Mvc: views cannot be served

Created on 29 Feb 2016 · 24Comments · Source: aspnet/Mvc

Using the current repository, run the MvcSandbox project verbatim with no changes using the following commands;

dotnet restore
dotnet build
dotnet run

You are served an error that views cannot be found, but it clearly lists the correct directories.

An unhandled exception occurred while processing the request.

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`1 originalLocations)

using dotnet version 1.0.0-beta-001540 and compiled against coreclr-1.0.0-rc2-16551x64 on Windows 10x64.

question

Source

ciel

All 24 comments

Here's the full stack trace;

System.InvalidOperationException: The view 'Index' was not found. The following locations were searched:
/Views/Home/Index.cshtml
/Views/Shared/Index.cshtml
   at Microsoft.AspNetCore.Mvc.ViewEngines.ViewEngineResult.EnsureSuccessful(IEnumerable`1 originalLocations)
   at Microsoft.AspNetCore.Mvc.ViewResult.<ExecuteResultAsync>d__26.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Microsoft.AspNetCore.Mvc.Internal.FilterActionInvoker.<InvokeResultAsync>d__44.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Microsoft.AspNetCore.Mvc.Internal.FilterActionInvoker.<InvokeResultFilterAsync>d__43.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at Microsoft.AspNetCore.Mvc.Internal.FilterActionInvoker.<InvokeAllResultFiltersAsync>d__42.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Microsoft.AspNetCore.Mvc.Internal.FilterActionInvoker.<InvokeResourceFilterAsync>d__37.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at Microsoft.AspNetCore.Mvc.Internal.FilterActionInvoker.<InvokeAsync>d__32.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Microsoft.AspNetCore.Mvc.Internal.MvcRouteHandler.<InvokeActionAsync>d__8.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Microsoft.AspNetCore.Builder.RouterMiddleware.<Invoke>d__4.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Microsoft.AspNetCore.Diagnostics.DeveloperExceptionPageMiddleware.<Invoke>d__7.MoveNext()

ciel on 29 Feb 2016

👍1

You'd need to specify the applicationbase. Here's what my powershell command looks lke: dotnet run -- --applicationbase $PWD

pranavkm on 29 Feb 2016

I'm not sure I understand. I can't find this documented anywhere.

ciel on 29 Feb 2016

Okay, I think I understand now. Is there any way to put this setting in a
file?
On Feb 28, 2016 9:50 PM, "Pranav K" [email protected] wrote:

You'd need to specify the applicationbase. Here's what my powershell
command looks lke: dotnet run -- --applicationbase $PWD

—
Reply to this email directly or view it on GitHub
https://github.com/aspnet/Mvc/issues/4189#issuecomment-190028247.

ciel on 29 Feb 2016

@ciel, there's a UseApplicationBasePath argument on IWebHostBuilder that you could use. Alternatively if your app is using a config file, you could add the applicationBase key to it.

pranavkm on 29 Feb 2016

@ciel https://github.com/aspnet/cli-samples

davidfowl on 29 Feb 2016

Was this changed yet again?

ciel on 20 Mar 2016

@ciel the name of the property changed.

davidfowl on 20 Mar 2016

So, how to set it now? August 2017 more than one year later this issue still there.

JoseFMP on 10 Aug 2017

@Jose-CF how are you seeing the issue? What does your project look like and what command did you run

davidfowl on 10 Aug 2017

To reproduce:

Create an ASP .NET project (tried several target frameworks, net461, net462, netcoreapp1.0, netcoreapp1.1, netcoreapp2.0 with same result).
Install Microsoft.AspNetCore.Mvc package (as well as it dependencies).
Create simple controller with hello world view.
Configure the server you want, several server tried to I do believe not server related... some of the ones I tried: Kerstell, IIS.
Run your app: tried different ways, through IIS, through a console launcher, using different dotnet sdk's... seems no difference.
Request your hello world controller/view: Can see with the debugger and log messages the controller is found. However when creating the view... it crashes:

