On .NET 10 PR 3 MVC fails to find views

[sevinul]

Is there an existing issue for this?

• I have searched the existing issues

Describe the bug

MVC fails to find the existing index.cshtml view on runtime,

Expected Behavior

Navigate to the index.cshtml view.

Steps To Reproduce

Pull and run on .NET 10 PR3:
https://github.com/sevinul/mvc_asp.net_core_web_app
This is the standard MVC ASP.NET core web app template.

Exceptions (if any)

InvalidOperationException: The view 'Index' was not found. The following locations were searched:
/Views/Home/Index.cshtml
/Views/Shared/Index.cshtml

.NET Version

10.0.100-preview.3.25201.16

Anything else?

No response

[jamesgurung]

I am experiencing the same error in Visual Studio, since updating from .NET 10 Preview 2 to Preview 3.

At the command line, a new MVC app runs fine:

dotnet new mvc
dotnet run

However, if I then run dotnet clean and build the project using Visual Studio 17.14.0 Preview 2.0, a runtime error appears. This occurs in Debug and Release configurations, and regardless of whether the debugger is attached.

InvalidOperationException: The view 'Index' was not found. The following locations were searched:
/Views/Home/Index.cshtml
/Views/Shared/Index.cshtml

Microsoft.AspNetCore.Mvc.ViewEngines.ViewEngineResult.EnsureSuccessful(IEnumerable originalLocations)
Microsoft.AspNetCore.Mvc.ViewFeatures.ViewResultExecutor.ExecuteAsync(ActionContext context, ViewResult result)
Microsoft.AspNetCore.Mvc.ViewResult.ExecuteResultAsync(ActionContext context)
Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.g__Awaited|30_0<TFilter, TFilterAsync>(ResourceInvoker invoker, Task lastTask, State next, Scope scope, object state, bool isCompleted)
Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.Rethrow(ResultExecutedContextSealed context)
Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.ResultNext<TFilter, TFilterAsync>(ref State next, ref Scope scope, ref object state, ref bool isCompleted)
Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.InvokeResultFilters()
Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.g__Awaited|25_0(ResourceInvoker invoker, Task lastTask, State next, Scope scope, object state, bool isCompleted)
Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.Rethrow(ResourceExecutedContextSealed context)
Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.Next(ref State next, ref Scope scope, ref object state, ref bool isCompleted)
Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.InvokeFilterPipelineAsync()
Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.g__Awaited|17_0(ResourceInvoker invoker, Task task, IDisposable scope)
Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.g__Awaited|17_0(ResourceInvoker invoker, Task task, IDisposable scope)
Microsoft.AspNetCore.Authorization.AuthorizationMiddleware.Invoke(HttpContext context)
Microsoft.AspNetCore.Authentication.AuthenticationMiddleware.Invoke(HttpContext context)
Microsoft.AspNetCore.Diagnostics.DeveloperExceptionPageMiddlewareImpl.Invoke(HttpContext context)

[halter73]

I tried https://github.com/sevinul/mvc_asp.net_core_web_app out with 10.0.100-preview.6 and VS 17.14.10 and don't have any issues loading the Index view. I wonder if this has been fixed considering we haven't gotten reports of this since preview.3.

@sevinul Do you still have this problem?

[dotnet-policy-service]

Hi @@sevinul. We have added the "Needs: Author Feedback" label to this issue, which indicates that we have an open question for you before we can take further action. This issue will be closed automatically in 7 days if we do not hear back from you by then - please feel free to re-open it if you come back to this issue after that time.

[sevinul]

@halter73 : The problem is fixed on 10.0.100-preview.6 and VS 17.14.10PR1.0.