How old is the kid and what is he/she doing that indicates dislike? For a school-age to kid, it can often be coming to dislike the nanny because typically their time with the nanny comes at that part of the day when they are emotionally and physically drained from school and the nanny is the person who makes them do their homework, clean their room, etc. and then mom and dad come home and have fun family time. So the nannies time with them is associated with work and with missing parents. If that sounds like the case for you, you might take the summer to really set them up for success by building some positive experiences for them together. Come up with some outings that you know your kid will love and give them a chance to bond with the nanny by getting out of their normal routine

Give the nanny your complete support and let your child know that you do. Never second guess her or bad mouth her in front of your child. Tell you child that you are sorry that he feels that way when he complains about her but that nanny is doing what you want her to do.

Then give it time. If you hired a good nanny, she will find a way into his heart.

I'd tell my kid to build a bridge and get over it. Just like you might get a teacher you don't like, you might get a nanny you don't like.

And I'd give the nanny tips to help things along. Like "Larla did her own ponytail this morning; she's very proud of it" so the nanny could then say "Hey Larla, love your pony today!"

They need more time to get to know each other.
Help the nanny bond by maybe taking your kid to one of his favorite places, do a fun outing.
It sometimes takes time to warm up to one another

Nanny.

When your kid doesn't like the nanny and you know the nanny is good and not doing anything to deserve the dislike?