Your dapper install installed the security version which is newer than the version in edgy. If you downgrade libkrb53 to the version in edgy you should be able to install libkrb5-dev: sudo apt-get install libkrb53=1.4.3-5
-- dependency mismatch with libkrb5-dev/libkrb53 https://launchpad.net/bugs/59364 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs