aspnet-codegenerator: No code generators available, Even after adding Microsoft.VisualStudio.Web.CodeGeneration.Design

问题

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

1. Created an ASP.Net RazorPages application using dotnet new webapp

2. Did a dotnet build

3. Installed dotnet-aspnet-codegenerator using

   dotnet tool install --global dotnet-aspnet-codegenerator --version 3.1.4

4. Ran dotnet aspnet-codegenerator --help

   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.

5. Added the package mentioned in step 4 using

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

   Package added is:

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

6. Again ran: dotnet build

   Final-Step

7. Ran dotnet aspnet-codegenerator --help

   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 core installed version: 3.1.401

Os: Ubuntu 20.04

回答1:

I test your command,and when I do this dotnet tool install --global dotnet-aspnet-codegenerator --version 3.1.4,I can get

and then Ran dotnet aspnet-codegenerator --help,I get the same message No code generators are available in this project.Add Microsoft.VisualStudio.Web.CodeGeneration.Design package to the project as a NuGet with you, but when I do the following,I can run without the message:

I think maybe the package is not added correctly,you can try to remove and add it again.

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

回答2:

This is already a few month old, but I ran into it recently for all my projects.

In case someone else lands on this page, the solution in my case(MAC OS), was to uninstall and reinstall dotnet-aspnet-codegenerator.

Run in terminal:

dotnet tool uninstall --global dotnet-aspnet-codegenerator

dotnet tool install --global dotnet-aspnet-codegenerator --version 3.1.4

回答3:

I have found the SOLUTION to this issue:

The newest versions are giving some problems, so you will have to downgrade the version of the sdk to the 3.1.3 by writing this command on the terminal:

sudo apt install dotnet-sdk-3.1=3.1.301-1

After that you will need to install the following:

dotnet tool install --global dotnet-aspnet-codegenerator --version 3.1.3

After that you will need to add the right Web.CodeGeneration.Design Package by writing this on the terminal:

sudo apt install dotnet-sdk-3.1=3.1.301-1 dotnet tool install --global dotnet-aspnet-codegenerator --version 3.1.3

That has worked for me!!

来源：https://stackoverflow.com/questions/63584060/aspnet-codegenerator-no-code-generators-available-even-after-adding-microsoft