Bulk check in fails

Hi,

I am trying to bulk check in some SolidWorks drawings using theVaultAdmin tool but the check in keeps failing. See below examplelog file output:

>> Checking In File 'EU009.SLDDRW', Revision 'A', Status'Approved', Number '', Description '', Project 'EU Drawings', Path'C:\\SolidWorks WIP\\EU\\EU009.SLDDRW'
ERROR: Failed on check in of document "EU009.SLDDRW".
Check In aborted!
ERROR: Unknown error checking in 'EU009.SLDDRW'.

As you can see the log file is not particularly helpful when itcomes to working out the problem...

I can still check in files through SolidWorks and the SolidWorksExplorer.

I have recently bulk checked in other similar files in exactly thesame way and that worked fine. Has this happened to anyone else?

Many thanks,
JackSolidworksWorkgroup Pdm