Nap time struggle

Hi all! My baby girl is 6 and a half months old. She falls asleep in her crib at night time really easily and sleeps all night long. We have a baby swing in the living room that I use for naps but she’s starting to get too big for it, so I’ve tried putting her in her crib for naps and she hates it. She just won’t settle. Any suggestions to make this transition easier?