That's a pretty normal reaction for some babies when they are trying new foods. They'll get used to the taste of semi solid foods eventually.
Is your baby breastfeeding before this? Perhaps you can try adding some breastmilk to the fruit puree just so baby gets a taste of something familiar mixed with something new. That's what my friend did when she started feeding baby solids. It helped tremendously with the transition. Hope this suggestion helps :)
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