Some packages could not be installed. This may mean that you have requested an impossible situation or if you are using the unstable distribution that some required packages have not yet been created or been moved out of Incoming.
Methwyd sefydlu rhai pecynnau. Gall hyn olygu eich bod chi wedi gofyn am sefyllfa amhosib neu, os ydych chi'n defnyddio'r dosraniad ansefydlog, fod rhai pecynnau angenrheidiol heb gael eu creu eto neu heb gael eu symud allan o Incoming.