Build a Blazor movie database app (Part 2 - Add and scaffold a model) dotnet ef migrations add InitialCreate gives error

[xompax]

Description

Hello Microsoft ASP.NET Core docs team and contributors,

While running through the "Build a Blazor movie database app" (Part 2 - Add and scaffold a model) I am recieving an error.

Specifically when running the following line:

dotnet ef migrations add InitialCreate gives error

I get the following error:

Build started...
Build failed. Use dotnet build to see the errors.

Also when viewing the file Components/Pages/MoviePages/Index.razor, I get the following text in Visual Studio Code when hovering over line 3

@using Microsoft.AspNetCore.Components.QuickGrid

which reads:

The type or namespace name 'QuickGrid' does not exist in the namespace 'Microsoft.AspNetCore.Components' (are you missing an assembly reference?)[CS0234](https://msdn.microsoft.com/query/roslyn.query?appId=roslyn&k=k(CS0234))

I am not sure what I am doing wrong. I also tried installing various packages, and tried using .NET 8.0 and .NET 9.0 and have similar issues with each (at least I tried uninstalling the dotnet-sdk-8.0 and installing the dotnet-sdk-9.0 packages). See the attached log.txt from my Visual Studio Code terminal page.

log.txt

I am running on Fedora Linux XFCE version 42 x86_64 and using the latest version of the Visual Studio Code IDE I installed from the Microsoft RPM package repository from these instructions: https://code.visualstudio.com/docs/setup/linux#_rhel-fedora-and-centos-based-distributions

Thanks in advance for any help and guidance!

Page URL

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

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

Platform Id

ef97ed5a-9570-fb55-a33b-46ed7e991772

Article author

@guardrex

Metadata

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

Related Issues

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[guardrex]

Hello @xompax ... I have a feeling that this is going to be related to ...

I am running on Fedora Linux XFCE version 42 x86_64

I never tested using Linux. I'm on Windows, so the .NET CLI commands were only tested on Windows.

I'm not sure how the shell on Linux works compared to Windows. The command that would add the QuickGrid package is added via ...

dotnet add package Microsoft.AspNetCore.Components.QuickGrid

... so I would think that the problem here has to do with these commands running.

For the set of CLI commands that the article has you paste in all at once ...

dotnet tool install --global dotnet-aspnet-codegenerator
dotnet tool install --global dotnet-ef
dotnet add package Microsoft.EntityFrameworkCore.SQLite
dotnet add package Microsoft.VisualStudio.Web.CodeGeneration.Design
dotnet add package Microsoft.EntityFrameworkCore.SqlServer
dotnet add package Microsoft.EntityFrameworkCore.Tools
dotnet add package Microsoft.AspNetCore.Components.QuickGrid
dotnet add package Microsoft.AspNetCore.Components.QuickGrid.EntityFrameworkAdapter
dotnet add package Microsoft.AspNetCore.Diagnostics.EntityFrameworkCore

... did you try running those one at a time? If you didn't try that, do it and see if each command executes correctly. If that turns out to be the case ... if a LInux shell won't run them all when they're all pasted at once ... then I'll need to call that out in the article.

If you have tried to run them one at a time and they all execute but the app still fails with that error, then I think we have a tooling or framework problem with Linux here.