First I have deleted dashboards using Force.com migration tool. I made sure there are no records in Recycle Bin. Later when I am trying to delete reports it's complaining
One or more dashboards depend on this report. Please delete the dashboard components referring to this report and try again.
I ran the Reports with Dashboards report. When I try to access the associated Dashboard component it says
The record you attempted to access has been deleted. The user who deleted this record may be able to recover it from the Recycle Bin. Deleted data is stored in the Recycle Bin for 15 days.
I am kind of stuck. Please help.