How do I fix the error: "Unhandled exception. System.IO.FileLoadException: Could not load file or assembly 'dotnet-aspnet-codegenerator-design, Version=7.0.6.0, Culture=neutral, PublicKeyToken=adb9793829ddae60'."

Emmanuel Genga 0

The above error happens when I try to create a scaffold for the identity, I have installed all the necessary packages that are needed for code generation but it still keeps giving me the same output. I also tried rebuilding the project and restarting the editor but that has not changed anything. If anyone has encountered the same problem and managed to solve it kindly assist.

AgaveJoe 26,136 Reputation points

2023-06-09T11:14:42.8533333+00:00

Are you building a ASP.NET Core application or ASP.NET MVC application?
Emmanuel Genga 0 Reputation points

2023-06-09T11:20:40.8966667+00:00

ASP.NET CORE with Model View Controller
AgaveJoe 26,136 Reputation points

2023-06-09T11:48:33.52+00:00

The error message indicates you are missing the dotnet-aspnet-codegenerator-design, Version=7.0.6.0 package.

You either have to install the package or adjust the version in the project file. You can also use NeGet to get the right version.

If you still need help, then show us your project file.

Emmanuel Genga 0

I have downloaded the dependency as stated above but nothing has changed, it keeps giving me the same error. Here are my installed packages:

<ItemGroup>     
<PackageReference Include="Microsoft.AspNetCore.Identity.EntityFrameworkCore" Version="7.0.5" />     <PackageReference Include="Microsoft.AspNetCore.Identity.UI" Version="7.0.5" />     
<PackageReference Include="Microsoft.CodeAnalysis.Analyzers" Version="3.3.4">       <PrivateAssets>all</PrivateAssets>       
<IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>     </PackageReference>     
<PackageReference Include="Microsoft.EntityFrameworkCore" Version="7.0.5" />
     <PackageReference Include="Microsoft.EntityFrameworkCore.SqlServer" Version="7.0.5" />     <PackageReference Include="Microsoft.EntityFrameworkCore.Tools" Version="7.0.5">       <PrivateAssets>all</PrivateAssets>       
<IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>     </PackageReference>     
<PackageReference Include="Microsoft.VisualStudio.Web.CodeGeneration.Design" Version="7.0.6" />     <PackageReference Include="Microsoft.VisualStudio.Web.CodeGeneration.Utils" Version="7.0.6" />   </ItemGroup>

Chen Li - MSFT 1,221 Reputation points

2023-06-12T01:52:32.8666667+00:00

Hi @Emmanuel Genga,

How did you get this problem? Install the Nuget package first and then install the Identity scaffolding or install the scaffolding directly? .NET version is 7.0?