Suddenly hates her crib?


This is one tired Mama! My 16-month-old was such a good sleeper up until a week ago!! she would sleep 10 hours in her crib no problem even naps in her crib and all of a sudden the second I put her in her crib she starts screaming bloody murder ..I've tried a night light, I've tried Mickey Mouse on the iPad , I've tried rocking her to sleep and then putting her in the crib ( but she instantly wakes up freaking out ) .. I tried the cry it out method which I hate doing and she cried for an hour and I just couldn't take anymore it broke my heart so I had to bring her in bed with us.. but I do not want to make this a habit !! is anyone else going through this if so any tips??? TIA!!