entity-framework-6 - 在 asp.net-core mvc 应用程序中创建新的 ApiController 时发生 PathTooLongException

Question

我使用带有 .NET 4.6.1 的 ASP.NET Web 应用程序完整框架模板创建了一个 ASP.NET MVC 项目

我尝试使用带有 Entity Framework 的脚手架项目创建 Api Controller 。在创建期间它失败并显示错误消息 -

"Unhandled Exception: System.IO.PathTooLongException." while executing codegenerator.exe.

我的项目是这样的-

D:\Perforce\XYZ\ABC\POC\ABC_PROEJCT\src\ABC_PROEJCT\Controllers

这就是我的 project.json 的样子-

{
  "dependencies": {
    "Glimpse": "2.0.0-beta1",
    "Microsoft.AspNetCore.Diagnostics": "1.0.0",
    "Microsoft.AspNetCore.Identity": "1.0.0",
    "Microsoft.AspNetCore.Mvc": "1.0.0",
    "Microsoft.AspNetCore.Mvc.TagHelpers": "1.0.0",
    "Microsoft.AspNetCore.Mvc.WebApiCompatShim": "1.0.0",
    "Microsoft.AspNetCore.Server.IISIntegration": "1.0.0",
    "Microsoft.AspNetCore.Server.Kestrel": "1.0.0",
    "Microsoft.AspNetCore.StaticFiles": "1.0.0",
    "Microsoft.EntityFrameworkCore.SqlServer": "1.0.0",
    "Microsoft.EntityFrameworkCore.SqlServer.Design": {
      "version": "1.0.0",
      "type": "build"
    },
    "Microsoft.EntityFrameworkCore.Tools": {
      "version": "1.0.0-preview2-final",
      "type": "build"
    },
    "Microsoft.Extensions.Configuration.CommandLine": "1.0.0",
    "Microsoft.Extensions.Configuration.FileExtensions": "1.0.0",
    "Microsoft.Extensions.Configuration.Json": "1.0.0",
    "Microsoft.Extensions.Configuration.UserSecrets": "1.0.0",
    "Microsoft.Extensions.Logging": "1.0.0",
    "Microsoft.Extensions.Logging.Console": "1.0.0",
    "Microsoft.Extensions.Logging.Debug": "1.0.0",
    "Microsoft.VisualStudio.Web.BrowserLink.Loader": "14.0.0",
    "Microsoft.VisualStudio.Web.CodeGeneration.Tools": "1.0.0-preview2-final",
    "Microsoft.VisualStudio.Web.CodeGenerators.Mvc": "1.0.0-preview2-final"
  },

  "tools": {
    "BundlerMinifier.Core": "2.0.238",
    "Microsoft.AspNetCore.Razor.Tools": "1.0.0-preview2-final",
    "Microsoft.AspNetCore.Server.IISIntegration.Tools": "1.0.0-preview2-final",
    "Microsoft.EntityFrameworkCore.Tools": "1.0.0-preview2-final",
    "Microsoft.Extensions.SecretManager.Tools": "1.0.0-preview2-final",
    "Microsoft.VisualStudio.Web.CodeGeneration.Tools": {
      "version": "1.0.0-preview2-final",
      "imports": [
        "portable-net45+win8"
      ]
    }
  },

  "frameworks": {
    "net461": { }
  },

  "buildOptions": {
    "emitEntryPoint": true,
    "preserveCompilationContext": true
  },

  "publishOptions": {
    "include": [
      "wwwroot",
      "web.config",
      "Views",
      "Areas/**/Views",
      "appsettings.json"
    ]
  },

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

我的环境是-

Visual Studio 2015 更新 3

.NET 框架 4.6.1

带有预览版 2 工具集的 .NET 核心 SDK 1.0

Windows 7 64 位操作系统

您能否提供一些意见来解决这个问题？

9 月 20 日更新

我在 VS2015 的 Output 选项卡上看到，在使用脚手架创建 API Controller 时执行以下命令:

C:\Program Files\dotnet\dotnet.exe aspnet-codegenerator --project "D:\Perforce\###\#######\POC\################\src\################" controller --force --controllerName UserTypesTestController --model ################.Models.UserTypes --dataContext ################.Models.#####UserContext --relativeFolderPath Controllers --controllerNamespace ################.Controllers --restWithNoViews.

完整路径连同 Controller 名称不超过 260 个字符。

Answer 1

4.6.2解决最大路径超过260个字符的问题https://blogs.msdn.microsoft.com/dotnet/2016/08/02/announcing-net-framework-4-6-2/