I am looking for help with a content deployment error that I keep getting.  Another company built out a solution for my current client, and I'm stuck deploying it.  It uses event handlers heavily, and one in particular is causing me much grief.  it appears not to be able to validate the assembly which is verified to be in the GAC.  I am assured that the assembly is not dependent on any external assemblies.  Please help!

 Error Message:

[4/3/2008 10:03:35 AM]: Progress: Importing Role Assignment for Customsite.
[4/3/2008 10:03:35 AM]: FatalError: Could not load file or assembly 'OCR_Process_EventHandler, Version=1.0.0.0, Culture=neutral, PublicKeyToken=0da117b2de34d290' or one of its dependencies. The system cannot find the file specified.
   at Microsoft.SharePoint.SPEventReceiverDefinition.ValidAssembly()
   at Microsoft.SharePoint.SPEventReceiverDefinition.ValidReceiverFields()
   at Microsoft.SharePoint.SPEventReceiverDefinition.UpdateInternal(Boolean isMigration)
   at Microsoft.SharePoint.Deployment.EventReceiverSerializer.UpdateEventReceiver(SPEventReceiverDefinition eventReceiver, XmlElement eventReceiverData, SPImportSettings settings)
   at Microsoft.SharePoint.Deployment.EventReceiverSerializer.SetObjectData(Object obj, SerializationInfo info, StreamingContext context, ISurrogateSelector selector)
   at Microsoft.SharePoint.Deployment.WebSerializer.UpdateEventReceivers(SPWeb web, SerializationInfoHelper infoHelper, StreamingContext context, ISurrogateSelector selector)
   at Microsoft.SharePoint.Deployment.WebSerializer.SetObjectData(Object obj, SerializationInfo info, StreamingContext context, ISurrogateSelector selector)
   at Microsoft.SharePoint.Deployment.XmlFormatter.ParseObject(Type objectType, Boolean isChildObject)
   at Microsoft.SharePoint.Deployment.XmlFormatter.DeserializeObject(Type objectType, Boolean isChildObject, DeploymentObject envelope)
   at Microsoft.SharePoint.Deployment.XmlFormatter.Deserialize(Stream serializationStream)
   at Microsoft.SharePoint.Deployment.ObjectSerializer.Deserialize(Stream serializationStream)
   at Microsoft.SharePoint.Deployment.ImportObjectManager.ProcessObject(XmlReader xmlReader)
   at Microsoft.SharePoint.Deployment.SPImport.DeserializeObjects()
   at Microsoft.SharePoint.Deployment.SPImport.Run()