[Solved] Error after upgrading to version 2012.1.301

[test]

Hi,

I've a project which use version 2011.3.1116 of open access ORM. After I upgrade it to version 2012.1.301, I've this error when I use the function SaveChange() of my open access context. Here's my code :

B2BModel oContext = (B2BModel)HttpContext.Current.Session[SCOPE_KEY];
oContext.SaveChanges();

Here's the error :

[OpenAccessException: Application id class 'Telerik.OpenAccess.RT.OID.LongIdentity' must have field: 'public System.Int64 _id']
   OpenAccessRuntime.ExceptionWrapper.Throw() +13
   OpenAccessRuntime.storagemanager.StorageManagerFactoryBuilder.createSmfForURL() +691
   OpenAccessRuntime.storagemanager.StorageManagerFactoryBuilder.createStorageManagerFactory() +370
   OpenAccessRuntime.DataObjects.PersistenceManagerFactoryImp.createStorageManagerFactory() +454
   OpenAccessRuntime.DataObjects.PersistenceManagerFactoryBase.init() +835
   OpenAccessRuntime.DataObjects.PersistenceManagerFactoryImp.init() +55
   OpenAccessRuntime.DataObjects.BootstrapPMF.getPersistenceManagerFactory(PropertySet props) +272
   OpenAccessRuntime.Helper.getPersistenceManagerFactory(PropertySet props) +504
   OpenAccessRuntime.DatabaseAdapter.AssertPersistenceManagerFactory(String usr, String password, Boolean open) +1493
   OpenAccessRuntime.DatabaseAdapter.GetObjectScope(TransactionProvider provider) +38
   Telerik.OpenAccess.Database.GetObjectScope(TransactionProvider provider) +26
   Telerik.OpenAccess.OpenAccessContextBase.GetScope() +56
   Telerik.OpenAccess.OpenAccessContextBase.SaveChanges(ConcurrencyConflictsProcessingMode failureMode) +13
   IT.B2B.Modules.ContextModule.context_PostRequestHandlerExecute(Object sender, EventArgs e) in C:***:54
   System.Web.SyncEventExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +80
   System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +171

I dont understand what's happening. I try to open my model and save it in the designer to compile my assembly but no change. I delete all old assemblies of OpenAccess no change too. Don't know where the problem come from.

Thanks for your help...

[test]

Problem solved.

There was an assembly (Telerik.OpenAcess.dll) with the wrong version in the bin directory.