Исправление System.Data.Entity.Core.ProviderIncompatible Exception в MVC 5 - программирование
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Исправление System.Data.Entity.Core.ProviderIncompatible Exception в MVC 5

Я создаю веб-приложение ASP.NET в mvc5, и я создал класс модели с контроллером. Мое приложение работает, но когда я хочу получить доступ к моему киноконтроллеру в url, например localhost: 1234/Movies, он генерирует исключение в моем файле MoviesController.cs

Строка подключения, которую я использую,

<connectionStrings>
    <add name="DefaultConnection" connectionString="Data Source=(LocalDb)\v11.0;AttachDbFilename=|DataDirectory|\aspnet-MvcMovie-20130819083100.mdf;Initial Catalog=aspnet-MvcMovie-20130819083100;Integrated Security=True"
      providerName="System.Data.SqlClient" />
    <add name="MovieDBContext" connectionString="Data Source=(LocalDb)\v11.0;AttachDbFilename=|DataDirectory|\Movies.mdf;User ID=sa; [email protected];" providerName="System.Data.SqlClient"/>
</connectionStrings>

Функция, генерирующая это исключение,

public ActionResult Index()
{
    return View(db.Movies.ToList());
}

Изменить сведения об исключении

Исключение типа "System.Data.Entity.Core.ProviderIncompatibleException" произошло в EntityFramework.dll, но не обрабатывалось в коде пользователя

Дополнительная информация: Произошла ошибка при получении информации о поставщике из базы данных. Это может быть вызвано Entity Framework с использованием неправильной строки подключения. Проверьте внутренние исключения и убедитесь, что строка подключения верна.

Внутренние сведения об исключении:

    System.Data.Entity.Core.ProviderIncompatibleException was unhandled by user code
  HResult=-2146233087
  Message=An error occurred while getting provider information from the database. This can be caused by Entity Framework using an incorrect connection string. Check the inner exceptions for details and ensure that the connection string is correct.
  Source=EntityFramework
  StackTrace:
       at System.Data.Entity.Utilities.DbProviderServicesExtensions.GetProviderManifestTokenChecked(DbProviderServices providerServices, DbConnection connection)
       at System.Data.Entity.Infrastructure.DefaultManifestTokenService.GetProviderManifestToken(DbConnection connection)
       at System.Data.Entity.Utilities.DbConnectionExtensions.GetProviderInfo(DbConnection connection, DbProviderManifest& providerManifest)
       at System.Data.Entity.DbModelBuilder.Build(DbConnection providerConnection)
       at System.Data.Entity.Internal.LazyInternalContext.CreateModel(LazyInternalContext internalContext)
       at System.Data.Entity.Internal.RetryLazy`2.GetValue(TInput input)
       at System.Data.Entity.Internal.LazyInternalContext.InitializeContext()
       at System.Data.Entity.Internal.InternalContext.Initialize()
       at System.Data.Entity.Internal.InternalContext.GetEntitySetAndBaseTypeForType(Type entityType)
       at System.Data.Entity.Internal.Linq.InternalSet`1.Initialize()
       at System.Data.Entity.Internal.Linq.InternalSet`1.GetEnumerator()
       at System.Data.Entity.Infrastructure.DbQuery`1.System.Collections.Generic.IEnumerable<TResult>.GetEnumerator()
       at System.Collections.Generic.List`1..ctor(IEnumerable`1 collection)
       at System.Linq.Enumerable.ToList[TSource](IEnumerable`1 source)
       at MvcMovie.Controllers.MoviesController.Index() in d:\Nimit Joshi\Websites\MvcMovie\MvcMovie\Controllers\MoviesController.cs:line 20
       at lambda_method(Closure , ControllerBase , Object[] )
       at System.Web.Mvc.ActionMethodDispatcher.Execute(ControllerBase controller, Object[] parameters)
       at System.Web.Mvc.ReflectedActionDescriptor.Execute(ControllerContext controllerContext, IDictionary`2 parameters)
       at System.Web.Mvc.ControllerActionInvoker.InvokeActionMethod(ControllerContext controllerContext, ActionDescriptor actionDescriptor, IDictionary`2 parameters)
       at System.Web.Mvc.Async.AsyncControllerActionInvoker.ActionInvocation.InvokeSynchronousActionMethod()
       at System.Web.Mvc.Async.AsyncControllerActionInvoker.<BeginInvokeSynchronousActionMethod>b__36(IAsyncResult asyncResult, ActionInvocation innerInvokeState)
       at System.Web.Mvc.Async.AsyncResultWrapper.WrappedAsyncResult`2.CallEndDelegate(IAsyncResult asyncResult)
       at System.Web.Mvc.Async.AsyncResultWrapper.WrappedAsyncResultBase`1.End()
       at System.Web.Mvc.Async.AsyncResultWrapper.End[TResult](IAsyncResult asyncResult, Object tag)
       at System.Web.Mvc.Async.AsyncControllerActionInvoker.EndInvokeActionMethod(IAsyncResult asyncResult)
       at System.Web.Mvc.Async.AsyncControllerActionInvoker.AsyncInvocationWithFilters.<InvokeActionMethodFilterAsynchronouslyRecursive>b__3c()
       at System.Web.Mvc.Async.AsyncControllerActionInvoker.AsyncInvocationWithFilters.<>c__DisplayClass45.<InvokeActionMethodFilterAsynchronouslyRecursive>b__3e()
  InnerException: System.Data.Entity.Core.ProviderIncompatibleException
       HResult=-2146233087
       Message=The provider did not return a ProviderManifestToken string.
       Source=EntityFramework
       StackTrace:
            at System.Data.Entity.Core.Common.DbProviderServices.GetProviderManifestToken(DbConnection connection)
            at System.Data.Entity.Utilities.DbProviderServicesExtensions.GetProviderManifestTokenChecked(DbProviderServices providerServices, DbConnection connection)
       InnerException: System.Data.SqlClient.SqlException
            HResult=-2146232060
            Message=A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider: SQL Network Interfaces, error: 50 - Local Database Runtime error occurred. Cannot create an automatic instance. See the Windows Application event log for error details.
)
            Source=.Net SqlClient Data Provider
            ErrorCode=-2146232060
            Class=20
            LineNumber=0
            Number=-1983577832
            Server=""
            State=0
            StackTrace:
                 at System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection, Action`1 wrapCloseInAction)
                 at System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj, Boolean callerHasConnectionLock, Boolean asyncClose)
