MSBuild does not resolve WindowsBase correctly #8289

EatonZ · 2023-01-04T17:30:09Z

Describe the bug

I am working with third-party components (DevExpress) and their new release based on .NET 6 appears to have exposed a potential bug in MSBuild's assembly resolution logic. There appears to be a versioning conflict between two WindowsBase DLLs in the WindowsDesktop and NETCore SDKs. For further details, please see this public support ticket. In particular, this reply.

The issue applies to both .NET 6 and .NET 7 WindowsDesktop projects.

To Reproduce

Here is a sample project you can build to reproduce. Just build it and look in the Visual Studio build output to see the below lines.

Exceptions (if any)

1>C:\Program Files\Microsoft Visual Studio\2022\Enterprise\MSBuild\Current\Bin\amd64\Microsoft.Common.CurrentVersion.targets(2352,5): warning MSB3277: Found conflicts between different versions of "WindowsBase" that could not be resolved.
1>C:\Program Files\Microsoft Visual Studio\2022\Enterprise\MSBuild\Current\Bin\amd64\Microsoft.Common.CurrentVersion.targets(2352,5): warning MSB3277: There was a conflict between "WindowsBase, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" and "WindowsBase, Version=6.0.2.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35".
1>C:\Program Files\Microsoft Visual Studio\2022\Enterprise\MSBuild\Current\Bin\amd64\Microsoft.Common.CurrentVersion.targets(2352,5): warning MSB3277:     "WindowsBase, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" was chosen because it was primary and "WindowsBase, Version=6.0.2.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" was not.
1>C:\Program Files\Microsoft Visual Studio\2022\Enterprise\MSBuild\Current\Bin\amd64\Microsoft.Common.CurrentVersion.targets(2352,5): warning MSB3277:     References which depend on "WindowsBase, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" [C:\Program Files\dotnet\packs\Microsoft.NETCore.App.Ref\7.0.1\ref\net7.0\WindowsBase.dll].
1>C:\Program Files\Microsoft Visual Studio\2022\Enterprise\MSBuild\Current\Bin\amd64\Microsoft.Common.CurrentVersion.targets(2352,5): warning MSB3277:         C:\Program Files\dotnet\packs\Microsoft.NETCore.App.Ref\7.0.1\ref\net7.0\WindowsBase.dll
1>C:\Program Files\Microsoft Visual Studio\2022\Enterprise\MSBuild\Current\Bin\amd64\Microsoft.Common.CurrentVersion.targets(2352,5): warning MSB3277:           Project file item includes which caused reference "C:\Program Files\dotnet\packs\Microsoft.NETCore.App.Ref\7.0.1\ref\net7.0\WindowsBase.dll".
1>C:\Program Files\Microsoft Visual Studio\2022\Enterprise\MSBuild\Current\Bin\amd64\Microsoft.Common.CurrentVersion.targets(2352,5): warning MSB3277:             C:\Program Files\dotnet\packs\Microsoft.NETCore.App.Ref\7.0.1\ref/net7.0/WindowsBase.dll
1>C:\Program Files\Microsoft Visual Studio\2022\Enterprise\MSBuild\Current\Bin\amd64\Microsoft.Common.CurrentVersion.targets(2352,5): warning MSB3277:     References which depend on "WindowsBase, Version=6.0.2.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" [].
1>C:\Program Files\Microsoft Visual Studio\2022\Enterprise\MSBuild\Current\Bin\amd64\Microsoft.Common.CurrentVersion.targets(2352,5): warning MSB3277:         C:\Users\Eaton\Source\Repos\WinFormsApp1\WinFormsApp1\DevExpress.Data.Desktop.v22.2.dll
1>C:\Program Files\Microsoft Visual Studio\2022\Enterprise\MSBuild\Current\Bin\amd64\Microsoft.Common.CurrentVersion.targets(2352,5): warning MSB3277:           Project file item includes which caused reference "C:\Users\Eaton\Source\Repos\WinFormsApp1\WinFormsApp1\DevExpress.Data.Desktop.v22.2.dll".
1>C:\Program Files\Microsoft Visual Studio\2022\Enterprise\MSBuild\Current\Bin\amd64\Microsoft.Common.CurrentVersion.targets(2352,5): warning MSB3277:             DevExpress.Data.Desktop.v22.2

Further technical details

Include the output of dotnet --info:

.NET SDK:
 Version:   7.0.101
 Commit:    bb24aafa11

Runtime Environment:
 OS Name:     Windows
 OS Version:  10.0.22621
 OS Platform: Windows
 RID:         win10-x64
 Base Path:   C:\Program Files\dotnet\sdk\7.0.101\

Host:
  Version:      7.0.1
  Architecture: x64
  Commit:       97203d38ba

.NET SDKs installed:
  6.0.202 [C:\Program Files\dotnet\sdk]
  7.0.101 [C:\Program Files\dotnet\sdk]

