Notes error: One or more of the source document's attachment are missing. Run F

  Notes error: One or more of the source document's attachment are missing. Run Fixup to delete the document in the source database.

I am getting the above error when trying to create a new database in an agent.

dbnew = db.createFromTemplate("", newdb.nsf, False)

i used this very agent few days before it worked perfectly then,i cant guess whats the problem.

 Thanks in advance for any help.