Cannot open DBM /mead/etc/enidf

Error while using MEAD for Text Mining

Can't open idf: Inappropriate file type or formatCannot open DBM mead/etc/enidf at mead/bin/../lib/Essence/IDF.pm line 44.

Solution:

cd $MEAD_HOME/etc/
rm -rf enidf
cat enidf.txt | ../bin/write-idf.pl enidf