Devart Forums

Posted: **Fri 13 Nov 2009 12:02**

I have just installed the full licensed professional version of dotConnect for Oracle. I uninstalled the trial version using the uninstaller and then ran the install for 5.25 pro. Now when I go back into VS2008 and try to run the application (built using Linq To Oracle) I get the following error:

Code: Select all

Could not load type 'Devart.Common.ProviderVersionInformation' from assembly 'Devart.Data.Oracle, Version=5.25.49.0, Culture=neutral, PublicKeyToken=09af7300eec23701'.

The stack trace:
==========

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[TypeLoadException: Could not load type 'Devart.Common.ProviderVersionInformation' from assembly 'Devart.Data.Oracle, Version=5.25.49.0, Culture=neutral, PublicKeyToken=09af7300eec23701'.]
   Devart.Data.Oracle.Linq.Provider.OracleDataSourceInfo..ctor() +0
   Devart.Data.Oracle.Linq.Provider.OracleDataSourceInfo..cctor() +21

[TypeInitializationException: The type initializer for 'Devart.Data.Oracle.Linq.Provider.OracleDataSourceInfo' threw an exception.]
   Devart.Data.Oracle.Linq.Provider.OracleDataSourceInfo.get_InvariantInfo() +0
   Devart.Data.Oracle.Linq.Provider.OracleDataProvider.get_DataSourceInfo() +5
   Devart.Data.Linq.h..ctor(DataContext A_0, MetaModel A_1) +110
   Devart.Data.Linq.DataContext.a(Object A_0, MappingSource A_1, Type A_2) +457
   Devart.Data.Linq.DataContext..ctor(String connectionString, MappingSource mapping) +50
   BI.Model.FLOPSDataContext..ctor() in C:\SubVersion\FlightOperations\BI\model\FLOPSDataContext.Designer.cs:68
   BI.BusinessInterface..ctor() in C:\SubVersion\FlightOperations\BI\BusinessInterface.cs:69
   FLOPS.Global.Session_Start(Object sender, EventArgs e) in C:\SubVersion\FlightOperations\FLOPS\Global.asax.cs:24
   System.Web.SessionState.SessionStateModule.RaiseOnStart(EventArgs e) +8776708
   System.Web.SessionState.SessionStateModule.CompleteAcquireState() +237
   System.Web.SessionState.SessionStateModule.BeginAcquireState(Object source, EventArgs e, AsyncCallback cb, Object extraData) +504
   System.Web.AsyncEventExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +66
   System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +155

I've checked the GAC and assembly versions are correct. I've also updated the references in the project.

Any help will be greatly appreciated.

Regards,

Peter.

Posted: **Mon 16 Nov 2009 11:57**

Please clear the bin and obj folders of your project, remove the references to the Devart assemblies from your project and re-add them (the 5.25.49 version of dotConnect for Oracle includes Devart.Data.dll 5.0.11.0 and Devart.Data.Oracle.dll 5.25.49.0). Rebuild your project.

Posted: **Fri 20 Nov 2009 10:45**

Cheers.

I did that and it worked. Should have thought of that sooner.

Devart Forums

Err: Could not load type 'Devart.Common.ProviderVersionInfo

Err: Could not load type 'Devart.Common.ProviderVersionInfo