                 at System.Data.SqlClient.TdsParser.Connect(ServerInfo serverInfo, SqlInternalConnectionTds connHandler, Boolean ignoreSniOpenTimeout, Int64 timerExpire, Boolean encrypt, Boolean trustServerCert, Boolean integratedSecurity, Boolean withFailover)
                 at System.Data.SqlClient.SqlInternalConnectionTds.AttemptOneLogin(ServerInfo serverInfo, String newPassword, SecureString newSecurePassword, Boolean ignoreSniOpenTimeout, TimeoutTimer timeout, Boolean withFailover)
                 at System.Data.SqlClient.SqlInternalConnectionTds.LoginNoFailover(ServerInfo serverInfo, String newPassword, SecureString newSecurePassword, Boolean redirectedUserInstance, SqlConnectionString connectionOptions, SqlCredential credential, TimeoutTimer timeout)
                 at System.Data.SqlClient.SqlInternalConnectionTds.OpenLoginEnlist(TimeoutTimer timeout, SqlConnectionString connectionOptions, SqlCredential credential, String newPassword, SecureString newSecurePassword, Boolean redirectedUserInstance)
                 at System.Data.SqlClient.SqlInternalConnectionTds..ctor(DbConnectionPoolIdentity identity, SqlConnectionString connectionOptions, SqlCredential credential, Object providerInfo, String newPassword, SecureString newSecurePassword, Boolean redirectedUserInstance, SqlConnectionString userConnectionOptions, SessionData reconnectSessionData)
                 at System.Data.SqlClient.SqlConnectionFactory.CreateConnection(DbConnectionOptions options, DbConnectionPoolKey poolKey, Object poolGroupProviderInfo, DbConnectionPool pool, DbConnection owningConnection, DbConnectionOptions userOptions)
                 at System.Data.ProviderBase.DbConnectionFactory.CreatePooledConnection(DbConnectionPool pool, DbConnection owningObject, DbConnectionOptions options, DbConnectionPoolKey poolKey, DbConnectionOptions userOptions)
                 at System.Data.ProviderBase.DbConnectionPool.CreateObject(DbConnection owningObject, DbConnectionOptions userOptions, DbConnectionInternal oldConnection)
                 at System.Data.ProviderBase.DbConnectionPool.UserCreateRequest(DbConnection owningObject, DbConnectionOptions userOptions, DbConnectionInternal oldConnection)
                 at System.Data.ProviderBase.DbConnectionPool.TryGetConnection(DbConnection owningObject, UInt32 waitForMultipleObjectsTimeout, Boolean allowCreate, Boolean onlyOneCheckConnection, DbConnectionOptions userOptions, DbConnectionInternal& connection)
                 at System.Data.ProviderBase.DbConnectionPool.TryGetConnection(DbConnection owningObject, TaskCompletionSource`1 retry, DbConnectionOptions userOptions, DbConnectionInternal& connection)
                 at System.Data.ProviderBase.DbConnectionFactory.TryGetConnection(DbConnection owningConnection, TaskCompletionSource`1 retry, DbConnectionOptions userOptions, DbConnectionInternal oldConnection, DbConnectionInternal& connection)
                 at System.Data.ProviderBase.DbConnectionInternal.TryOpenConnectionInternal(DbConnection outerConnection, DbConnectionFactory connectionFactory, TaskCompletionSource`1 retry, DbConnectionOptions userOptions)
                 at System.Data.ProviderBase.DbConnectionClosed.TryOpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory, TaskCompletionSource`1 retry, DbConnectionOptions userOptions)
                 at System.Data.SqlClient.SqlConnection.TryOpenInner(TaskCompletionSource`1 retry)
                 at System.Data.SqlClient.SqlConnection.TryOpen(TaskCompletionSource`1 retry)
                 at System.Data.SqlClient.SqlConnection.Open()
                 at System.Data.Entity.SqlServer.SqlProviderServices.<>c__DisplayClass2c.<UsingConnection>b__2a()
                 at System.Data.Entity.SqlServer.DefaultSqlExecutionStrategy.<>c__DisplayClass1.<Execute>b__0()
                 at System.Data.Entity.SqlServer.DefaultSqlExecutionStrategy.Execute[TResult](Func`1 func)
                 at System.Data.Entity.SqlServer.DefaultSqlExecutionStrategy.Execute(Action action)
                 at System.Data.Entity.SqlServer.SqlProviderServices.UsingConnection(DbConnection sqlConnection, Action`1 act)
                 at System.Data.Entity.SqlServer.SqlProviderServices.UsingMasterConnection(DbConnection sqlConnection, Action`1 act)
                 at System.Data.Entity.SqlServer.SqlProviderServices.GetDbProviderManifestToken(DbConnection connection)
                 at System.Data.Entity.Core.Common.DbProviderServices.GetProviderManifestToken(DbConnection connection)
            InnerException:

Мой класс DbContext:

public class MovieDBContext : DbContext
{
    public  DbSet<Movie> Movies { get; set; }
 }

Мой весь файл конфигурации:

<?xml version="1.0" encoding="utf-8"?>
<!--
  For more information on how to configure your ASP.NET application, please visit
  http://go.microsoft.com/fwlink/?LinkId=301880
  -->
<configuration>
  <configSections>
    <!-- For more information on Entity Framework configuration, visit http://go.microsoft.com/fwlink/?LinkID=237468 -->
    <section name="entityFramework" type="System.Data.Entity.Internal.ConfigFile.EntityFrameworkSection, EntityFramework, Version=6.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" requirePermission="false" />
  </configSections>
  <connectionStrings>
    <add name="DefaultConnection" connectionString="Data Source=(LocalDb)\v11.0;AttachDbFilename=|DataDirectory|\aspnet-MvcMovie-20130819083100.mdf;Initial Catalog=aspnet-MvcMovie-20130819083100;Integrated Security=True"
      providerName="System.Data.SqlClient" />
    <add name="MovieDBContext" connectionString="Data Source=(LocalDb)\v11.0;Initial Catalog=TempMovies;AttachDbFilename=|DataDirectory|\TempMovies.mdf;Integrated Security=True" providerName="System.Data.SqlClient"/>
  </connectionStrings>
  <appSettings>
    <add key="webpages:Version" value="3.0.0.0" />
    <add key="webpages:Enabled" value="false" />
    <add key="PreserveLoginUrl" value="true" />
    <add key="ClientValidationEnabled" value="true" />
    <add key="UnobtrusiveJavaScriptEnabled" value="true" />
  </appSettings>
  <system.web>
    <compilation debug="true" targetFramework="4.5.1" />
    <httpRuntime targetFramework="4.5.1" />
    <pages>
      <namespaces>
        <add namespace="System.Web.Helpers" />
        <add namespace="System.Web.Mvc" />
        <add namespace="System.Web.Mvc.Ajax" />
        <add namespace="System.Web.Mvc.Html" />
        <add namespace="System.Web.Optimization" />
        <add namespace="System.Web.Routing" />
        <add namespace="System.Web.WebPages" />
        <add namespace="MvcMovie" />
      </namespaces>
    </pages>
  </system.web>
  <system.webServer>
    <validation validateIntegratedModeConfiguration="false" />
  </system.webServer>
  <runtime>
    <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
      <dependentAssembly>
        <assemblyIdentity name="System.Web.Helpers" publicKeyToken="31bf3856ad364e35" />
        <bindingRedirect oldVersion="1.0.0.0-3.0.0.0" newVersion="3.0.0.0" />
      </dependentAssembly>
      <dependentAssembly>
        <assemblyIdentity name="System.Web.Mvc" publicKeyToken="31bf3856ad364e35" />
        <bindingRedirect oldVersion="1.0.0.0-5.0.0.0" newVersion="5.0.0.0" />
      </dependentAssembly>
      <dependentAssembly>
        <assemblyIdentity name="System.Web.WebPages" publicKeyToken="31bf3856ad364e35" />
        <bindingRedirect oldVersion="1.0.0.0-3.0.0.0" newVersion="3.0.0.0" />
      </dependentAssembly>
      <dependentAssembly>
        <assemblyIdentity name="WebGrease" publicKeyToken="31bf3856ad364e35" />
        <bindingRedirect oldVersion="1.0.0.0-1.3.0.0" newVersion="1.3.0.0" />
      </dependentAssembly>
    </assemblyBinding>
  </runtime>
  <entityFramework>
    <defaultConnectionFactory type="System.Data.Entity.Infrastructure.SqlConnectionFactory, EntityFramework" />
    <providers>
      <provider invariantName="System.Data.SqlClient" type="System.Data.Entity.SqlServer.SqlProviderServices, EntityFramework.SqlServer" />
    </providers>
  </entityFramework>
</configuration>
4b9b3361

ОТВЕТЫ

Ответ 1

используйте правильную строку подключения, как указано в учебнике:

<add name="MovieDBContext" 
   connectionString="Data Source=(LocalDB)\v11.0;AttachDbFilename=|DataDirectory|\Movies.mdf;Integrated Security=True" 
   providerName="System.Data.SqlClient" 
/>

Вероятно, проблема с вашей аутентификацией с пользователем sa.

//Update

Я только что установил VS 2013 на своем DevVM (Server 2008R2) Я создал проект Asp.Net MVC 5 и использовал nuget для добавления Entity Framework в проект. После этого я создал модели и добавил строку соединения в web.config Затем я нажал на элементы управления → add → scaffold, выберите контекст и имя модели данных, нажмите "Добавить", а затем запустите проект. Работает как шарм. Все функции CRUD работают.

Ответ 2

Мой LocalDB удален. Я воссоздал его, и мой проект теперь работает успешно. Спасибо всем, кто поддержал меня.

Ответ 3

> Here EmployeeDetail is a table name and Employee is a model name.  And
> ID,Branch,Salary and UID is a table field


  public ActionResult Index()
                {
                    List<EmployeeDetail> employees = context.EmployeeDetails.ToList();
                    List<Employee> emp = new List<Employee>();
                    foreach(EmployeeDetail item in employees)
                    {
                        emp.Add(new Employee
                            {
                                ID=Convert.ToInt32(item.ID),
                                Branch=item.Branch,`enter code here`
                                Salary=Conve`enter code here`rt.ToInt32(item.Salary),
                                UID = Convert.ToInt32(item.ID),
                            });
                    }
                    return View(emp);
                }



>  view page code


    <div style="font-family:Arial">
        <h2>Index</h2>

        <ul>
            @foreach (var emp in Model)
            {
                <li>
                    @Html.ActionLink(emp.Branch, "Details", new { id = emp.ID });
                </li>
            }

        </ul>
    </div>

Ответ 4

не использовать "." для определения dbserver. используйте полное имя машины

Ответ 5

Я считаю, что это вызвано двумя строками соединения... была та же проблема и избавиться от помощи.

Ответ 6

Позаботьтесь о том, чтобы у вас также были некоторые файлы user.config, которые отклонились от пути вашего приложения.

C:\Users\USERNAME\AppData\Local\PROJECTNAME_vs_Url_a2dblg5lbsfkc1adurpcald1inggdlg1\