System.InvalidOperationException: The view 'Index' was not found. The following locations were searched:
/Views/Home/Index.cshtml
/Views/Shared/Index.cshtml
   at Microsoft.AspNetCore.Mvc.ViewEngines.ViewEngineResult.EnsureSuccessful(IEnumerable`1 originalLocations)
   at Microsoft.AspNetCore.Mvc.ViewResult.<ExecuteResultAsync>d__26.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Microsoft.AspNetCore.Mvc.Internal.FilterActionInvoker.<InvokeResultAsync>d__44.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Microsoft.AspNetCore.Mvc.Internal.FilterActionInvoker.<InvokeResultFilterAsync>d__43.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at Microsoft.AspNetCore.Mvc.Internal.FilterActionInvoker.<InvokeAllResultFiltersAsync>d__42.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Microsoft.AspNetCore.Mvc.Internal.FilterActionInvoker.<InvokeResourceFilterAsync>d__37.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at Microsoft.AspNetCore.Mvc.Internal.FilterActionInvoker.<InvokeAsync>d__32.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Microsoft.AspNetCore.Mvc.Internal.MvcRouteHandler.<InvokeActionAsync>d__8.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Microsoft.AspNetCore.Builder.RouterMiddleware.<Invoke>d__4.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Microsoft.AspNetCore.Diagnostics.DeveloperExceptionPageMiddleware.<Invoke>d__7.MoveNext()

I tried to add different locations. I also tried to hardcode the locations. Still no matter what I tried, never finds the views.
Tried with several versions of Microsoft.AspNetCore.* seems no difference. Setting the root/application base paths seems to not to fix the issue.
Also tried in different servers with Windows and Linux, still no difference, the views cannot be found.

JoseFMP on 14 Aug 2017

👍1

If you're using Asp.Net Core< v2.0, you need to ensure you have builder.UseContentRoot(Directory.GetCurrentDirectory()) in your Program.Main. I'd recommend using the Mvc template (dotnet new mvc) and let it wire up things for you rather installing the packages piecemeal.

pranavkm on 14 Aug 2017

@pranavkm Sure.
I used the template, and also tried to do from an empty project, etc.
Sure as I said in my original message, I double check all the content root and base paths are properly set.
In addition I also tried to put hardcoded paths to the views just to check out if there is a problem with that.

But from all the permutations of workarounds and things I tried nothing works. I always get that exception. So really... to me does not look like a configuration problem but like a bug.

JoseFMP on 15 Aug 2017

@Jose-CF Could you please zip up your project that reproduces the issue and send it to us?

danroth27 on 17 Aug 2017

Sure... Where can I send it?! That said... really no magic in the project ... really empty. Please tell me an address where to send it.

By the way... same behavior with .NET Core 2.0

JoseFMP on 18 Aug 2017

Github would be best

davidfowl on 18 Aug 2017

I typed dotnet new mvc. I think it's easier if you type it. But still, I can put it in a repo if necessary.

Also tried dotnet new razor

JoseFMP on 21 Aug 2017

dotnet new razor and dotent new mvc work on my machine. Can you provide a bit more information?

davidfowl on 21 Aug 2017

@davidfowl I do believe it works in your machine. That does not really help me or anyone having this problem though ;)

So, as I stated already, when finding the view I get this exception:

System.InvalidOperationException: The view 'Index' was not found. The following locations were searched:
/Views/Home/Index.cshtml
/Views/Shared/Index.cshtml
   at Microsoft.AspNetCore.Mvc.ViewEngines.ViewEngineResult.EnsureSuccessful(IEnumerable`1 originalLocations)
   at Microsoft.AspNetCore.Mvc.ViewResult.<ExecuteResultAsync>d__26.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Microsoft.AspNetCore.Mvc.Internal.FilterActionInvoker.<InvokeResultAsync>d__44.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Microsoft.AspNetCore.Mvc.Internal.FilterActionInvoker.<InvokeResultFilterAsync>d__43.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at Microsoft.AspNetCore.Mvc.Internal.FilterActionInvoker.<InvokeAllResultFiltersAsync>d__42.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Microsoft.AspNetCore.Mvc.Internal.FilterActionInvoker.<InvokeResourceFilterAsync>d__37.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at Microsoft.AspNetCore.Mvc.Internal.FilterActionInvoker.<InvokeAsync>d__32.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Microsoft.AspNetCore.Mvc.Internal.MvcRouteHandler.<InvokeActionAsync>d__8.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Microsoft.AspNetCore.Builder.RouterMiddleware.<Invoke>d__4.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Microsoft.AspNetCore.Diagnostics.DeveloperExceptionPageMiddleware.<Invoke>d__7.MoveNext()

I tried it in Win 10 (x64), Windows Server 2016, Ubuntu, with same result unfortunately.
I tried different target frameworks, including net461, netcoreapp1.1, netcoreapp2.0 (recently) with same result unfortunately.
I also tried to hardcode the locations of the views, no luck either.

Strange, but I am not the only one experiencing it... if you google this issue you will find plenty of people stuck in this bug.

JoseFMP on 21 Aug 2017

I have the same issue as well when I after I use the MapRoute inside the Startup.cs

  routes.MapRoute(
                    name: "pagination",
                    template: "Products/Page{page}",
                    defaults: new { controller = "Product", action = "List" });

                routes.MapRoute(
                    name: "default",
                    template: "{controller=Product}/{action=List}/{id?}");
)

oldsand on 29 Aug 2017

@oldsand you're running in to a bug we introduced in 2.0. https://github.com/aspnet/Mvc/issues/6660#issuecomment-322613442 describes some workarounds.

pranavkm on 29 Aug 2017

LesingProject.zip

Hi, I have the same problem and I will be happy if someone can help me.
When I try to run the app in this location http://localhost:62657/admin/dashboard/index I got the same problem.

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

Microsoft.AspNetCore.Mvc.ViewEngines.ViewEngineResult.EnsureSuccessful(IEnumerable<string> originalLocations)
Microsoft.AspNetCore.Mvc.ViewResult+<ExecuteResultAsync>d__26.MoveNext()
System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker+<InvokeResultAsync>d__19.MoveNext()
System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker+<InvokeNextResultFilterAsync>d__24.MoveNext()
System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.Rethrow(ResultExecutedContext context)
Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.Next(ref State next, ref Scope scope, ref object state, ref bool isCompleted)
Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker+<InvokeNextResourceFilter>d__22.MoveNext()
System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.Rethrow(ResourceExecutedContext context)
Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker.Next(ref State next, ref Scope scope, ref object state, ref bool isCompleted)
Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker+<InvokeFilterPipelineAsync>d__17.MoveNext()
System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
Microsoft.AspNetCore.Mvc.Internal.ResourceInvoker+<InvokeAsync>d__15.MoveNext()
System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
Microsoft.AspNetCore.Builder.RouterMiddleware+<Invoke>d__4.MoveNext()
System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
Microsoft.AspNetCore.Diagnostics.DeveloperExceptionPageMiddleware+<Invoke>d__7.MoveNext()

shlomishemesh1 on 18 Nov 2017

@shlomishemesh1 you're commenting on a closed \ resolved issue. Could you create a new work item?

pranavkm on 20 Nov 2017

FWIW, In our case we received this error when accessing localhost:<port>/graphql even though the View/GraphQL/Index.cshtml was in the right place. We got the error because wwwroot/bundle.js and wwwroot/style.js was mistakenly not initially committed, since our .gitignore included wwwroot. Discovered it by inspecting the network traffic and seeing it was these files giving the 404 and not the Index.cshtml itself.