.NET runtimes installed:
  Microsoft.AspNetCore.App 6.0.5 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
  Microsoft.AspNetCore.App 6.0.6 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
  Microsoft.AspNetCore.App 6.0.10 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
  Microsoft.AspNetCore.App 6.0.12 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
  Microsoft.AspNetCore.App 7.0.1 [C:\Program Files\dotnet\shared\Microsoft.AspNetCore.App]
  Microsoft.NETCore.App 5.0.17 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
  Microsoft.NETCore.App 6.0.4 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
  Microsoft.NETCore.App 6.0.5 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
  Microsoft.NETCore.App 6.0.12 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
  Microsoft.NETCore.App 7.0.1 [C:\Program Files\dotnet\shared\Microsoft.NETCore.App]
  Microsoft.WindowsDesktop.App 5.0.17 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
  Microsoft.WindowsDesktop.App 6.0.4 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
  Microsoft.WindowsDesktop.App 6.0.5 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
  Microsoft.WindowsDesktop.App 6.0.12 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]
  Microsoft.WindowsDesktop.App 7.0.1 [C:\Program Files\dotnet\shared\Microsoft.WindowsDesktop.App]

Other architectures found:
  x86   [C:\Program Files (x86)\dotnet]
    registered at [HKLM\SOFTWARE\dotnet\Setup\InstalledVersions\x86\InstallLocation]

Environment variables:
  Not set

global.json file:
  Not found

Learn more:
  https://aka.ms/dotnet/info

Download .NET:
  https://aka.ms/dotnet/download

The IDE (VS / VS Code/ VS4Mac) you're running on, and its version
Visual Studio 2022 Version 17.4.3 (Windows)

The text was updated successfully, but these errors were encountered:

KalleOlaviNiemitalo · 2023-01-27T09:35:44Z

@RobThree I think it would be better to file that as a separate issue because it likely has a different root cause and has to be fixed and tested separately.

RobThree · 2023-01-30T14:24:44Z

@KalleOlaviNiemitalo I figured out it had to do with MySQL.Data 8.0.32 (so, yes, this is unrelated, sorry, my bad).

hyke123 · 2023-04-07T01:30:15Z

Has this issue been resolved? Which version of Visual Studio can I build without encountering these warnings? Thanks.

EatonZ · 2023-04-10T18:46:50Z

@hyke123 It has not been resolved as of the latest VS version (17.5.3).
No one from MS has commented here on the issue yet - still waiting.👀

BrightLight · 2023-04-11T15:34:26Z

Maybe dotnet/sdk would be a better fit for this. There are some issues that sound related, for instance
WindowsBase NETCoreApp vs WindowsDesktopApp
Do not autoreference WindowsBase.dll in Microsoft.NetCore.App

dedale · 2023-09-15T12:53:19Z

To circumvent this error, you may try to look at project.assets.json to help identify if some dependency is bringing in old Windows base version and then update this dependency accordingly. HTH

dedale · 2023-09-15T15:57:36Z

I actually fixed this with

<UseWPF>true</UseWPF>

EatonZ · 2023-09-16T00:28:25Z

@dedale Thanks for the suggestion, but I do not use that file, and my project is WinForms and not WPF.

This issue still happens as of today. Hopefully something will be done for .NET 8?

dedale · 2023-09-16T05:55:18Z

@dedale Thanks for the suggestion, but I do not use that file, and my project is WinForms and not WPF.

This issue still happens as of today. Hopefully something will be done for .NET 8?

My project is WinForms too so I enabled both 🤷‍♂️ . Otherwise you'll see in VS in framework dependencies of your project that WindowsBase is only taken from NetCore.App (in version 4). My finding is that when you also enable UseWPF, NetCore.WindowsApp dependencies also include WindowsBase is version of your tfm i.e. 6 or 7).

dedale · 2023-09-16T05:58:20Z

@EatonZ see dotnet/sdk#10378 (comment) and also https://stackoverflow.com/a/69397047/305023

EatonZ · 2023-09-16T20:35:18Z

@dedale Unfortunately just adding that to my csproj breaks the project:

char8t · 2024-03-08T14:29:49Z

I have the very same issue with the WindowBase Assembly resolution but with a different kind of project (Maui Blazor Hybrid App) and running on .NET 8. Also adding <UseWPF>true</UseWPF> will totally break the project.

warning MSB3277: Es wurden Konflikte zwischen verschiedenen Versionen von "WindowsBase" gefunden, die nicht aufgelöst werden konnten.
warning MSB3277: Konflikt zwischen WindowsBase, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35 und WindowsBase, Version=6.0.2.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35.
warning MSB3277:     WindowsBase, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35 wurde aufgrund der primären Eigenschaft WindowsBase, Version=6.0.2.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35 vorgezogen.
warning MSB3277:     Verweise, die von "WindowsBase, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" abhängig sind [C:\Program Files\dotnet\packs\Microsoft.NETCore.App.Ref\8.0.2\ref\net8.0\WindowsBase.dll].
warning MSB3277:         C:\Program Files\dotnet\packs\Microsoft.NETCore.App.Ref\8.0.2\ref\net8.0\WindowsBase.dll
warning MSB3277:           Elementincludes einer Projektdatei, die den Verweis "C:\Program Files\dotnet\packs\Microsoft.NETCore.App.Ref\8.0.2\ref\net8.0\WindowsBase.dll" verursacht haben.
warning MSB3277:             C:\Program Files\dotnet\packs\Microsoft.NETCore.App.Ref\8.0.2\ref/net8.0/WindowsBase.dll
warning MSB3277:     Verweise, die von „WindowsBase, Version=6.0.2.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35“ [] abhängen oder damit vereint wurden.
warning MSB3277:         C:\Users\<redacted>\.nuget\packages\emgu.cv.wpf\4.8.1.5350\lib\netcoreapp3.1\Emgu.CV.Wpf.dll
warning MSB3277:           Elementincludes einer Projektdatei, die den Verweis "C:\Users\<redacted>\.nuget\packages\emgu.cv.wpf\4.8.1.5350\lib\netcoreapp3.1\Emgu.CV.Wpf.dll" verursacht haben.
warning MSB3277:             C:\Users\<redacted>\.nuget\packages\emgu.cv.wpf\4.8.1.5350\lib\netcoreapp3.1\Emgu.CV.Wpf.dll

bh-sijtnic · 2024-05-10T13:44:42Z

I also face this error in one of my projects. I found that when referencing an assembly that depends on WindowsBase version 6, the conflict happens. I can reproduce this in a very simple project, using both .NET 6 SDK and .NET 8 SDK.

I have no desire to enable UseWPF in this project, as this project has no UI layer.

Interestingly enough, when changing the Reference into a PackageReference, the warning is gone. Even though Visual Studio references the same full path of the dll.

In this particular situation i am not able to use a PackageReference to the file i need, i need to use an assembly reference.

Why does an assembly reference cause WindowsBase 4.0.0.0 to be included?

<Project Sdk="Microsoft.NET.Sdk">

  <PropertyGroup>
    <TargetFramework>net6.0-windows10.0.19041</TargetFramework>
  </PropertyGroup>

  <ItemGroup>
    <Reference Include="C:\Users\username\.nuget\packages\system.reactive\6.0.0\lib\net6.0-windows10.0.19041\System.Reactive.dll" />
  </ItemGroup>

</Project>

Resulting in error

MSB3277	Found conflicts between different versions of "WindowsBase" that could not be resolved.
There was a conflict between "WindowsBase, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" and "WindowsBase, Version=6.0.2.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35".
    "WindowsBase, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" was chosen because it was primary and "WindowsBase, Version=6.0.2.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" was not.
    References which depend on "WindowsBase, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" [C:\Program Files\dotnet\packs\Microsoft.NETCore.App.Ref\6.0.29\ref\net6.0\WindowsBase.dll].
        C:\Program Files\dotnet\packs\Microsoft.NETCore.App.Ref\6.0.29\ref\net6.0\WindowsBase.dll
          Project file item includes which caused reference "C:\Program Files\dotnet\packs\Microsoft.NETCore.App.Ref\6.0.29\ref\net6.0\WindowsBase.dll".
            C:\Program Files\dotnet\packs\Microsoft.NETCore.App.Ref\6.0.29\ref/net6.0/WindowsBase.dll
    References which depend on or have been unified to "WindowsBase, Version=6.0.2.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" [].
        C:\Users\username\.nuget\packages\system.reactive\6.0.0\lib\net6.0-windows10.0.19041\System.Reactive.dll
          Project file item includes which caused reference "C:\Users\username\.nuget\packages\system.reactive\6.0.0\lib\net6.0-windows10.0.19041\System.Reactive.dll".
            C:\Users\username\.nuget\packages\system.reactive\6.0.0\lib\net6.0-windows10.0.19041\System.Reactive.dll	ConsoleApp2  	
C:\Program Files\Microsoft Visual Studio\2022\Enterprise\MSBuild\Current\Bin\amd64\Microsoft.Common.CurrentVersion.targets	2401

unseensenpai · 2024-10-09T11:44:12Z

Still has this issue in .net 8.0.402 sdk.

Any progress should we know?

sefinek · 2024-10-31T22:40:35Z

How to fix this? I have the same issue in .NET 8 😥 (SDK 8.0.403)

dedale · 2024-11-01T07:34:14Z

@unseensenpai @sefinek In obj/project.assets.json, what is bringing in each dependency?

sefinek · 2024-11-01T13:44:01Z

@dedale

obj/project.assets.json (Microsoft.Web.WebView2/1.0.2849.39)

