Question

我遇到了以下问题。

Detected package downgrade: Microsoft.NETCore.App from 2.0.0-preview3-25514-02 to 2.0.0-preview2-006497

在具有以下csproj的项目上执行dotnet restore：

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

  <PropertyGroup>
    <TargetFramework>netcoreapp2.0</TargetFramework>
    <DebugType>portable</DebugType>
    <PreserveCompilationContext>true</PreserveCompilationContext>
    <AssemblyName>FoodgetWebapp</AssemblyName>
    <OutputType>Exe</OutputType>
    <PackageId>FoodgetWebapp</PackageId>
    <UserSecretsId>FoodgetWebapp-c23d27a4-eb88-4b18-9b77-2a93f3b15119</UserSecretsId>
    <RuntimeFrameworkVersion>2.0.0-preview2-006497</RuntimeFrameworkVersion>
    <TypeScriptCompileBlocked>true</TypeScriptCompileBlocked>
  </PropertyGroup>

  <ItemGroup>
    <Compile Remove="node_modules\**\*;Client\**\*" />
    <Content Remove="wwwroot\dist\**\*" />
  </ItemGroup>  

  <Target Name="RunWebpack" BeforeTargets="BeforePublish">
    <Exec Command="npm run clean:dist" />
    <Exec Command="npm run build:prod" />
    <ItemGroup>
      <DistFiles Include="wwwroot\dist\**\*" />
      <Content Include="@(DistFiles)" CopytoPublishDirectory="Always" />
      <Content Include="app.yaml" CopyToOutputDirectory="Always" />
      <ContentWithTargetPath Include="@(DistFiles)" TargetPath="%(Identity)" CopyToPublishDirectory="Always" />
    </ItemGroup>
  </Target>

  <ItemGroup>
    <PackageReference Include="Microsoft.NETCore.App" Version="2.0.0-preview2-006497" />
    <PackageReference Include="AspNet.Security.OAuth.Introspection" Version="2.0.0-*" />
    <PackageReference Include="AspNet.Security.OAuth.Validation" Version="2.0.0-*" />
    <PackageReference Include="Microsoft.AspNetCore.AzureAppServicesIntegration" Version="2.0.0-*" />
    <PackageReference Include="Microsoft.AspNetCore.Diagnostics" Version="2.0.0-*" />
    <PackageReference Include="Microsoft.AspNetCore.Diagnostics.EntityFrameworkCore" Version="2.0.0-*" />
    <PackageReference Include="Microsoft.AspNetCore.Identity.EntityFrameworkCore" Version="2.0.0-*" />
    <PackageReference Include="Microsoft.AspNetCore.Mvc" Version="2.0.0-*" />
    <PackageReference Include="Microsoft.AspNetCore.Cors" Version="2.0.0-*" />
    <PackageReference Include="Microsoft.AspNetCore.Antiforgery" Version="2.0.0-*" />
    <PackageReference Include="Microsoft.AspNetCore.Diagnostics.EntityFrameworkCore" Version="2.0.0-*" />
    <PackageReference Include="Microsoft.AspNetCore.Authorization" Version="2.0.0-*" />
    <PackageReference Include="Microsoft.AspNetCore.Authentication.Google" Version="2.0.0-*" />
    <PackageReference Include="Microsoft.AspNetCore.Authentication.Facebook" Version="2.0.0-*" />
    <PackageReference Include="Microsoft.AspNetCore.Authentication.MicrosoftAccount" Version="2.0.0-*" />
    <PackageReference Include="Microsoft.AspNetCore.Authentication.Twitter" Version="2.0.0-*" />
    <PackageReference Include="Microsoft.AspNetCore.Server.IISIntegration" Version="2.0.0-*" />
    <PackageReference Include="Microsoft.AspNetCore.Server.Kestrel" Version="2.0.0-*" />
    <PackageReference Include="Microsoft.AspNetCore.Server.Kestrel.Https" Version="2.0.0-*" />
    <PackageReference Include="Microsoft.AspNetCore.StaticFiles" Version="2.0.0-*" />
    <PackageReference Include="Microsoft.Extensions.Caching.Memory" Version="2.0.0-*" />
    <PackageReference Include="Microsoft.AspNetCore.ResponseCompression" Version="2.0.0-*" />
    <PackageReference Include="Microsoft.AspNetCore.WebSockets" Version="2.0.0-*" />
    <PackageReference Include="Microsoft.EntityFrameworkCore.Sqlite" Version="2.0.0-*" />
    <PackageReference Include="Microsoft.EntityFrameworkCore.SqlServer" Version="2.0.0-*" />
    <PackageReference Include="Microsoft.Extensions.Configuration.Binder" Version="2.0.0-*" />
    <PackageReference Include="Microsoft.Extensions.Configuration.EnvironmentVariables" Version="2.0.0-*" />
    <PackageReference Include="Microsoft.Extensions.Configuration.UserSecrets" Version="2.0.0-*" />
    <PackageReference Include="Microsoft.Extensions.Configuration.Json" Version="2.0.0-*" />
    <PackageReference Include="Microsoft.Extensions.Logging" Version="2.0.0-*" />
    <PackageReference Include="Microsoft.Extensions.Logging.Console" Version="2.0.0-*" />
    <PackageReference Include="Microsoft.Extensions.Logging.Debug" Version="2.0.0-*" />
    <PackageReference Include="Microsoft.EntityFrameworkCore" Version="2.0.0-*" />
    <PackageReference Include="Microsoft.AspNetCore.Http.Abstractions" Version="2.0.0-*" />
    <PackageReference Include="Microsoft.AspNetCore.AngularServices" Version="1.1.0-beta-000002" />
    <PackageReference Include="AspNet.Security.OAuth.GitHub" Version="1.0.0-rc2-final" />
    <PackageReference Include="AspNet.Security.OAuth.LinkedIn" Version="1.0.0-rc2-final" />
    <PackageReference Include="OpenIddict" Version="2.0.0-*" />
    <PackageReference Include="OpenIddict.EntityFrameworkCore" Version="2.0.0-*" />
    <PackageReference Include="OpenIddict.Mvc" Version="2.0.0-*" />
    <PackageReference Include="SendGrid.NetCore" Version="1.0.0-rtm-00002" />
    <PackageReference Include="MailKit" Version="1.16.2" />
    <PackageReference Include="Swashbuckle.AspNetCore" Version="1.0.0" />
    <PackageReference Include="Swashbuckle.AspNetCore.SwaggerUI" Version="1.0.0" />
    <PackageReference Include="Twilio" Version="5.3.0" />
    <PackageReference Include="Stripe.net" Version="8.1.1" />
    <PackageReference Include="Newtonsoft.Json" Version="10.0.2" />
    <PackageReference Include="Webpack" Version="4.0.0" />
    <PackageReference Include="Serilog" Version="2.4.1-dev-00801" />
    <PackageReference Include="Serilog.Extensions.Logging" Version="1.4.1-dev-10155" />
    <PackageReference Include="Serilog.Sinks.Seq" Version="3.2.0" />
    <PackageReference Include="Bogus" Version="15.0.1" />
    <PackageReference Include="Microsoft.EntityFrameworkCore.Tools" Version="2.0.0-*">
      <PrivateAssets>All</PrivateAssets>
    </PackageReference>
    <PackageReference Include="Microsoft.VisualStudio.Web.CodeGeneration.Design" Version="2.0.0-*">
      <PrivateAssets>All</PrivateAssets>
    </PackageReference>
  </ItemGroup>

  <ItemGroup>
    <PackageReference Include="Microsoft.AspNetCore.All" Version="2.0.0-preview2-*" />
  </ItemGroup>

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

</Project>

我做错了吗？

具体的错误信息如下：

error NU1605: Detected package downgrade: Microsoft.NETCore.App from 2.0.0-preview3-25514-02 to 2.0.0-preview2-006497. Reference the package directly from the project to select a different version.

Answer 1

你有

<PackageReference Include="Microsoft.NETCore.App" Version="2.0.0-preview2-006497" />

在你的csproj中。但是因为你在所有其他版本上使用通配符

<PackageReference Include="Microsoft.AspNetCore.AzureAppServicesIntegration" Version="2.0.0-*" />

它试图获得每晚预览3。通常你不应该使用夜间构建，除非你知道你正在做什么，只是使用主要nuget源上发布的预览之一

检测到的软件包降级：Microsoft.NETCore.App从2.0.0-preview3-25514-02到2.0.0-preview2-006497

1 个答案: