[MusicStore]: Identity throws a MissingManifestResourceException on coreclr

[Praburaj]

For example try to simulate the condition when you try to register the same user for the second time. In net45 it throws a proper error message. In CoreClr I get the following exception. Probably something wrong when it tries to read the resource string.

An unhandled exception occurred while processing the request.

MissingManifestResourceException: Could not find any resources appropriate for the specified culture or the neutral culture. Make sure "Microsoft.AspNet.Routing.Resources.resources" was correctly embedded or linked into assembly "Microsoft.AspNet.Identity" at compile time, or that all the satellite assemblies required are loadable and fully signed.
System.Resources.ManifestBasedResourceGroveler.HandleResourceStreamMissing(String fileName)

Stack Query Cookies Headers Environment
MissingManifestResourceException: Could not find any resources appropriate for the specified culture or the neutral culture. Make sure "Microsoft.AspNet.Routing.Resources.resources" was correctly embedded or linked into assembly "Microsoft.AspNet.Identity" at compile time, or that all the satellite assemblies required are loadable and fully signed.
System.Resources.ManifestBasedResourceGroveler.HandleResourceStreamMissing(String fileName)
System.Resources.ManifestBasedResourceGroveler.GrovelForResourceSet(CultureInfo culture, Dictionary`2 localResourceSets, Boolean tryParents, Boolean createIfNotExists, StackCrawlMark& stackMark)
System.Resources.ResourceManager.InternalGetResourceSet(CultureInfo requestedCulture, Boolean createIfNotExists, Boolean tryParents, StackCrawlMark& stackMark)
System.Resources.ResourceManager.InternalGetResourceSet(CultureInfo culture, Boolean createIfNotExists, Boolean tryParents)
System.Resources.ResourceManager.GetString(String name, CultureInfo culture)
Microsoft.AspNet.Identity.Resources.get_DuplicateName()
Microsoft.AspNet.Identity.UserValidator`1.<ValidateUserName>d__1.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
System.Runtime.CompilerServices.TaskAwaiter.GetResult()