It means that the binary file changed at all. Source format 1.0 can't deal with this. Source format 3.0 is better, and has specific options to control behaviour here; please see the dpkg-source manual page, assuming you're running karmic or newer.
I'm leaving this bug open for the terse error message, though. ** Changed in: dpkg (Ubuntu) Importance: Undecided => Low ** Changed in: dpkg (Ubuntu) Status: New => Triaged -- "binary file contents changed" not detailed enough https://bugs.launchpad.net/bugs/389932 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs