M.S.
Are you trying to put her in the crib at night or during the day? I'd transition to crib for naptime first; you may have to put her in asleep the first couple of times. Then when she's gotten comfortable with sleeping in the crib during the day, start putting her in at night.
You also need to create positive associations with the crib that overwhelm her negative association with crib/sleeping alone. a little playtime in the crib with a favorite toy, etc. maybe get your other kids to join in and keep her happy and entertained for a few minutes in the crib at a time. though I think people say that the crib should be mostly for sleeping and quiet time, I think it's OK to play a bit as well. Some babies at this age also really respond to those crib toys (Fisher Price Aquarium, for example) that play music and have soothing lights and scenes.
Good luck!