Я получаю ошибку при выполнении программы MVC, исключение типа "system.data.entity.core.entitycommandexecutionexception" произошло в entityframework.sqlserver.dll

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Я создал класс сотрудник как:

[Table("tlEmployee")]
    public class Employee
    {
        public int EmployeeId { get; set; }
        public string Name { get; set; }
        public string Gender { get; set; }
        public string City { get; set; }

    }

Затем был создан класс contet для сотрудника типа:

public class EmployeeContext :DbContext
    {
        //establish a connection to the DB 
        public DbSet<employee> Employees { get; set; }
    }

Затем создается контроллер для класса employee типа:

public ActionResult Details(int id)
        {
            EmployeeContext employeeContext = new EmployeeContext();
            Employee employee= employeeContext.Employees.Single(emp=>emp.EmployeeId==id);

            return View(employee);
        }

Это моя конфигурация в web.config:

<connectionstrings>
    <add name="EmployeeContext" connectionString="Server=.;database=sample;Initial Catalog=master;Integrated Security=true" providerName="System.Data.SqlClient" />

SQL таблица это:

[sample].[dbo].[tlEmployee]

Получаю ниже ошибки:

Server Error in '/WebApplication2' Application.
Invalid object name 'dbo.tlEmployee'.
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. 

Exception Details: System.Data.SqlClient.SqlException: Invalid object name 'dbo.tlEmployee'.

Source Error: 


Line 15:         {
Line 16:             EmployeeContext employeeContext = new EmployeeContext();
Line 17:             Employee employee= employeeContext.Employees.Single(emp=>emp.EmployeeId==id);
Line 18: 
Line 19:             return View(employee);

Source File: C:\Users\Suni\documents\visual studio 2015\Projects\WebApplication2\WebApplication2\Controllers\EmployeeController.cs    Line: 17 

Stack Trace: 


[SqlException (0x80131904): Invalid object name 'dbo.tlEmployee'.]
   System.Data.SqlClient.SqlConnection.OnError(SqlException exception, Boolean breakConnection, Action`1 wrapCloseInAction) +3277268
   System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj, Boolean callerHasConnectionLock, Boolean asyncClose) +791
   System.Data.SqlClient.TdsParser.TryRun(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj, Boolean& dataReady) +4927
   System.Data.SqlClient.SqlDataReader.TryConsumeMetaData() +92
   System.Data.SqlClient.SqlDataReader.get_MetaData() +102
   System.Data.SqlClient.SqlCommand.FinishExecuteReader(SqlDataReader ds, RunBehavior runBehavior, String resetOptionsString) +552
   System.Data.SqlClient.SqlCommand.RunExecuteReaderTds(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, Boolean async, Int32 timeout, Task& task, Boolean asyncWrite, SqlDataReader ds, Boolean describeParameterEncryptionRequest) +3114
   System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, String method, TaskCompletionSource`1 completion, Int32 timeout, Task& task, Boolean asyncWrite) +554
   System.Data.SqlClient.SqlCommand.RunExecuteReader(CommandBehavior cmdBehavior, RunBehavior runBehavior, Boolean returnStream, String method) +98
   System.Data.SqlClient.SqlCommand.ExecuteReader(CommandBehavior behavior, String method) +307
   System.Data.Entity.Infrastructure.Interception.InternalDispatcher`1.Dispatch(TTarget target, Func`3 operation, TInterceptionContext interceptionContext, Action`3 executing, Action`3 executed) +104
   System.Data.Entity.Infrastructure.Interception.DbCommandDispatcher.Reader(DbCommand command, DbCommandInterceptionContext interceptionContext) +505
   System.Data.Entity.Core.EntityClient.Internal.EntityCommandDefinition.ExecuteStoreCommands(EntityCommand entityCommand, CommandBehavior behavior) +37

