How to fix this dpkg-source problem?

["Shiju p. Nair" <madhu@debian.hn.org>]

When I am trying to build a package I get the following error:

[madhu@iv]$ dpkg-buildpackage -rfakeroot
.......
.......
dh_clean
 dpkg-source -b mrtg-2.10.5
dpkg-source: building mrtg using existing mrtg_2.10.5.orig.tar.gz
tar: mrtg-2.10.5/install-sh: Cannot open: File exists
tar: Error exit delayed from previous errors
dpkg-source: failure: tar -xkf - gave error exit status 2

I have no idea what causes this problem and how to fix it. Any help/advice is
appreciated.


Thanks in advance,

shiju