Question

在VS2017 Professional的程序包管理器控制台窗口中使用命令时

Scaffold-DbContext "server=server;uid=username;pwd=password;database=database" IBM.EntityFrameworkCore -force

具有以下依赖性：

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

  <PropertyGroup>
    <TargetFramework>netcoreapp2.2</TargetFramework>
  </PropertyGroup>

  <ItemGroup>
    <PackageReference Include="IBM.EntityFrameworkCore" Version="1.3.0.100" />
    <PackageReference Include="Microsoft.EntityFrameworkCore" Version="2.2.4" />
    <PackageReference Include="Microsoft.EntityFrameworkCore.Design" Version="2.2.4" />
    <PackageReference Include="Microsoft.EntityFrameworkCore.InMemory" Version="2.2.4" />
    <PackageReference Include="Microsoft.EntityFrameworkCore.Relational" Version="2.2.4" />
      <DotNetCliToolReference Include="Microsoft.EntityFrameworkCore.Tools.DotNet" Version="2.2.3" />
    <PackageReference Include="Microsoft.EntityFrameworkCore.Tools" Version="2.2.4">
      <PrivateAssets>all</PrivateAssets>
      <IncludeAssets>runtime; build; native; contentfiles; analyzers</IncludeAssets>
    </PackageReference>
  </ItemGroup>

</Project>

我遇到以下异常：

System.MissingMethodException: Method not found: 'Void Microsoft.EntityFrameworkCore.Scaffolding.Internal.CSharpDbContextGenerator..ctor(Microsoft.EntityFrameworkCore.Scaffolding.IScaffoldingProviderCodeGenerator, Microsoft.EntityFrameworkCore.Design.IAnnotationCodeGenerator, Microsoft.EntityFrameworkCore.Scaffolding.Internal.ICSharpUtilities)'.
   at IBM.EntityFrameworkCore.Scaffolding.Internal.Db2CSharpDbContextGenerator..ctor(IScaffoldingProviderCodeGenerator providerCodeGenerator, IAnnotationCodeGenerator annotationCodeGenerator, ICSharpUtilities cSharpUtilities)

应该注意的是，在同一解决方案中还有另一个项目也使用EntityFramework Core for SQL Server，该项目正在通过Scaffold-DbContext命令生成数据库上下文。

具有IBM.EntityFramework的Scaffold-DbContext时发生异常

0 个答案: