install libxml-filter-xslt-perl libio-socket-inet6-perl apache2-mpm-threadpool hotplug libgpewidget-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: libxfont-dev 1:1.3.3-1 depends on 'libxfont1 (= 1:1.3.3-1)' -> no solutions xfonts-utils 1:1.0.1-1 depends on 'libxfont1' -> installed libxfont1 1:1.2.2-2.etch1 xutils 1:7.1.ds.3-1 depends on 'xfonts-utils' -> installed xfonts-utils 1:1.0.1-1 x11-common 1:7.1.0-19 conflicts with 'xutils (<< 1:7.0)' -> installed xutils 1:7.1.ds.3-1 libxdmcp6 1:1.0.1-2 depends on 'x11-common (>= 1:7.0.0)' -> installed x11-common 1:7.1.0-19 libxcb1 1.1-1.2 depends on 'libxdmcp6' -> installed libxdmcp6 1:1.0.1-2 libcairo2 1.6.4-7 depends on 'libxcb1' -> installed libxcb1 1.1-1.2 libpango1.0-0 1.20.5-6 depends on 'libcairo2 (>= 1.6.4-6.1)' -> installed libcairo2 1.6.4-7 libgpewidget1 0.115-5 depends on 'libpango1.0-0 (>= 1.18.4)' -> installed libpango1.0-0 1.20.5-6 libgpewidget-dev 0.115-5 depends on 'libgpewidget1 (= 0.115-5)' -> installed libgpewidget1 0.115-5 xlibs-static-dev 1:7.1.0-19 depends on 'libxfont-dev' -> installed libxfont-dev 1:1.3.3-1 xlibs-static-dev 4.3.0.dfsg.1-14sarge7 depends on 'xfree86-common' -> installed xlibs-static-dev 1:7.1.0-19 x11-common 1:7.1.0-19 conflicts with 'xfree86-common' -> removed xfree86-common libxdmcp6 1:1.0.1-2 depends on 'x11-common (>= 1:7.0.0)' -> installed x11-common 1:7.1.0-19 libxcb1 1.1-1.2 depends on 'libxdmcp6' -> installed libxdmcp6 1:1.0.1-2 libcairo2 1.6.4-7 depends on 'libxcb1' -> installed libxcb1 1.1-1.2 libpango1.0-0 1.20.5-6 depends on 'libcairo2 (>= 1.6.4-6.1)' -> installed libcairo2 1.6.4-7 libgpewidget1 0.115-5 depends on 'libpango1.0-0 (>= 1.18.4)' -> installed libpango1.0-0 1.20.5-6 libgpewidget-dev 0.115-5 depends on 'libgpewidget1 (= 0.115-5)' -> installed libgpewidget1 0.115-5 E: error performing the command 'install'