I have recently upgraded a client from NAV 5.0 to NAV 2009. They have been using outlook integration through multiple upgrades. However after this upgrade, I am getting the following error:
"An error has occurred during the synchronization process. You can find the error details in the log file. Please contact your System Administrator."
After a lot of attempts, I was able to enable the log file. The following nullreference error is listed in the log file:
Info: 10/6/2010 4:31:38 PM  Releasing Application object...
Error: 10/6/2010 4:31:38 PM  Dump of exception type 'System.NullReferenceException'
Message: Object reference not set to an instance of an object.
Stack trace: at Microsoft.Dynamics.NAV.OLSync.NAVSyncAddIn.Synchronization.MessageParser._ProcessOutlookItem(XPathNavigator outlookItemElement, SynchronizationSchema synchronizationSchema, NavisionSynchronizationEntity navisionSynchronizationEntity, OutlookSynchronizationEntity outlookSynchronizationEntity, EntryIdStorage entryIdStorage, Boolean isConflictResolution)
at Microsoft.Dynamics.NAV.OLSync.NAVSyncAddIn.Synchronization.Common._ProcessNavisionData(MemoryStream incomingStream)
at Microsoft.Dynamics.NAV.OLSync.NAVSyncAddIn.Synchronization.Common.DoSynchronization(BackgroundWorker worker, DoWorkEventArgs e)
I have tried everything that I can think of to get around this issue. Has anyone seen this or have any ideas where I can turn. If I could see the source code that produces the error, I feel like I could figure it out but I don't suppose that is possible. Any ideas would be appreciated. I have search the internet for help with no success.
Thank you in advance.