Doesn't work with .net core 9.x

[kemundos]

Description

Going through the BlazorWebAppMovies tutorial.

The command below is used in the scaffolding part. However, when running this command, it's stated that you need .net core 8. I'm on .net core 9.

Seems the tutorial is broken as you cannot progress without this in a sensible way.

dotnet aspnet-codegenerator blazor CRUD -dbProvider sqlite -dc BlazorWebAppMovies.Data.BlazorWebAppMoviesContext -m Movie -outDir Components/Pages

Page URL

https://learn.microsoft.com/en-us/aspnet/core/blazor/tutorials/movie-database-app/part-2?view=aspnetcore-9.0

Content source URL

https://github.com/dotnet/AspNetCore.Docs/blob/main/aspnetcore/blazor/tutorials/movie-database-app/part-2.md

Document ID

f9acc6f3-d6e2-ca66-9a66-7e0ea09aa38f

Article author

@guardrex

Metadata

• ID: f9acc6f3-d6e2-ca66-9a66-7e0ea09aa38f
• PlatformId: ef97ed5a-9570-fb55-a33b-46ed7e991772
• Service: aspnet-core
• Sub-service: blazor

Related Issues

[github-actions]

🌱🐇 Spring is coming. Hang in there! I'm pull'in for ya! 🐣🌻

Stand-by! ... A green dinosaur 🦖 will be along shortly to assist.

[guardrex]

Hello @kemundos ...

it's stated that you need .net core 8

Very strange 👽. I've stepped through the whole thing with .NET 9 when I was working up .NET 9 updates for the tutorial series.

Well ... actually ... I wasn't using the CLI. I was using VS.

Can you screenshot the error from the console and place it into a GH comment here? I'll probably walk the tutorial to this point tomorrow (Friday) and see if I can repro that error here with the CLI commands. I'll get back to you .......

[guardrex]

@danroth27 ... For the Blazor movie tutorial, @kemundos reports here ...

The command below is used in the scaffolding part. However, when running this command, it's stated that you need .net core 8. I'm on .net core 9.

dotnet aspnet-codegenerator blazor CRUD -dbProvider sqlite -dc BlazorWebAppMovies.Data.BlazorWebAppMoviesContext -m Movie -outDir Components/Pages

Does that make any sense?

[guardrex]

Ok ... I see a problem. I followed the tutorial down to the aspnet-codegenerator command, and I'm getting ...

Generating a new DbContext class 'BlazorWebAppMovies.Data.BlazorWebAppMoviesContext'
Attempting to compile the application in memory with the added DbContext.
Attempting to figure out the EntityFramework metadata for the model and DbContext: 'Movie'
Could not load file or assembly 'Microsoft.EntityFrameworkCore.Design, Version=9.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60'. The system cannot find the file specified.
at Microsoft.VisualStudio.Web.CodeGeneration.ActionInvoker.b__6_0()
at Microsoft.Extensions.CommandLineUtils.CommandLineApplication.Execute(String[] args)
at Microsoft.VisualStudio.Web.CodeGeneration.ActionInvoker.Execute(String[] args)
at Microsoft.VisualStudio.Web.CodeGeneration.CodeGenCommand.Execute(String[] args)

I see that the project has the package tho ...

<PackageReference Include="Microsoft.EntityFrameworkCore.Design" Version="9.0.2">
  <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
  <PrivateAssets>all</PrivateAssets>
</PackageReference>

I'll troubleshoot a bit further and report back.

[guardrex]

I found out per dotnet/efcore#26694 that the conditions must be removed from the package reference, so going from ...

<PackageReference Include="Microsoft.EntityFrameworkCore.Design" Version="9.0.2">
  <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
  <PrivateAssets>all</PrivateAssets>
</PackageReference>

... TO JUST ...

<PackageReference Include="Microsoft.EntityFrameworkCore.Design" Version="9.0.2" />

... works! 🎉

Now, I need to see how we'll address this in the article.