Question

每当我启动.NET CORE 2 Web App项目使用身份验证（即个人身份验证）时，我会收到以下警告：

Package＆＃39; Microsoft.Composition 1.0.27＆＃39;使用＆＃39; .NETPortable，Version = v0.0，Profile = Profile259，.NETFramework，Version = v4.6.1＆＃39;进行了恢复。而不是项目目标框架＆＃39; .NETCoreApp，Version = v2.0＆＃39;。此软件包可能与您的项目不完全兼容。

问题不止于此，我正在尝试安装Microsoft.AspNetCore.Authentication.Cookies，我收到以下错误：

包恢复失败。回滚项目的包更改

我尝试了以下操作，全部失败！

正在删除Nuget.Config
我添加了<PropertyGroup> <PackageTargetFallback>$(PackageTargetFallback);dotnet</PackageTargetFallback> </PropertyGroup>
通过dotnet restore
清除Nuget缓存（来自工具＆gt; NuGet＆gt;程序包管理器设置）

如何解决此冲突？

这是我的项目文件

＆＃13;

<Project Sdk="Microsoft.NET.Sdk.Web">

  <PropertyGroup>
    <TargetFramework>netcoreapp2.0</TargetFramework>
    <MvcRazorCompileOnPublish>true</MvcRazorCompileOnPublish>
    <AssetTargetFallback>$(AssetTargetFallback);portable-net45+win8+wp8+wpa81;</AssetTargetFallback>
    <UserSecretsId></UserSecretsId>
  </PropertyGroup>
  <PropertyGroup>
    <PackageTargetFallback>$(PackageTargetFallback);dotnet</PackageTargetFallback>
  </PropertyGroup>

  <ItemGroup>
    <PackageReference Include="Microsoft.AspNetCore.All" Version="2.0.0-preview2-final" />
    <PackageReference Include="Microsoft.EntityFrameworkCore.Tools" Version="2.0.0-preview2-final" PrivateAssets="All" />
    <PackageReference Include="Microsoft.VisualStudio.Web.CodeGeneration.Design" Version="2.0.0-preview2-final" PrivateAssets="All" />
  </ItemGroup>

  <ItemGroup>
    <DotNetCliToolReference Include="Microsoft.EntityFrameworkCore.Tools.DotNet" Version="2.0.0-preview2-final" />
    <DotNetCliToolReference Include="Microsoft.Extensions.SecretManager.Tools" Version="2.0.0-preview2-final" />
    <DotNetCliToolReference Include="Microsoft.VisualStudio.Web.CodeGeneration.Tools" Version="2.0.0-preview2-final" />
  </ItemGroup>

</Project>

＆＃13;

和我屏幕上的快照

Answer 1

通过添加.csproj并使用NuGet更新以下包来解决依赖性问题，

<PackageReference Include="Microsoft.Composition" Version="1.0.27" ExcludeAssets="All" />  
<PackageReference Include="System.Composition" Version="1.0.31" />

.csproj是

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

  <PropertyGroup>
    <TargetFramework>netcoreapp2.0</TargetFramework>
    <MvcRazorCompileOnPublish>true</MvcRazorCompileOnPublish>
    <AssetTargetFallback>$(AssetTargetFallback);portable-net45+win8+wp8+wpa81;</AssetTargetFallback>
    <UserSecretsId>***********</UserSecretsId>
  </PropertyGroup>

  <ItemGroup>
    <PackageReference Include="Microsoft.AspNetCore.All" Version="2.0.0-preview2-final" />
    <PackageReference Include="Microsoft.AspNetCore.Authentication.Cookies" Version="2.0.0-preview2-final" />
    <PackageReference Include="Microsoft.AspNetCore.Identity" Version="2.0.0-preview2-final" />
    <PackageReference Include="Microsoft.AspNetCore.Identity.EntityFrameworkCore" Version="2.0.0-preview2-final" />
    <PackageReference Include="Microsoft.Composition" Version="1.0.31" ExcludeAssets="All" />
    <PackageReference Include="Microsoft.EntityFrameworkCore.InMemory" Version="2.0.0-preview2-final" />
    <PackageReference Include="Microsoft.EntityFrameworkCore.SqlServer" Version="2.0.0-preview2-final" />
    <PackageReference Include="System.Composition" Version="1.1.0-preview2-25405-01" />
    <PackageReference Include="Microsoft.EntityFrameworkCore.Tools" Version="2.0.0-preview2-final" PrivateAssets="All" />
    <PackageReference Include="Microsoft.VisualStudio.Web.CodeGeneration.Design" Version="2.0.0-preview2-final" PrivateAssets="All" />
  </ItemGroup>

  <ItemGroup>
    <DotNetCliToolReference Include="Microsoft.EntityFrameworkCore.Tools.DotNet" Version="2.0.0-preview2-final" />
    <DotNetCliToolReference Include="Microsoft.Extensions.SecretManager.Tools" Version="2.0.0-preview2-final" />
    <DotNetCliToolReference Include="Microsoft.VisualStudio.Web.CodeGeneration.Tools" Version="2.0.0-preview2-final" />
  </ItemGroup>

</Project>

Ref，Ref2

如何解决ASP.NET.Core 2包恢复相关的警告和错误

1 个答案: