Nie można znaleźć lub załadować zarejestrowanego dostawcy danych sieci .Net za pomocą MySql + MVC4

Question

Otrzymujemy następujący błąd, gdy próbowaliśmy uruchomić nasz projekt MVC4 z bazą danych Mysql bazy danych Azure.

W pliku web.config mamy następujące,

<DbProviderFactories> 
     <remove invariant="MySql.Data.MySqlClient" /> 
     <add name="MySQL Data Provider" invariant="MySql.Data.MySqlClient" description=".Net Framework Data Provider for MySQL" type="MySql.Data.MySqlClient.MySqlClientFactory, MySql.Data" /> 
</DbProviderFactories> 

Błąd:

Failed to find or load the registered .Net Framework Data Provider.

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.Configuration.ConfigurationErrorsException: Failed to find or load the registered .Net Framework Data Provider.

Błąd Źródło:

Line 96:    if (objectQuery != null && !string.IsNullOrEmpty(path)) 
Line 97:    { 
Line 98:     return objectQuery.Include(path); 
Line 99:    } 
Line 100: 

Source File: C:\Phase2\FreeLance\FreeLance\Framework\Data\FreeLance.Data.Framework\EntityFramework\Extensions.cs Line: 98 

Stack Trace: 


[ConfigurationErrorsException: Failed to find or load the registered .Net Framework Data Provider.] 
    System.Data.Common.DbProviderFactories.GetFactory(DataRow providerRow) +2238858 
    System.Data.EntityClient.EntityConnection.GetFactory(String providerString) +143 
    System.Data.EntityClient.EntityConnection.ChangeConnectionString(String newConnectionString) +641 
    System.Data.Entity.Internal.LazyInternalConnection.TryInitializeFromAppConfig(String name, AppConfig config) +144 
    System.Data.Entity.Internal.LazyInternalConnection.Initialize() +95 
    System.Data.Entity.Internal.LazyInternalConnection.CreateObjectContextFromConnectionModel() +16 
    System.Data.Entity.Internal.LazyInternalContext.InitializeContext() +269 
    System.Data.Entity.Internal.InternalContext.GetEntitySetAndBaseTypeForType(Type entityType) +26 
    System.Data.Entity.Internal.Linq.InternalSet`1.Initialize() +71 
    System.Data.Entity.Internal.Linq.InternalSet`1.Include(String path) +25 
    System.Data.Entity.Infrastructure.DbQuery`1.Include(String path) +111 
    FreeLance.Data.Framework.EntityFramework.Extensions.Include(IQueryable`1 source, String path) in C:\Phase2\FreeLance\FreeLance\Framework\Data\FreeLance.Data.Framework\EntityFramework\Extensions.cs:98 
    FreeLance.Data.Framework.EntityFramework.Extensions.Include(IQueryable`1 source, Expression`1 expression) in C:\Phase2\FreeLance\FreeLance\Framework\Data\FreeLance.Data.Framework\EntityFramework\Extensions.cs:64 
    FreeLance.Data.Framework.EntityFramework.Extensions.Include(IQueryable`1 source, Expression`1[] expressions) in C:\Phase2\FreeLance\FreeLance\Framework\Data\FreeLance.Data.Framework\EntityFramework\Extensions.cs:79 
    FreeLance.Data.Framework.EntityFramework.Repository`1.GetAll(Expression`1[] include) in C:\Phase2\FreeLance\FreeLance\Framework\Data\FreeLance.Data.Framework\EntityFramework\Repository.cs:89 
    FreeLance.Business.PageBC.GetPages() in C:\Phase2\FreeLance\FreeLance\Business\FreeLance.Business\Admin\PageBC.cs:49 
    FreeLance.Services.PageService.GetPages() in C:\Phase2\FreeLance\FreeLance\Services\FreeLance.Services\PageService.cs:54 
    FreeLance.Web.Helpers.DataHelper.GetAppPages() in C:\Phase2\FreeLance\FreeLance\User Interface\FreeLance.Web\Helpers\DataHelper.cs:250 
    FreeLance.Web.ResourceConfig.GetAppPages() in C:\Phase2\FreeLance\FreeLance\User Interface\FreeLance.Web\App_Start\ResourceConfig.cs:64 
    FreeLance.Web.AppConfig.Run() in C:\Phase2\FreeLance\FreeLance\User Interface\FreeLance.Web\App_Start\AppConfig.cs:55 
    FreeLance.Web.MvcApplication.Application_Start() in C:\Phase2\FreeLance\FreeLance\User Interface\FreeLance.Web\Global.asax.cs:40 

[HttpException (0x80004005): Failed to find or load the registered .Net Framework Data Provider.] 
    System.Web.HttpApplicationFactory.EnsureAppStartCalledForIntegratedMode(HttpContext context, HttpApplication app) +4054645 
    System.Web.HttpApplication.RegisterEventSubscriptionsWithIIS(IntPtr appContext, HttpContext context, MethodInfo[] handlers) +191 
    System.Web.HttpApplication.InitSpecial(HttpApplicationState state, MethodInfo[] handlers, IntPtr appContext, HttpContext context) +352 
    System.Web.HttpApplicationFactory.GetSpecialApplicationInstance(IntPtr appContext, HttpContext context) +407 
    System.Web.Hosting.PipelineRuntime.InitializeApplication(IntPtr appContext) +375 

[HttpException (0x80004005): Failed to find or load the registered .Net Framework Data Provider.] 
    System.Web.HttpRuntime.FirstRequestInit(HttpContext context) +11646640 
    System.Web.HttpRuntime.EnsureFirstRequestInit(HttpContext context) +141 
    System.Web.HttpRuntime.ProcessRequestNotificationPrivate(IIS7WorkerRequest wr, HttpContext context) +4869909 

Answer 1

Upewnij się, że zostały dodane MySQL. Data.Entity.dll & MySql.Data.dll pliki do kosza projektu MVC

Answer 2

przypadku korzystania Mono upewnij się, że również węzeł dostawcy danych MySQL w machine.config. Używam 4.5 tak dla mnie to /opt/mono/4.5/machine.config (przykład lokalizacja):

<system.data> 
    <DbProviderFactories> 
     <add name="MySQL Data Provider" invariant="MySql.Data.MySqlClient" description=".Net Framework Data Provider for MySQL" type="MySql.Data.MySqlClient.MySqlClientFactory, MySql.Data, Version=6.8.3.0, Culture=neutral, PublicKeyToken=c5687fc88969c44d" /> 
    </DbProviderFactories> 
</system.data> 

można znaleźć machine.config lokalizację wykonując proste polecenia w Linux:

cd/&& find -name 'machine.config' 

może trzeba sudo przed find polecenia na Ubuntu:

cd/&& sudo find -name 'machine.config'