I share your worries because Lulube doesn't like to eat many kinds of solid foods apart from mama's milk.
For some babies, the situation will get better when he/she grows older. But there are a few which the problem will persist.
Try other kinds of food, e.g., egg yolk, yoghurt, cheese, ABC pasta mixed with sauce. If your baby likes any one of these, you can tell that it's not that baby doesn't like to eat, but she is a picky eater and chooses what to eat.