خطای کار با Identity asp.net mvc

An unhandled exception occurred while processing the request.  
InvalidOperationException: Unable to resolve service for type 'Microsoft.AspNetCore.Identity.UserManager`1\[BE.UserApp\]' while attempting to activate 'StoreFile.Controllers.Admin.AccountController'.  
Microsoft.Extensions.DependencyInjection.ActivatorUtilities.ThrowHelperUnableToResolveService(Type type, Type requiredBy)

Stack Query Cookies Headers Routing  
InvalidOperationException: Unable to resolve service for type 'Microsoft.AspNetCore.Identity.UserManager`1\[BE.UserApp\]' while attempting to activate 'StoreFile.Controllers.Admin.AccountController'.  
Microsoft.Extensions.DependencyInjection.ActivatorUtilities.ThrowHelperUnableToResolveService(Type type, Type requiredBy)  
lambdamethod42(Closure , IServiceProvider , object\[\] )  
Microsoft.AspNetCore.Mvc.Controllers.ControllerFactoryProvider+<>c**DisplayClass60.<CreateControllerFactory>g**CreateController|0(ControllerContext controllerContext)  
Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.Next(ref State next, ref Scope scope, ref object state, ref bool isCompleted)  
Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.InvokeInnerFilterAsync()  
Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.<InvokeNextResourceFilter>g**Awaited|250(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.<InvokeAsync>g**Logged|171(ResourceInvoker invoker)  
Microsoft.AspNetCore.Mvc.Infrastructure.ResourceInvoker.<InvokeAsync>gLogged|171(ResourceInvoker invoker)  
Microsoft.AspNetCore.Authorization.AuthorizationMiddleware.Invoke(HttpContext context)  
Microsoft.AspNetCore.Authentication.AuthenticationMiddleware.Invoke(HttpContext context)  
Microsoft.AspNetCore.Diagnostics.DeveloperExceptionPageMiddlewareImpl.Invoke(HttpContext context)

Show raw exception details