Royal Canin Mini Exigent - dog dry food

I have a mutt dog. She dislikes royal canin mini exigent for dog. First time she smelled it, she went away from her bowl. She has been picky eater since she turned one year old. So far she loves real meat and some ripe fruits.

My chihuahua skip the meals everytime I give royal canin exigent. I even try tooping the food with RC Coat Health for Chihuahua, but still she doesn't want it and eat only the RC coat health. I have fed her with Royal Canin for Chihuahua before, and I found it's not easy. She doesnt like the smell. Bur still she eat when she is starving. That's why I tried exigent. In fact, it is become worse with the RC exigent. Until now she do fasting when the meals is RC exigent.