Frank, what version of Ubuntu are you running?
And you didn't quite follow the procedure to make your debdiff, as decribed at https://wiki.ubuntu.com/Bugs/HowToFix .
I think the last procedure would be something like debdiff tuxmath_1.7.2-1.dsc tuxmath_1.7.2-1ubuntu1.dsc > tuxmath_1.7.2-1ubuntu1.debdiff
Frank, what version of Ubuntu are you running?
And you didn't quite follow the procedure to make your debdiff, as decribed at https:/ /wiki.ubuntu. com/Bugs/ HowToFix .
I think the last procedure would be something like debdiff tuxmath_1.7.2-1.dsc tuxmath_ 1.7.2-1ubuntu1. dsc > tuxmath_ 1.7.2-1ubuntu1. debdiff