Hi Gianfranco and all,
http://debomatic-amd64.debian.net/distribution#unstable/eviacam/2.0.3-1/ buildlog extract the tarball with the debian directory, run dpkg-buildpackage -S -sa then pbuilder-dist sid create pbuilder-dist sid build eviacam_version.dsc and you will reproduce the issue. Probably you are not running a clean sid environment.
I've added the fix suggested by Alex and now pbuilder-dist sid build eviacam_version.dsc works fine for me. Regards, Cesar