Error in workflow : Record has links

Hi,

One of the record went into error at last step of workflow (step name :stop where it checks in the record). Now the record is still checked out and when I try to cancel /roll back/delete, every time it shows error "record has links". I have verified many times and there is no link of this record any where.

Can any one help me to get this record out of workflow/checked Out ?

Thanks,

Priya