2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/77819We consider partial liftings of maps at fibrations and compare the primary obstruction to extend the lifting with the obstruction to extend the lifting as a simple map into the total space. A relation between these two obstructions is proved for the case when the fiber is an Eilenberg-MacLane space. Furthermore it is shown that this result specialises to well known facts about secondary obstructions.LaTeX, 9 pages. To appear in Top. ApplAlgebraic Topology55S35 (Primary) 55S40 (Secondary)text