[EntityCommandExecutionException: An error occurred while executing the command definition. See the inner exception for details.]
   System.Data.Entity.Core.EntityClient.Internal.EntityCommandDefinition.ExecuteStoreCommands(EntityCommand entityCommand, CommandBehavior behavior) +126
   System.Data.Entity.Core.Objects.Internal.ObjectQueryExecutionPlan.Execute(ObjectContext context, ObjectParameterCollection parameterValues) +1047
   System.Data.Entity.Core.Objects.ObjectContext.ExecuteInTransaction(Func`1 func, IDbExecutionStrategy executionStrategy, Boolean startLocalTransaction, Boolean releaseConnectionOnSuccess) +469
   System.Data.Entity.Core.Objects.<>c__DisplayClass7.<getresults>b__5() +205
   System.Data.Entity.SqlServer.DefaultSqlExecutionStrategy.Execute(Func`1 operation) +238
   System.Data.Entity.Core.Objects.ObjectQuery`1.GetResults(Nullable`1 forMergeOption) +349
   System.Data.Entity.Core.Objects.ObjectQuery`1.<System.Collections.Generic.IEnumerable<t>.GetEnumerator>b__0() +30
   System.Data.Entity.Internal.LazyEnumerator`1.MoveNext() +37
   System.Linq.Enumerable.Single(IEnumerable`1 source) +240
   WebApplication2.Controllers.EmployeeController.Details(Int32 id) in C:\Users\Suni\documents\visual studio 2015\Projects\WebApplication2\WebApplication2\Controllers\EmployeeController.cs:17
   lambda_method(Closure , ControllerBase , Object[] ) +141
   System.Web.Mvc.ReflectedActionDescriptor.Execute(ControllerContext controllerContext, IDictionary`2 parameters) +229
   System.Web.Mvc.ControllerActionInvoker.InvokeActionMethod(ControllerContext controllerContext, ActionDescriptor actionDescriptor, IDictionary`2 parameters) +35
   System.Web.Mvc.Async.AsyncControllerActionInvoker.<begininvokesynchronousactionmethod>b__39(IAsyncResult asyncResult, ActionInvocation innerInvokeState) +39
   System.Web.Mvc.Async.WrappedAsyncResult`2.CallEndDelegate(IAsyncResult asyncResult) +67
   System.Web.Mvc.Async.AsyncControllerActionInvoker.EndInvokeActionMethod(IAsyncResult asyncResult) +42
   System.Web.Mvc.Async.AsyncInvocationWithFilters.<invokeactionmethodfilterasynchronouslyrecursive>b__3d() +72
   System.Web.Mvc.Async.<>c__DisplayClass46.<invokeactionmethodfilterasynchronouslyrecursive>b__3f() +386
   System.Web.Mvc.Async.AsyncControllerActionInvoker.EndInvokeActionMethodWithFilters(IAsyncResult asyncResult) +42
   System.Web.Mvc.Async.<>c__DisplayClass2b.<begininvokeaction>b__1c() +38
   System.Web.Mvc.Async.<>c__DisplayClass21.<begininvokeaction>b__1e(IAsyncResult asyncResult) +186
   System.Web.Mvc.Async.AsyncControllerActionInvoker.EndInvokeAction(IAsyncResult asyncResult) +38
   System.Web.Mvc.Controller.<beginexecutecore>b__1d(IAsyncResult asyncResult, ExecuteCoreState innerState) +29
   System.Web.Mvc.Async.WrappedAsyncVoid`1.CallEndDelegate(IAsyncResult asyncResult) +65
   System.Web.Mvc.Controller.EndExecuteCore(IAsyncResult asyncResult) +53
   System.Web.Mvc.Async.WrappedAsyncVoid`1.CallEndDelegate(IAsyncResult asyncResult) +36
   System.Web.Mvc.Controller.EndExecute(IAsyncResult asyncResult) +38
   System.Web.Mvc.MvcHandler.<beginprocessrequest>b__5(IAsyncResult asyncResult, ProcessRequestState innerState) +44
   System.Web.Mvc.Async.WrappedAsyncVoid`1.CallEndDelegate(IAsyncResult asyncResult) +65
   System.Web.Mvc.MvcHandler.EndProcessRequest(IAsyncResult asyncResult) +38
   System.Web.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +399
   System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +137

Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.6.114.0

Что я уже пробовал:

Я попытался снять установку и переустановить EntityFramewor, но безуспешно.
Проверил соглашения об именах, но безрезультатно.

Не могли бы вы, пожалуйста, кто-нибудь помочь мне в решении этого вопроса?

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