Error HRESULT E_FAIL has been returned from a call to a COM component.

[TaiBui]

Hi friends,

I am trying to convert dgn data into geodatabase, but I got this error at the below statement:

IFeatureClass myFCL = pFeatureClassContainer.get_ClassByName(inDSname.Name);

Anyone know how to fix it ?

PS: I am using Arcgis 9.3, Visual Studio 2010

Thanks and regards,