aspnet-codegenerator:即使添加了Microsoft.VisualStudio.Web.CodeGeneration.Design，也没有可用的代码生成器 [英] aspnet-codegenerator: No code generators available, Even after adding Microsoft.VisualStudio.Web.CodeGeneration.Design

问题描述

我无法尝试使用 aspnet-codegenerator 生成脚手架:

Unable to generate scaffolding using aspnet-codegenerator, below is what I tried:

1. 使用以下命令创建一个ASP.Net RazorPages应用程序 dotnet新的网络应用程序

建立了一个 dotnet构建

使用安装的dotnet-aspnet-codegenerator

Installed dotnet-aspnet-codegenerator using

dotnet工具安装--global dotnet-aspnet-codegenerator --version 3.1.4

Ran dotnet aspnet-codegenerator --help

它表示:该项目中没有代码生成器.将 Microsoft.VisualStudio.Web.CodeGeneration.Design 软件包作为NuGet软件包引用添加到项目中.

It says: No code generators are available in this project.Add Microsoft.VisualStudio.Web.CodeGeneration.Design package to the project as a NuGet package reference.

使用步骤

dotnet添加软件包Microsoft.VisualStudio.Web.CodeGeneration.Design

添加的包裹为:

< ItemGroup>< PackageReference Include ="Microsoft.VisualStudio.Web.CodeGeneration.Design"；版本="3.1.4"./></ItemGroup>

再次运行: dotnet构建

最后一步

Ran dotnet aspnet-codegenerator --help

再次说:该项目中没有代码生成器.将Microsoft.VisualStudio.Web.CodeGeneration.Design软件包作为NuGet软件包引用添加到项目中.

Again it says: No code generators are available in this project.Add Microsoft.VisualStudio.Web.CodeGeneration.Design package to the project as a NuGet package reference.

.Net核心安装版本:3.1.401

.Net core installed version: 3.1.401

操作系统:Ubuntu 20.04

Os: Ubuntu 20.04

推荐答案

从.net core 3.1.4升级到5.0.1时，我也遇到同样的问题.

I have same problem when upgrade from .net core 3.1.4 to 5.0.1.

我的解决方案:

1. 更新全局工具:

  dotnet tool install --global dotnet-aspnet-codegenerator
  dotnet tool update --global dotnet-aspnet-codegenerator
  dotnet tool install --global dotnet-ef
  dotnet tool update --global dotnet-ef

1. 添加/更新软件包的链接

  dotnet remove package Microsoft.VisualStudio.Web.CodeGeneration.Design
  dotnet add package Microsoft.VisualStudio.Web.CodeGeneration.Design
  dotnet add package Microsoft.EntityFrameworkCore.Design

1. 将.csproj和launch.json文件中的字符串 netcoreapp3.1.4 替换为 net5.0
2. 清除目录
   • bin
   • obj

  dotnet aspnet-codegenerator --help

如果一切正常，它将显示可用的发电机.

If all fine it will show available generators.

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