install libforms-dev libdbd-mysql-ruby libxmp2 libinline-octave-perl libgnomeada2-dev Building the package cache... Initializing package resolver and worker... E: invalid version string '0.78_02-1' W: error while parsing a version for the package 'perl-modules' Scheduling requested actions... Resolving possible unmet dependencies... W: version string 'M17-1': first upstream character 'M' is not a digit W: version string 'M17-1': first upstream character 'M' is not a digit W: some solutions were dropped, you may want to increase the value of the 'cupt::resolver::max-solution-count' option E: unable to resolve dependencies, because of: libbonobo2-dev 2.14.0-3 depends on 'liborbit2-dev (>= 1:2.12.4)' -> no solutions liborbit2-dev 1:2.12.2-1 depends on 'liborbit2 (= 1:2.12.2-1)' -> removed liborbit2-dev libgnomeada-2.8 2.8.1-5 depends on 'liborbit2 (>= 1:2.14.1)' -> installed liborbit2 1:2.14.3-0.2 libgnomeada2-dev 2.8.1-5 depends on 'libgnomeada-2.8 (= 2.8.1-5)' -> installed libgnomeada-2.8 2.8.1-5 libbonobo2-dev 2.8.1-2 depends on 'libbonobo2-0 (= 2.8.1-2)' -> installed libbonobo2-dev 2.14.0-3 libgnomeada-2.8 2.8.1-5 depends on 'libbonobo2-0 (>= 2.13.0)' -> installed libbonobo2-0 2.14.0-3 libgnomeada2-dev 2.8.1-5 depends on 'libgnomeada-2.8 (= 2.8.1-5)' -> installed libgnomeada-2.8 2.8.1-5 E: error performing the command 'install'