There should be a file /etc/apt/sources.list.d/apt-build.list . Open it with e.g. gedit:
gksudo gedit /etc/apt/sources.list.d/apt-build.list Then change the line deb file:/var/cache/apt-build/repository apt-build main to deb [arch=amd64] file:/var/cache/apt-build/repository apt-build main Finally run apt-build again and check if it works. (I doubt this will solve you issue though but will check if non- multiarch apt-build repository causes the build error.) If it doesn't work, please show your /etc/apt/sources.list (attach it to this bug) or manually verify you have deb-src entries enabled and can do a `apt-get source PACKAGE` -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1222758 Title: cannot build To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/apt-build/+bug/1222758/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs