This is a major failure of your software management system. Please check for broken packages with synaptic, check the file permissions and correctness of the file '/etc/apt/sources.list' and reload the software information with: 'sudo apt-get update' and 'sudo apt-get install -f'.
Thachair mearachd mhòr ann an siostam stiùireadh a' bhathair-bhog agad. Feuch a bheil pacaidean briste ann a' cleachdadh synaptic, thoir sùil air ceadan an fhaidhle "/etc/apt/sources.list" agus a bheil e coilean agus luchdaich fiosrachadh a' bhathair-bhog a-rithist le: "sudo apt-get update' and 'sudo apt-get install -f".