# Ubuntu – How to solve dpkg-source source problem when building a package

backportcompilingdpkgpackaging

Has anyone here had some experience creating a Debian / Ubuntu package? I am trying to backport the lammps package (http://packages.ubuntu.com/quantal/lammps) from Ubuntu 12.10 (Quantal) to Ubuntu 12.04

I only need it unofficially – just need a .deb package for convenience's sake when creating custom virtual machine images for deployment to IaaS platform.

Following the Ubuntu Packaging Guide at https://wiki.ubuntu.com/PackagingGuide , I can build successfully, except when I try to rebuild using the debuild command, I usually get this error:

 dpkg-source: error: aborting due to unexpected upstream changes, see
/tmp/lammps_0~20120615.gite442279-1.diff.aie32n dpkg-source: info: you
can integrate the local changes with dpkg-source --commit
dpkg-buildpackage: error: dpkg-source --include-binaries -i -b
lammps-0~20120615.gite442279 gave error exit status 2


Running 'make clean-all' at the src directory still does not solve the problem. Is there any way to completely clean off all the files that were generated during the build process, or to ask debuild to ignore any differences in the source files?

• This means you have applied changes to the unpacked upstream source which are not part of a patch in the debian/patches/ directory, or listed in the series file in there if they are; and/or there is some inconsistency in the state of quilt's application of the patches.