Uncaught (in promise) Error: Could not find identifiable element

I am using reactjs with antd, I have a form and inside it a bunch of form.items

using a component called Radio.Group with Radio as the options,

I want to add an option for ‘other’ and when that is clicked – an input will be viewable and that will be a form.item as well.

my problem is that the rule for ‘required’ for that input form.item isn’t working and I’m getting an error –

‘Uncaught (in promise) Error: Could not find identifiable element’

anyone knows why? how do i tackle this?