{
  "version": 3,
  "targets": {
    "net8.0-windows7.0": {
      "Microsoft.Web.WebView2/1.0.2849.39": {
        "type": "package",
        "build": {
          "buildTransitive/Microsoft.Web.WebView2.targets": {}
        },
        "runtimeTargets": {
          "runtimes/win-arm64/native/WebView2Loader.dll": {
            "assetType": "native",
            "rid": "win-arm64"
          },
          "runtimes/win-x64/native/WebView2Loader.dll": {
            "assetType": "native",
            "rid": "win-x64"
          },
          "runtimes/win-x86/native/WebView2Loader.dll": {
            "assetType": "native",
            "rid": "win-x86"
          }
        }
      },
      "Newtonsoft.Json/13.0.3": {
        "type": "package",
        "compile": {
          "lib/net6.0/Newtonsoft.Json.dll": {
            "related": ".xml"
          }
        },
        "runtime": {
          "lib/net6.0/Newtonsoft.Json.dll": {
            "related": ".xml"
          }
        }
      }
    }
  },
  "libraries": {
    "Microsoft.Web.WebView2/1.0.2849.39": {
      "sha512": "mWyurCfuOGF2odk+Orflzpk017oBmLy11qiQTXpcc9ZWqhx2SfYDr2izplyxy2bCkWDSXCQpBDhU5u9+mhHlDQ==",
      "type": "package",
      "path": "microsoft.web.webview2/1.0.2849.39",
      "hasTools": true,
      "files": [
        ".nupkg.metadata",
        ".signature.p7s",
        "LICENSE.txt",
        "NOTICE.txt",
        "WebView2.idl",
        "WebView2.tlb",
        "build/Common.targets",
        "build/Microsoft.Web.WebView2.targets",
        "build/WebView2Rules.Project.xml",
        "build/native/Microsoft.Web.WebView2.targets",
        "build/native/arm64/WebView2Loader.dll",
        "build/native/arm64/WebView2Loader.dll.lib",
        "build/native/arm64/WebView2LoaderStatic.lib",
        "build/native/include-winrt/WebView2Interop.h",
        "build/native/include-winrt/WebView2Interop.idl",
        "build/native/include-winrt/WebView2Interop.tlb",
        "build/native/include/WebView2.h",
        "build/native/include/WebView2EnvironmentOptions.h",
        "build/native/x64/WebView2Loader.dll",
        "build/native/x64/WebView2Loader.dll.lib",
        "build/native/x64/WebView2LoaderStatic.lib",
        "build/native/x86/WebView2Loader.dll",
        "build/native/x86/WebView2Loader.dll.lib",
        "build/native/x86/WebView2LoaderStatic.lib",
        "build/wv2winrt.targets",
        "buildTransitive/Microsoft.Web.WebView2.targets",
        "lib/Microsoft.Web.WebView2.Core.winmd",
        "lib/net462/Microsoft.Web.WebView2.Core.dll",
        "lib/net462/Microsoft.Web.WebView2.Core.xml",
        "lib/net462/Microsoft.Web.WebView2.WinForms.dll",
        "lib/net462/Microsoft.Web.WebView2.WinForms.xml",
        "lib/net462/Microsoft.Web.WebView2.Wpf.dll",
        "lib/net462/Microsoft.Web.WebView2.Wpf.xml",
        "lib_manual/net5.0-windows10.0.17763.0/Microsoft.Web.WebView2.Wpf.dll",
        "lib_manual/net5.0-windows10.0.17763.0/Microsoft.Web.WebView2.Wpf.xml",
        "lib_manual/net6.0-windows10.0.17763.0/Microsoft.Web.WebView2.Core.Projection.dll",
        "lib_manual/net8.0-windows10.0.17763.0/Microsoft.Web.WebView2.Core.Projection.dll",
        "lib_manual/netcoreapp3.0/Microsoft.Web.WebView2.Core.dll",
        "lib_manual/netcoreapp3.0/Microsoft.Web.WebView2.Core.xml",
        "lib_manual/netcoreapp3.0/Microsoft.Web.WebView2.WinForms.dll",
        "lib_manual/netcoreapp3.0/Microsoft.Web.WebView2.WinForms.xml",
        "lib_manual/netcoreapp3.0/Microsoft.Web.WebView2.Wpf.dll",
        "lib_manual/netcoreapp3.0/Microsoft.Web.WebView2.Wpf.xml",
        "microsoft.web.webview2.1.0.2849.39.nupkg.sha512",
        "microsoft.web.webview2.nuspec",
        "runtimes/win-arm64/native/WebView2Loader.dll",
        "runtimes/win-arm64/native_uap/Microsoft.Web.WebView2.Core.dll",
        "runtimes/win-x64/native/WebView2Loader.dll",
        "runtimes/win-x64/native_uap/Microsoft.Web.WebView2.Core.dll",
        "runtimes/win-x86/native/WebView2Loader.dll",
        "runtimes/win-x86/native_uap/Microsoft.Web.WebView2.Core.dll",
        "tools/VisualStudioToolsManifest.xml",
        "tools/wv2winrt/Antlr3.Runtime.dll",
        "tools/wv2winrt/Antlr4.StringTemplate.dll",
        "tools/wv2winrt/System.Buffers.dll",
        "tools/wv2winrt/System.CommandLine.DragonFruit.dll",
        "tools/wv2winrt/System.CommandLine.Rendering.dll",
        "tools/wv2winrt/System.CommandLine.dll",
        "tools/wv2winrt/System.Memory.dll",
        "tools/wv2winrt/System.Numerics.Vectors.dll",
        "tools/wv2winrt/System.Runtime.CompilerServices.Unsafe.dll",
        "tools/wv2winrt/codegen_util.dll",
        "tools/wv2winrt/concrt140_app.dll",
        "tools/wv2winrt/cs/System.CommandLine.resources.dll",
        "tools/wv2winrt/de/System.CommandLine.resources.dll",
        "tools/wv2winrt/es/System.CommandLine.resources.dll",
        "tools/wv2winrt/fr/System.CommandLine.resources.dll",
        "tools/wv2winrt/it/System.CommandLine.resources.dll",
        "tools/wv2winrt/ja/System.CommandLine.resources.dll",
        "tools/wv2winrt/ko/System.CommandLine.resources.dll",
        "tools/wv2winrt/msvcp140_1_app.dll",
        "tools/wv2winrt/msvcp140_2_app.dll",
        "tools/wv2winrt/msvcp140_app.dll",
        "tools/wv2winrt/pl/System.CommandLine.resources.dll",
        "tools/wv2winrt/pt-BR/System.CommandLine.resources.dll",
        "tools/wv2winrt/ru/System.CommandLine.resources.dll",
        "tools/wv2winrt/tr/System.CommandLine.resources.dll",
        "tools/wv2winrt/type_hierarchy.dll",
        "tools/wv2winrt/vcamp140_app.dll",
        "tools/wv2winrt/vccorlib140_app.dll",
        "tools/wv2winrt/vcomp140_app.dll",
        "tools/wv2winrt/vcruntime140_app.dll",
        "tools/wv2winrt/winrt_winmd.dll",
        "tools/wv2winrt/winrt_winmd.winmd",
        "tools/wv2winrt/wv2winrt.exe",
        "tools/wv2winrt/wv2winrt.exe.config",
        "tools/wv2winrt/wv2winrt.xml",
        "tools/wv2winrt/zh-Hans/System.CommandLine.resources.dll",
        "tools/wv2winrt/zh-Hant/System.CommandLine.resources.dll"
      ]
    },
    "Newtonsoft.Json/13.0.3": {
      "sha512": "HrC5BXdl00IP9zeV+0Z848QWPAoCr9P3bDEZguI+gkLcBKAOxix/tLEAAHC+UvDNPv4a2d18lOReHMOagPa+zQ==",
      "type": "package",
      "path": "newtonsoft.json/13.0.3",
      "files": [
        ".nupkg.metadata",
        ".signature.p7s",
        "LICENSE.md",
        "README.md",
        "lib/net20/Newtonsoft.Json.dll",
        "lib/net20/Newtonsoft.Json.xml",
        "lib/net35/Newtonsoft.Json.dll",
        "lib/net35/Newtonsoft.Json.xml",
        "lib/net40/Newtonsoft.Json.dll",
        "lib/net40/Newtonsoft.Json.xml",
        "lib/net45/Newtonsoft.Json.dll",
        "lib/net45/Newtonsoft.Json.xml",
        "lib/net6.0/Newtonsoft.Json.dll",
        "lib/net6.0/Newtonsoft.Json.xml",
        "lib/netstandard1.0/Newtonsoft.Json.dll",
        "lib/netstandard1.0/Newtonsoft.Json.xml",
        "lib/netstandard1.3/Newtonsoft.Json.dll",
        "lib/netstandard1.3/Newtonsoft.Json.xml",
        "lib/netstandard2.0/Newtonsoft.Json.dll",
        "lib/netstandard2.0/Newtonsoft.Json.xml",
        "newtonsoft.json.13.0.3.nupkg.sha512",
        "newtonsoft.json.nuspec",
        "packageIcon.png"
      ]
    }
  },
  "projectFileDependencyGroups": {
    "net8.0-windows7.0": [
      "Microsoft.Web.WebView2 >= 1.0.2849.39",
      "Newtonsoft.Json >= 13.0.3"
    ]
  },
  "packageFolders": {
    "C:\\Users\\Sefinek\\.nuget\\packages\\": {},
    "C:\\Program Files (x86)\\Microsoft Visual Studio\\Shared\\NuGetPackages": {}
  },
  "project": {
    "version": "1.0.3",
    "restore": {
      "projectUniqueName": "D:\\Projects\\apps\\Sefinek-Blocklists-App\\SefinekBlocklists\\Sefinek Blocklists App.csproj",
      "projectName": "Sefinek Blocklists",
      "projectPath": "D:\\Projects\\apps\\Sefinek-Blocklists-App\\SefinekBlocklists\\Sefinek Blocklists App.csproj",
      "packagesPath": "C:\\Users\\Sefinek\\.nuget\\packages\\",
      "outputPath": "D:\\Projects\\apps\\Sefinek-Blocklists-App\\SefinekBlocklists\\obj\\",
      "projectStyle": "PackageReference",
      "fallbackFolders": [
        "C:\\Program Files (x86)\\Microsoft Visual Studio\\Shared\\NuGetPackages"
      ],
      "configFilePaths": [
        "C:\\Users\\Sefinek\\AppData\\Roaming\\NuGet\\NuGet.Config",
        "C:\\Program Files (x86)\\NuGet\\Config\\Microsoft.VisualStudio.FallbackLocation.config",
        "C:\\Program Files (x86)\\NuGet\\Config\\Microsoft.VisualStudio.Offline.config"
      ],
      "originalTargetFrameworks": [
        "net8.0-windows"
      ],
      "sources": {
        "C:\\Program Files (x86)\\Microsoft SDKs\\NuGetPackages\\": {},
        "https://api.nuget.org/v3/index.json": {}
      },
      "frameworks": {
        "net8.0-windows7.0": {
          "targetAlias": "net8.0-windows",
          "projectReferences": {}
        }
      },
      "warningProperties": {
        "warnAsError": [
          "NU1605"
        ]
      },
      "restoreAuditProperties": {
        "enableAudit": "true",
        "auditLevel": "low",
        "auditMode": "direct"
      }
    },
    "frameworks": {
      "net8.0-windows7.0": {
        "targetAlias": "net8.0-windows",
        "dependencies": {
          "Microsoft.Web.WebView2": {
            "target": "Package",
            "version": "[1.0.2849.39, )"
          },
          "Newtonsoft.Json": {
            "target": "Package",
            "version": "[13.0.3, )"
          }
        },
        "imports": [
          "net461",
          "net462",
          "net47",
          "net471",
          "net472",
          "net48",
          "net481"
        ],
        "assetTargetFallback": true,
        "warn": true,
        "frameworkReferences": {
          "Microsoft.NETCore.App": {
            "privateAssets": "all"
          },
          "Microsoft.WindowsDesktop.App.WindowsForms": {
            "privateAssets": "none"
          }
        },
        "runtimeIdentifierGraphPath": "C:\\Program Files\\dotnet\\sdk\\8.0.403/PortableRuntimeIdentifierGraph.json"
      }
    }
  }
}

obj/project.assets.json (Microsoft.Web.WebView2/1.0.2739.15)

{
  "version": 3,
  "targets": {
    "net8.0-windows7.0": {
      "Microsoft.Web.WebView2/1.0.2739.15": {
        "type": "package",
        "build": {
          "build/Microsoft.Web.WebView2.targets": {}
        },
        "runtimeTargets": {
          "runtimes/win-arm64/native/WebView2Loader.dll": {
            "assetType": "native",
            "rid": "win-arm64"
          },
          "runtimes/win-x64/native/WebView2Loader.dll": {
            "assetType": "native",
            "rid": "win-x64"
          },
          "runtimes/win-x86/native/WebView2Loader.dll": {
            "assetType": "native",
            "rid": "win-x86"
          }
        }
      },
      "Newtonsoft.Json/13.0.3": {
        "type": "package",
        "compile": {
          "lib/net6.0/Newtonsoft.Json.dll": {
            "related": ".xml"
          }
        },
        "runtime": {
          "lib/net6.0/Newtonsoft.Json.dll": {
            "related": ".xml"
          }
        }
      }
    }
  },
  "libraries": {
    "Microsoft.Web.WebView2/1.0.2739.15": {
      "sha512": "hZg7vHWBg4RIiK3rhkNqX3hcBqqoVXVrrO2BVrVOiSmEgfLa7lY64G1tWh2VY84MfHIFLCAQNwn3Rwvu+ICHyw==",
      "type": "package",
      "path": "microsoft.web.webview2/1.0.2739.15",
      "hasTools": true,
      "files": [
        ".nupkg.metadata",
        ".signature.p7s",
        "LICENSE.txt",
        "NOTICE.txt",
        "WebView2.idl",
        "WebView2.tlb",
        "build/Common.targets",
        "build/Microsoft.Web.WebView2.targets",
        "build/WebView2Rules.Project.xml",
        "build/native/Microsoft.Web.WebView2.targets",
        "build/native/arm64/WebView2Loader.dll",
        "build/native/arm64/WebView2Loader.dll.lib",
        "build/native/arm64/WebView2LoaderStatic.lib",
        "build/native/include-winrt/WebView2Interop.h",
        "build/native/include-winrt/WebView2Interop.idl",
        "build/native/include-winrt/WebView2Interop.tlb",
        "build/native/include/WebView2.h",
        "build/native/include/WebView2EnvironmentOptions.h",
        "build/native/x64/WebView2Loader.dll",
        "build/native/x64/WebView2Loader.dll.lib",
        "build/native/x64/WebView2LoaderStatic.lib",
        "build/native/x86/WebView2Loader.dll",
        "build/native/x86/WebView2Loader.dll.lib",
        "build/native/x86/WebView2LoaderStatic.lib",
        "build/wv2winrt.targets",
        "lib/Microsoft.Web.WebView2.Core.winmd",
        "lib/net462/Microsoft.Web.WebView2.Core.dll",
        "lib/net462/Microsoft.Web.WebView2.Core.xml",
        "lib/net462/Microsoft.Web.WebView2.WinForms.dll",
        "lib/net462/Microsoft.Web.WebView2.WinForms.xml",
        "lib/net462/Microsoft.Web.WebView2.Wpf.dll",
        "lib/net462/Microsoft.Web.WebView2.Wpf.xml",
        "lib_manual/net6.0-windows10.0.17763.0/Microsoft.Web.WebView2.Core.Projection.dll",
        "lib_manual/netcoreapp3.0/Microsoft.Web.WebView2.Core.dll",
        "lib_manual/netcoreapp3.0/Microsoft.Web.WebView2.Core.xml",
        "lib_manual/netcoreapp3.0/Microsoft.Web.WebView2.WinForms.dll",
        "lib_manual/netcoreapp3.0/Microsoft.Web.WebView2.WinForms.xml",
        "lib_manual/netcoreapp3.0/Microsoft.Web.WebView2.Wpf.dll",
        "lib_manual/netcoreapp3.0/Microsoft.Web.WebView2.Wpf.xml",
        "microsoft.web.webview2.1.0.2739.15.nupkg.sha512",
        "microsoft.web.webview2.nuspec",
        "runtimes/win-arm64/native/WebView2Loader.dll",
        "runtimes/win-arm64/native_uap/Microsoft.Web.WebView2.Core.dll",
        "runtimes/win-x64/native/WebView2Loader.dll",
        "runtimes/win-x64/native_uap/Microsoft.Web.WebView2.Core.dll",
        "runtimes/win-x86/native/WebView2Loader.dll",
        "runtimes/win-x86/native_uap/Microsoft.Web.WebView2.Core.dll",
        "tools/VisualStudioToolsManifest.xml",
        "tools/wv2winrt/Antlr3.Runtime.dll",
        "tools/wv2winrt/Antlr4.StringTemplate.dll",
        "tools/wv2winrt/System.Buffers.dll",
        "tools/wv2winrt/System.CommandLine.DragonFruit.dll",
        "tools/wv2winrt/System.CommandLine.Rendering.dll",
        "tools/wv2winrt/System.CommandLine.dll",
        "tools/wv2winrt/System.Memory.dll",
        "tools/wv2winrt/System.Numerics.Vectors.dll",
        "tools/wv2winrt/System.Runtime.CompilerServices.Unsafe.dll",
        "tools/wv2winrt/codegen_util.dll",
        "tools/wv2winrt/concrt140_app.dll",
        "tools/wv2winrt/cs/System.CommandLine.resources.dll",
        "tools/wv2winrt/de/System.CommandLine.resources.dll",
        "tools/wv2winrt/es/System.CommandLine.resources.dll",
        "tools/wv2winrt/fr/System.CommandLine.resources.dll",
        "tools/wv2winrt/it/System.CommandLine.resources.dll",
        "tools/wv2winrt/ja/System.CommandLine.resources.dll",
        "tools/wv2winrt/ko/System.CommandLine.resources.dll",
        "tools/wv2winrt/msvcp140_1_app.dll",
        "tools/wv2winrt/msvcp140_2_app.dll",
        "tools/wv2winrt/msvcp140_app.dll",
        "tools/wv2winrt/pl/System.CommandLine.resources.dll",
        "tools/wv2winrt/pt-BR/System.CommandLine.resources.dll",
        "tools/wv2winrt/ru/System.CommandLine.resources.dll",
        "tools/wv2winrt/tr/System.CommandLine.resources.dll",
        "tools/wv2winrt/type_hierarchy.dll",
        "tools/wv2winrt/vcamp140_app.dll",
        "tools/wv2winrt/vccorlib140_app.dll",
        "tools/wv2winrt/vcomp140_app.dll",
        "tools/wv2winrt/vcruntime140_app.dll",
        "tools/wv2winrt/winrt_winmd.dll",
        "tools/wv2winrt/winrt_winmd.winmd",
        "tools/wv2winrt/wv2winrt.exe",
        "tools/wv2winrt/wv2winrt.exe.config",
        "tools/wv2winrt/wv2winrt.xml",
        "tools/wv2winrt/zh-Hans/System.CommandLine.resources.dll",
        "tools/wv2winrt/zh-Hant/System.CommandLine.resources.dll"
      ]
    },
    "Newtonsoft.Json/13.0.3": {
      "sha512": "HrC5BXdl00IP9zeV+0Z848QWPAoCr9P3bDEZguI+gkLcBKAOxix/tLEAAHC+UvDNPv4a2d18lOReHMOagPa+zQ==",
      "type": "package",
      "path": "newtonsoft.json/13.0.3",
      "files": [
        ".nupkg.metadata",
        ".signature.p7s",
        "LICENSE.md",
        "README.md",
        "lib/net20/Newtonsoft.Json.dll",
        "lib/net20/Newtonsoft.Json.xml",
        "lib/net35/Newtonsoft.Json.dll",
        "lib/net35/Newtonsoft.Json.xml",
        "lib/net40/Newtonsoft.Json.dll",
        "lib/net40/Newtonsoft.Json.xml",
        "lib/net45/Newtonsoft.Json.dll",
        "lib/net45/Newtonsoft.Json.xml",
        "lib/net6.0/Newtonsoft.Json.dll",
        "lib/net6.0/Newtonsoft.Json.xml",
        "lib/netstandard1.0/Newtonsoft.Json.dll",
        "lib/netstandard1.0/Newtonsoft.Json.xml",
        "lib/netstandard1.3/Newtonsoft.Json.dll",
        "lib/netstandard1.3/Newtonsoft.Json.xml",
        "lib/netstandard2.0/Newtonsoft.Json.dll",
        "lib/netstandard2.0/Newtonsoft.Json.xml",
        "newtonsoft.json.13.0.3.nupkg.sha512",
        "newtonsoft.json.nuspec",
        "packageIcon.png"
      ]
    }
  },
  "projectFileDependencyGroups": {
    "net8.0-windows7.0": [
      "Microsoft.Web.WebView2 >= 1.0.2739.15",
      "Newtonsoft.Json >= 13.0.3"
    ]
  },
  "packageFolders": {
    "C:\\Users\\Sefinek\\.nuget\\packages\\": {},
    "C:\\Program Files (x86)\\Microsoft Visual Studio\\Shared\\NuGetPackages": {}
  },
  "project": {
    "version": "1.0.3",
    "restore": {
      "projectUniqueName": "D:\\Projects\\apps\\Sefinek-Blocklists-App\\SefinekBlocklists\\Sefinek Blocklists App.csproj",
      "projectName": "Sefinek Blocklists",
      "projectPath": "D:\\Projects\\apps\\Sefinek-Blocklists-App\\SefinekBlocklists\\Sefinek Blocklists App.csproj",
      "packagesPath": "C:\\Users\\Sefinek\\.nuget\\packages\\",
      "outputPath": "D:\\Projects\\apps\\Sefinek-Blocklists-App\\SefinekBlocklists\\obj\\",
      "projectStyle": "PackageReference",
      "fallbackFolders": [
        "C:\\Program Files (x86)\\Microsoft Visual Studio\\Shared\\NuGetPackages"
      ],
      "configFilePaths": [
        "C:\\Users\\Sefinek\\AppData\\Roaming\\NuGet\\NuGet.Config",
        "C:\\Program Files (x86)\\NuGet\\Config\\Microsoft.VisualStudio.FallbackLocation.config",
        "C:\\Program Files (x86)\\NuGet\\Config\\Microsoft.VisualStudio.Offline.config"
      ],
      "originalTargetFrameworks": [
        "net8.0-windows"
      ],
      "sources": {
        "C:\\Program Files (x86)\\Microsoft SDKs\\NuGetPackages\\": {},
        "https://api.nuget.org/v3/index.json": {}
      },
      "frameworks": {
        "net8.0-windows7.0": {
          "targetAlias": "net8.0-windows",
          "projectReferences": {}
        }
      },
      "warningProperties": {
        "warnAsError": [
          "NU1605"
        ]
      },
      "restoreAuditProperties": {
        "enableAudit": "true",
        "auditLevel": "low",
        "auditMode": "direct"
      }
    },
    "frameworks": {
      "net8.0-windows7.0": {
        "targetAlias": "net8.0-windows",
        "dependencies": {
          "Microsoft.Web.WebView2": {
            "target": "Package",
            "version": "[1.0.2739.15, )"
          },
          "Newtonsoft.Json": {
            "target": "Package",
            "version": "[13.0.3, )"
          }
        },
        "imports": [
          "net461",
          "net462",
          "net47",
          "net471",
          "net472",
          "net48",
          "net481"
        ],
        "assetTargetFallback": true,
        "warn": true,
        "frameworkReferences": {
          "Microsoft.NETCore.App": {
            "privateAssets": "all"
          },
          "Microsoft.WindowsDesktop.App.WindowsForms": {
            "privateAssets": "none"
          }
        },
        "runtimeIdentifierGraphPath": "C:\\Program Files\\dotnet\\sdk\\8.0.403/PortableRuntimeIdentifierGraph.json"
      }
    }
  }
}

I am using only Microsoft.Web.WebView2 and Newtonsoft.Json in my project.

I've identified that the issue is caused by Microsoft.Web.WebView2 starting from version >1.0.2792.45. Currently, I am using an older version.

Old version

With version 1.0.2739.15, there are no issues whatsoever.

Latest

With the Windows App Packaging project, another error appears.

dedale · 2024-11-01T16:53:56Z

@sefinek well sorry, it seems project.assets.json files are not helpful in your case to identify the source of the conflict 😒

sir-wilhelm · 2024-11-01T17:24:02Z

@dedale
I've identified that the issue is caused by Microsoft.Web.WebView2 starting from version >1.0.2739.15. Currently, I am using an older version.

This was helpful, but in my case I was able to get rid of the mass of build warnings by flipping Microsoft.Web.WebView2 from
1.0.2849.39 to
1.0.2792.45.

sefinek · 2024-11-01T21:49:15Z

@dedale Yeah, I checked that file earlier... These errors are preventing me from publishing my app to the MS Store ):
@sir-wilhelm Indeed, in 1.0.2792.45, this issue is not present. Interesting.

Version	Warning	Error
1.0.2903.40	✅	✅
1.0.2849.39	✅	✅
1.0.2792.45	❌	✅
1.0.2739.15	❌	❌

1.0.2739.15 is the only good version that does not cause any warnings or errors.

Warning

Found conflicts between different versions of "WindowsBase" that could not be resolved.
There was a conflict between "WindowsBase, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" and "WindowsBase, Version=5.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35".
    "WindowsBase, Version=4.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" was chosen because it was primary and "WindowsBase, Version=5.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" was not.

Error (with Windows Application Packaging Project)

The processor architecture of the project being built "Any CPU" is not supported by the referenced SDK "Microsoft.VCLibs.Desktop, Version=14.0". Please consider changing the targeted processor architecture of your project (in Visual Studio this can be done through the Configuration Manager) to one of the architectures supported by the SDK: "x86, x64, ARM, ARM64".

Nabibhr · 2024-11-04T04:27:23Z

Updgrade the project

Paul-Williams · 2024-11-19T10:12:36Z

Dropping back to v1.0.2739.15 removed this warning for me also. Thanks

sir-wilhelm · 2024-11-19T19:23:43Z

The latest version of Microsoft.Web.WebView2 1.0.2903.40 still produces the warning, so I'll be sticking with 1.0.2792.45 for now.

sefinek · 2024-11-20T19:31:19Z

Yep, I'm wondering why this hasn't been fixed yet. With the latest version of Microsoft.Web.WebView2 installed, it's impossible to publish an MSIX package to the MS Store, as yet another error appears.

I've updated my #8289 (comment) to highlight the versions that encounter issues with the WinAppPackagingProject etc.

UltraWelfare · 2024-11-21T17:02:47Z

The latest version of Microsoft.Web.WebView2 1.0.2903.40 still produces the warning, so I'll be sticking with 1.0.2792.45 for now.

I'm getting the same issue here on a Library that uses WebView2 and net6.0-windows as the target framework.
I just get the warning but I'm not sure if I should push to nuget (or if it even allows me to)

dotnet-issue-labeler bot added Area-NetSDK untriaged labels Jan 4, 2023

marcpopMSFT transferred this issue from dotnet/sdk Jan 9, 2023

rainersigwald added needs-triage Have yet to determine what bucket this goes in. and removed Area-NetSDK untriaged labels Jan 4, 2024

maridematte added Priority:2 Work that is important, but not critical for the release triaged labels Aug 20, 2024

UltraWelfare mentioned this issue Nov 22, 2024

[Problem/Bug]: [NET 9] Dependency conflict MicrosoftEdge/WebView2Feedback#4924

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MSBuild does not resolve WindowsBase correctly #8289

MSBuild does not resolve WindowsBase correctly #8289

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UltraWelfare commented Nov 21, 2024

MSBuild does not resolve WindowsBase correctly #8289

MSBuild does not resolve WindowsBase correctly #8289

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EatonZ commented Jan 4, 2023

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KalleOlaviNiemitalo commented Jan 27, 2023

RobThree commented Jan 30, 2023

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Old version

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Warning

Error (with Windows Application Packaging Project)

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