"Path is empty" error when scaffolding in a project that references Microsoft.AspNetCore.Identity

[Extragorey]

Issue

The following error is thrown when running the command dotnet aspnet-codegenerator identity -lf.
The same error (sans stack trace) also occurs when attempting to scaffold any view via the IDE context menu.

[Trace]: Command Line: identity -lf
    Building project ...
    [Trace]: Command Line: --no-dispatch --port-number 64193 identity -lf --dispatcher-version 6.0.0+cc9d1f5236d926269a0471042f72bf83b498509c
    Scaffolding failed.
    The path is empty. (Parameter 'path')
    [Trace]:    at System.IO.Path.GetFullPath(String path)
       at System.IO.Enumeration.FileSystemEnumerator`1..ctor(String directory, Boolean isNormalized, EnumerationOptions options)
       at System.IO.Enumeration.FileSystemEnumerable`1..ctor(String directory, FindTransform transform, EnumerationOptions options, Boolean isNormalized)
       at System.IO.Enumeration.FileSystemEnumerableFactory.UserFiles(String directory, String expression, EnumerationOptions options)
       at System.IO.Directory.InternalEnumeratePaths(String path, String searchPattern, SearchTarget searchTarget, EnumerationOptions options)
       at Microsoft.VisualStudio.Web.CodeGeneration.Msbuild.ProjectContextWriter.GetScaffoldingAssemblies(IEnumerable`1 dependencies)
       at Microsoft.DotNet.Scaffolding.Shared.ProjectModel.ProjectContextExtensions.AddPackageDependencies(IProjectContext projectInformation, String projectAssetsFile)
       at Microsoft.VisualStudio.Web.CodeGeneration.Design.Program.<>c__DisplayClass4_0.<<Execute>b__0>d.MoveNext()
    RunTime 00:00:02.43

Reproduction Steps

1. Create a new project using the template "ASP.NET Core Web App (Model-View-Controller)" targeting .NET 6.0 and with the authentication type set to Individual Accounts.
2. Add the following Nuget package:
   • Microsoft.VisualStudio.Web.CodeGeneration.Design (to support scaffolding)
3. Save all files (Ctrl + Shift + S) and rebuild the solution.
4. At this point, open cmd to the project file's directory and run dotnet aspnet-codegenerator identity -lf to ensure the list of available Identity views for scaffolding is shown successfully.
5. Add the following Nuget package:
   • Microsoft.AspNetCore.Identity
6. Save all files (Ctrl + Shift + S) and rebuild the solution.
7. Try to re-run the command dotnet aspnet-codegenerator identity -lf and the above error should occur.

Environment Info

Target framework: .NET 6.0
IDE: Visual Studio 2022 17.0.1
Operating system: Windows Server 2016 Standard

Issue originally posted on StackOverflow (by me).

[anghelvalentin]

I have the same issue. Did you manage to solve it?

[Extragorey]

Yup, don't reference Microsoft.AspNetCore.Identity. xD But it wasn't actually required as a direct reference in my case; I could install the Microsoft.AspNetCore.Identity.EntityFrameworkCore nuget package instead, and that worked.

…

On Sat, 8 Jan 2022 at 18:40, Valentin Anghel ***@***.***> wrote: I have the same issue. Did you manage to solve it? — Reply to this email directly, view it on GitHub <#1713 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AC2D6A3JXMBBFLKVENXA3KTUU72ATANCNFSM5I56Y6HQ> . Triage notifications on the go with GitHub Mobile for iOS <https://apps.apple.com/app/apple-store/id1477376905?ct=notification-email&mt=8&pt=524675> or Android <https://play.google.com/store/apps/details?id=com.github.android&referrer=utm_campaign%3Dnotification-email%26utm_medium%3Demail%26utm_source%3Dgithub>. You are receiving this because you authored the thread.Message ID: ***@***.***>

[anghelvalentin]

I have written a tutorial about adding identity to an existing ASP.NET application and I have also presented the solution for this bug https://programmingcsharp.com/implement-identity-on-existing-asp-project/

[JRoxellin]

anghelvalentin muchas gracias me salvaste la vida ese error tan pequeño me llevo a perder la cabeza muchas graciassss