Model:SetPrimaryPartCFrame() failed because error?

I'm doing a pet hatch system with this tutorial "https://www.youtube.com/watch?v=wip3VN-LUA0"and get the error Model: SetPrimaryPartCFrame () failed because no PrimaryPart has been set, or the PrimaryPart no longer exists. Please set Model.PrimaryPart before using this. - Client - LocalScript: 44

You need to click on the model (Probably the pet,) and set a primary part.

Inside of the model, there is a property called "Primary Part." Just click on it and then click on the main part of your pet.

This could have been solved with a quick google search on primary parts, please do this next time!