all,

I’m getting “Error NETSDK1073: The FrameworkReference ‘Microsoft.WindowsDesktop.App.WPF’ was not recognized (NETSDK1073)” while trying to run my test project. Mine is a Xamarin.Forms app which builds and deploys successfully in devices. But the issue I am facing is with the .Net Core app 3.1 unit test project. One suggestion that I came across is regarding Rg.Plugins.Popup. My solution structure is: NaySayApp NaySayApp.Android NaySayApp.iOS NaySayApp.Test Except the test project, others has reference to the above mentioned plugin package. Tried to workaround the issue with PrivateAssets/ExcludeAssets but no luck so far.

The same project works fine in my windows Visual Studio, but fails in MAC.

VS Details are as follows:

=== Visual Studio Community 2019 for Mac ===

Version 8.7.1 (build 15)
Installation UUID: 151a6da6-b82d-4da3-ad54-29cf873ddcb4
	GTK+ 2.24.23 (Raleigh theme)
	Xamarin.Mac 6.18.0.23 (d16-6 / 088c73638)

	Package version: 612000090

=== Mono Framework MDK ===

Runtime:
	Mono 6.12.0.90 (2020-02/d3daacdaa80) (64-bit)
	Package version: 612000090

=== Roslyn (Language Service) ===

3.7.0-6.20371.12+917b9dfae12e3b6cb266a3c062fb20a1e9d5fb06

=== NuGet ===

Version: 5.7.0.6702

=== .NET Core SDK ===

SDK: /usr/local/share/dotnet/sdk/3.1.302/Sdks
SDK Version: 3.1.302
MSBuild SDKs: /Library/Frameworks/Mono.framework/Versions/6.12.0/lib/mono/msbuild/Current/bin/Sdks

=== .NET Core Runtime ===

Runtime: /usr/local/share/dotnet/dotnet
Runtime Versions:
	3.1.6
	2.1.20

=== Xamarin.Profiler ===

Version: 1.6.15.68
Location: /Applications/Xamarin Profiler.app/Contents/MacOS/Xamarin Profiler

=== Updater ===

Version: 11

=== Apple Developer Tools ===

Xcode 11.6 (16141)
Build 11E708

=== Xamarin.Mac ===

Xamarin.Mac not installed. Can't find /Library/Frameworks/Xamarin.Mac.framework/Versions/Current/Version.

=== Xamarin.iOS ===

Version: 13.20.2.2 (Visual Studio Community)
Hash: 817b6f72a
Branch: d16-7
Build date: 2020-07-18 18:45:00-0400

=== Xamarin Designer ===

Version: 16.7.0.492
Hash: f5afe667d
Branch: remotes/origin/d16-7-vsmac
Build date: 2020-07-10 18:42:54 UTC

=== Xamarin.Android ===

Version: 11.0.0.3 (Visual Studio Community)
Commit: xamarin-android/d16-7/aca845b
Android SDK: /Users/user/Library/Developer/Xamarin/android-sdk-macosx
	Supported Android versions:
		8.1 (API level 27)

SDK Tools Version: 26.1.1
SDK Platform Tools Version: 30.0.4
SDK Build Tools Version: 29.0.2

Build Information: 
Mono: 83105ba
Java.Interop: xamarin/java.interop/d16-7@1f3388a
ProGuard: Guardsquare/proguard/proguard6.2.2@ebe9000
SQLite: xamarin/sqlite/3.32.1@1a3276b
Xamarin.Android Tools: xamarin/xamarin-android-tools/d16-7@017078f

=== Microsoft OpenJDK for Mobile ===

Java SDK: /Users/user/Library/Developer/Xamarin/jdk/microsoft_dist_openjdk_1.8.0.25
1.8.0-25
Android Designer EPL code available here:
https://github.com/xamarin/AndroidDesigner.EPL

=== Android SDK Manager ===

Version: 16.7.0.13
Hash: 8380518
Branch: remotes/origin/dev/jmt/d16-7readconfig~2
Build date: 2020-07-23 22:38:02 UTC

=== Android Device Manager ===

Version: 16.7.0.18
Hash: 4b44bc1
Branch: remotes/origin/d16-7
Build date: 2020-07-23 22:38:26 UTC

=== Build Information ===

Release ID: 807010015
Git revision: b2b8f289ffca8f28c585e9137d193c92462cbf14
Build date: 2020-08-07 10:38:31-04
Build branch: release-8.7
Xamarin extensions: b2b8f289ffca8f28c585e9137d193c92462cbf14

=== Operating System ===

Mac OS X 10.15.6
Darwin 19.6.0 Darwin Kernel Version 19.6.0
    Thu Jun 18 20:49:00 PDT 2020
    root:xnu-6153.141.1~1/RELEASE_X86_64 x86_64

[BamButz]

<GenerateErrorForMissingTargetingPacks>false</GenerateErrorForMissingTargetingPacks>

As a temporary workaround, you could add this to your project file.

[Remonell]

Workaround is not working. When will this get fixed? Any other ideas on how to solve this?