mysql - Dotnet Core Microsoft.EntityFrameworkCore.Tools.Dotnet 未安装

Question

我有一个 Dotnet 核心项目，我试图在其中安装 Microsoft.EntityFrameworkCore.Tools.Dotnet 以使用迁移。我在 Mac 上，所以我使用 MySql.Data.EntityFrameworkCore 包。当我尝试安装命令行工具时出现以下错误，但是如果我手动将包添加到 csproj 文件，它将安装。但是在尝试运行 dotnet ef 时出现以下错误。

Version for package Microsoft.EntityFrameworkCore.Tools.Dotnet could not be resolved.

我在 .net core 1.0.4 和 .net core 2.0 上都试过了，但得到了同样的错误。我还尝试将以下内容添加到我的 csproj 文件中，但没有帮助

<ItemGroup>
    <DotNetCliToolReference Include="Microsoft.EntityFrameworkCore.Tools.Dotnet" Version="2.0.0-preview2-final" />
</ItemGroup>

有什么我想念的吗？

完整的 csproj 文件:

<Project Sdk="Microsoft.NET.Sdk.Web">
  <PropertyGroup>
    <TargetFramework>netcoreapp2.0</TargetFramework>
    <UserSecretsId>aspnet-WebApplication-FCC62E5C-58CB-44F6-835B-E0E34F1DE6D7</UserSecretsId>
  </PropertyGroup>
  <ItemGroup>
    <Folder Include="wwwroot\" />
  </ItemGroup>
  <ItemGroup>
    <PackageReference Include="Microsoft.AspNetCore.All" Version="2.0.0-preview2-final" />
    <PackageReference Include="Microsoft.Extensions.Configuration.Json" Version="2.0.0-preview2-final" />
    <PackageReference Include="MySql.Data.EntityFrameworkCore" Version="8.0.8-dmr" />
    <PackageReference Include="MySql.Data.EntityFrameworkCore.Design" Version="8.0.8-dmr" />
  </ItemGroup>
  <ItemGroup>
    <DotNetCliToolReference Include="Microsoft.VisualStudio.Web.CodeGeneration.Tools" Version="2.0.0-preview2-final" />
  </ItemGroup>
  <ItemGroup>
    <ProjectReference Include="..\ClassLibrary.Data\ClassLibrary.Data.csproj" />
  </ItemGroup>
</Project>

类库csproj:

<Project Sdk="Microsoft.NET.Sdk">
  <PropertyGroup>
    <TargetFramework>netstandard2.0</TargetFramework>
  </PropertyGroup>
  <ItemGroup>
    <PackageReference Include="MySql.Data.EntityFrameworkCore" Version="8.0.8-dmr" />
    <PackageReference Include="MySql.Data.EntityFrameworkCore.Design" Version="8.0.8-dmr" />
    <PackageReference Include="Microsoft.EntityFrameworkCore.Tools.Dotnet" Version="2.0.0-preview2-final" />
  </ItemGroup>
  <ItemGroup>
    <DotNetCliToolReference Include="Microsoft.EntityFrameworkCore.Tools.Dotnet" Version="2.0.0-preview2-final" />
  </ItemGroup>
</Project>

Answer 1

在class library csproj中去掉包中的Dotnet include:

错误的方式:

<PackageReference Include="Microsoft.EntityFrameworkCore.Tools.Dotnet" Version="2.0.0-preview2-final" />

正确的方法:

 <PackageReference Include="Microsoft.EntityFrameworkCore.Tools" Version="2.0.0-preview2-final" />

Microsoft.EntityFrameworkCore.Tools.Dotnet 仅在 DotNetCliToolReference 中设置:

 <DotNetCliToolReference Include="Microsoft.EntityFrameworkCore.Tools.Dotnet" Version="2.0.0-preview2-final" />