Question

我在当前项目上运行迁移时遇到问题。

这一切都是在我尝试使用Visual Studio 2015上的Package Manager控制台添加迁移时开始的。对模型所做的更改将不会应用，并且迁移Up / Down方法为空。

我尝试删除迁移，创建新迁移，删除数据库并从头开始。没有任何效果。

毕竟我使用

在项目中运行完整的Clean

主菜单＆gt;构建＆gt;批量构建＆gt;清洁

每次尝试在Package Manage Console上运行EF命令时都会这样：

PM＆GT;更新数据库

我收到此错误：

无法找到程序集＆＃39; D：\ Repo \ Tapr \ src \ Tapr.Api。\ bin \ Debug \ net461 \ win7-x64 \ Tapr.Api.exe＆＃39;。

我现在没有用project.json定位win7-64运行时。
我试过这样做，文件夹\bin\Debug\net461\win7-x64没有被创建。

有关如何在正确的 win10-x64 文件夹中进行EF搜索项目的任何想法？

非常感谢！

更新

global.json

{
  "projects": [ "src", "test" ],
  "sdk": {
    "version": "1.0.0-preview2-003156"
  }
}

project.json

{
  "buildOptions": {
    "emitEntryPoint": true,
    "preserveCompilationContext": true,
    "compile": {
    }
  },
  "dependencies": {
    "IdentityServer4": "1.0.0",
    "IdentityServer4.AspNetIdentity": "1.0.0",
    "IdentityServer4.EntityFramework": "1.0.0",
    "Microsoft.AspNetCore.Authentication.Cookies": "1.1.0",
    "Microsoft.AspNetCore.Authentication.Facebook": "1.1.*",
    "Microsoft.AspNetCore.Authentication.Google": "1.1.*",
    "Microsoft.AspNetCore.Authentication.LinkedIn": "1.0.1",
    "Microsoft.AspNetCore.Authentication.MicrosoftAccount": "1.1.0",
    "Microsoft.AspNetCore.Authentication.Twitter": "1.1.*",
    "Microsoft.AspNetCore.Diagnostics": "1.1.0",
    "Microsoft.AspNetCore.Identity.EntityFrameworkCore": "1.1.0",
    "Microsoft.AspNetCore.Mvc": "1.1.*",
    "Microsoft.AspNetCore.Server.IISIntegration": "1.1.*",
    "Microsoft.AspNetCore.Server.Kestrel": "1.1.*",
    "Microsoft.AspNetCore.StaticFiles": "1.1.*",
    "Microsoft.EntityFrameworkCore": "1.1.0",
    "Microsoft.EntityFrameworkCore.Design": "1.1.0",
    "Microsoft.EntityFrameworkCore.SqlServer": "1.1.*",
    "Microsoft.Extensions.Configuration.Json": "1.1.0",
    "Microsoft.Extensions.Logging.Console": "1.1.*",
    "Microsoft.Extensions.Logging.Debug": "1.1.*",
    "Microsoft.VisualStudio.Web.BrowserLink.Loader": "14.1.0",
    "System.Linq": "4.0.0",
    "System.Reflection.TypeExtensions": "4.3.0"
  },

  "tools": {
    "Microsoft.AspNetCore.Server.IISIntegration.Tools": "1.1.0-preview4-final",
    "Microsoft.EntityFrameworkCore.Tools": "1.2.0-preview1-23339",
    "Microsoft.EntityFrameworkCore.Tools.DotNet": "1.2.0-preview1-23339"
  },

  "frameworks": {
    "net461": {
      "dependencies": {
        "Tapr.Utils.Messenger.Email": "1.0.0-*",
        "Tapr.Utils.Messenger.Sms": "1.0.0-*"
      }
    }
  },

  "runtimeOptions": {
    "gcServer": true
  },

  "runtimes": {
    "win10-x64": {}
  },

  "publishOptions": {
    "include": [
      "wwwroot",
      "**/*.cshtml",
      "appsettings.json",
      "web.config",
      "idsrv3test.pfx"
    ]
  },

  "scripts": {
    "postpublish": [
      "dotnet publish-iis --publish-folder %publish:OutputPath% --framework %publish:FullTargetFramework%"
    ]
  },

  "configurations": {
    "Debug": {
      "buildOptions": {
        "define": [ "DEBUG", "TRACE" ],
        "emitEntryPoint": true,
        "preserveCompilationContext": true
      }
    },
    "Staging": {
      "buildOptions": {
        "define": [ "STAGING", "TRACE" ],
        "emitEntryPoint": true,
        "preserveCompilationContext": true
      }
    },
    "Release": {
      "buildOptions": {
        "define": [ "RELEASE", "TRACE" ],
        "emitEntryPoint": true,
        "preserveCompilationContext": true,
        "optimize": true,
        "platform": "x64"
      }
    }
  }

}

PM＆GT; dotnet --version导致：

1.0.0-preview2-003156

Answer 1

完全从runtimes删除project.json部分。您使用工具的预览版本 - 可能存在错误或“未完成”功能。

如果确实需要，您可以在创建迁移后返回runtimes。但重新评估，你真的需要吗？让runtimes创建自包含部署（more info），您不需要在生产服务器上安装.NET Core，但您必须在dev / build机器上具有确切的运行时才能将所有必需的文件放入你发布/发布文件夹。

运行迁移时出现实体框架错误

1 个答案: