相同版本和publickeytoken，但显示“警告MSB3243:无法解决System.IO.Compression、Version=4.1.3.0之间的冲突”

Question

穆塞普吉：

<Project Sdk="Microsoft.NET.Sdk">
  <PropertyGroup>
    <TargetFrameworks>net461;netstandard2.0;net5.0</TargetFrameworks>
  </PropertyGroup>
  <ItemGroup>
    <Reference Include="System.IO.Compression" />
  </ItemGroup>
</Project>

它有三个框架：.net4.6.1、netstandard2和.net 5。

和系统显示下面的消息

 warning MSB3243: No way to resolve conflict between "System.IO.Compression, Version=4.1.3.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" and "System.IO.Compression". Choosing "System.IO.Compression, Version=4.1.3.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" arbitrarily.

我很困惑，他们的版本是一样的。

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全码

Severity    Code    Description Project File    Line    Suppression State
Warning MSB3245 Could not resolve this reference. Could not locate the assembly "System.IO.Compression". Check to make sure the assembly exists on disk. If this reference is required by your code, you may get compilation errors.    MiniExcelLibs   C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\MSBuild\Current\Bin\Microsoft.Common.CurrentVersion.targets   2182    
Warning MSB3245 Could not resolve this reference. Could not locate the assembly "System.IO.Compression". Check to make sure the assembly exists on disk. If this reference is required by your code, you may get compilation errors.    MiniExcelLibs   C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\MSBuild\Current\Bin\Microsoft.Common.CurrentVersion.targets   2182    
Warning MSB3243 No way to resolve conflict between "System.IO.Compression, Version=4.1.3.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" and "System.IO.Compression". Choosing "System.IO.Compression, Version=4.1.3.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" arbitrarily. MiniExcelLibs   C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\MSBuild\Current\Bin\Microsoft.Common.CurrentVersion.targets   2182    
Warning MSB3243 No way to resolve conflict between "System.IO.Compression, Version=5.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" and "System.IO.Compression". Choosing "System.IO.Compression, Version=5.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" arbitrarily. MiniExcelLibs   C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\MSBuild\Current\Bin\Microsoft.Common.CurrentVersion.targets   2182    

​

​

我如何处理的声音或设置配置忽略它，谢谢。

最新情况：

我试过为每个框架设置版本，但没有工作

<Project Sdk="Microsoft.NET.Sdk">
  <ItemGroup Condition=" '$(TargetFramework)' == 'net461'">
    <Reference Include="System.IO.Compression" Version="4.1.3.0"  />
  </ItemGroup>
  <ItemGroup Condition=" '$(TargetFramework)' == 'netstandard2.0'">
    <Reference Include="System.IO.Compression" Version="4.1.3.0"  />
  </ItemGroup>
  <ItemGroup Condition=" '$(TargetFramework)' == 'net5.0'">
    <Reference Include="System.IO.Compression" Version="5.0.0.0"  />
  </ItemGroup>
</Project>

Answer 1

https://github.com/dotnet/sdk/issues/16407

marcpopMSFT说

您能尝试删除对System.IO.Compression的引用吗？该文件是.net核心运行时的一部分，所有运行时程序集都在您的项目中隐式引用，以使新开发人员更容易使用.NET，即使不必引用也是如此，因此您不应该需要该引用。它看起来像是在运行时中找到版本和直接引用的版本，并警告您实际上要引用它两次。

我更新csproj如下，它可以解决我的问题。

  <ItemGroup Condition=" '$(TargetFramework)' == 'net461'">
    <Reference Include="System.IO.Compression"  />
  </ItemGroup>