Helping a 2 yr old adjust to a move and new room?

My daughter, her fiance and their 2 yr old daughter just moved in with me for financial reasons. How can we best acclimate my granddaughter to having a new room. She's not wanting any part of it because it's not what she's used to, obviously, even though we have her things in there. I hesitate to let her cry it out because everything in her little life has suddenly changed. Any suggestion would be welcomed. Thank you.