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Sequence contains more than one matching element

System.InvalidOperationException: Sequence contains more than one matching element at System.RuntimeTypeHandle.GetTypeByName(String name, Boolean throwOnError, Boolean ignoreCase, Boolean reflectionOnly, StackCrawlMarkHandle stackMark, IntPtr pPrivHostBinder, Boolean loadTypeFromPartialName, ObjectHandleOnStack type) at System.RuntimeTypeHandle.GetTypeByName(String name, Boolean throwOnError, Boolean ignoreCase, Boolean reflectionOnly, StackCrawlMark& stackMark, IntPtr pPrivHostBinder, Boolean loadTypeFromPartialName) at System.Type.GetType(String typeName, Boolean throwOnError) at SystemGroup.Framework.Serialization.ReflectionExtensions.GetTypeFromSerializableForm(String serializedValue) in C:\agentB03\_work\421\s\Framework\Framework\Serialization\ReflectionExtensions.cs:line 180 at SystemGroup.Framework.Serialization.BinarySerializer.DeserializeReflectionType(Type type) in C:\agentB03\_work\421\s\Framework\Framework\Serialization\BinarySerializer.cs:line 617 at SystemGroup.Framework.Serialization.BinarySerializer.DeserializeObject() in C:\agentB03\_work\421\s\Framework\Framework\Serialization\BinarySerializer.cs:line 839 at SystemGroup.Framework.Serialization.BinarySerializer.Deserialize(Byte[] value) in C:\agentB03\_work\421\s\Framework\Framework\Serialization\BinarySerializer.cs:line 264 at SystemGroup.Framework.MetaData.MetadataService.Initialize() in C:\agentB03\_work\421\s\Framework\Framework\MetaData\Services\MetadataService.cs:line 365 at SystemGroup.Framework.MetaData.MetadataService.GetComponents() in C:\agentB03\_work\421\s\Framework\Framework\MetaData\Services\MetadataService.cs:line 290 at SystemGroup.Presentation.BackEndExtention.BackEndSegment.OnComponents(ComponentsEventArgs eventArgs) in C:\agentB03\_work\421\s\Presentation\Extensions\SystemGroup.Presentation.BackEndExtention\BackEndSegment.cs:line 298 at SystemGroup.Presentation.Engine.Infrastructures.CompositionManager.LoadComponets(IEnumerable`1 allSegments) in C:\agentB03\_work\421\s\Presentation\Engine\SystemGroup.Presentation.Engine\Infrastructures\CompositionManager.cs:line 789 at SystemGroup.Presentation.Engine.Infrastructures.CompositionManager.ImportSegments() in C:\agentB03\_work\421\s\Presentation\Engine\SystemGroup.Presentation.Engine\Infrastructures\CompositionManager.cs:line 326 at SystemGroup.Presentation.Web.Infrastructures.SGMvcApplication.TryInit() in C:\agentB03\_work\421\s\Presentation\Realization\Web\SystemGroup.Presentation.Web\Infrastructures\SGMvcApplication.cs:line 417 at SystemGroup.Presentation.Web.Infrastructures.SGMvcApplication.InitWebSegments() in C:\agentB03\_work\421\s\Presentation\Realization\Web\SystemGroup.Presentation.Web\Infrastructures\SGMvcApplication.cs:line 409 at SystemGroup.Presentation.Web.Infrastructures.SGMvcApplication.StartSession(Action`1 setSession) in C:\agentB03\_work\421\s\Presentation\Realization\Web\SystemGroup.Presentation.Web\Infrastructures\SGMvcApplication.cs:line 218 at SystemGroup.Presentation.Web.Infrastructures.SgControllerFactory.SetSessionContainer(RequestContext requestContext) in C:\agentB03\_work\421\s\Presentation\Realization\Web\SystemGroup.Presentation.Web\Infrastructures\SgControllerFactory.cs:line 108 at SystemGroup.Presentation.Web.Infrastructures.SgControllerFactory.CreateController(RequestContext requestContext, String controllerName) in C:\agentB03\_work\421\s\Presentation\Realization\Web\SystemGroup.Presentation.Web\Infrastructures\SgControllerFactory.cs:line 46