At first they don't really like it, but remember is a gradual process you don't expect them to accept it easily cos their stomach is still small. Keep trying, make the food watery for easy passage also you watch for allergies if any.

Try home made foods in puree form. Egg yolks, fish, liver etc

I have the same problem. Mine is now 6 mths. I noticed he prefers our own food especially swallow, that's what we give him but he has lost weight cos he doesn't eat much. I've tried pureeing potatoes and carrots with minced meat he accepted that one too