Can't use React Fragments.
Default babel config
React Fragments should be supported by default.
Using Fragments will make babel throw error

should set the pragmaFrag for React.
In the meantime adding this to your babel plugins solves it:
["@babel/plugin-transform-react-jsx", {
"pragmaFrag": "React.Fragment"
}]
Most helpful comment
In the meantime adding this to your babel plugins solves it: