Gnome Do Bibtex plugin cannot parse pdf path

Seems like the .bib file should contain a file = {} entry.
My .bib file had a pdf = {} entry for all files. So I defined a new field in my .bib file and copied pdf = {} entries to file = {}.
Then I restarted my gnome-do.

The plugin now works like a charmm!!

In fact here is the python script I used to convert my old bib file

#!/usr/bin/python
# program to add file = {} field to a .bib file
# This will copy the entry of pdf = {} field to file = {}
#

filep = open("complete_ref.bib")
fileo = open("new_complete_ref.bib","w")

count = 0
count_entry = 0
for line in filep:

    try:
        if line[0] == "@":
            count_entry += 1

        if line.split("=")[0].strip() == "pdf" :
            count += 1
            fileo.write(" file ="+line.split("=")[1])

        print "total entries, entries with files = ", count_entry, count

    except:
        pass

    fileo.write(line)