Error: Element ref was specified as a string

[Method42]

Hello, i try to do that :
allCrowdSourced = crowdSource.map((id,index) => ({
"EAN": <Barcode value={id.ean} ref={id.ean + index} />
}));

and i get this error :
" Uncaught (in promise) Error: Element ref was specified as a string (260337780) but no owner was set. This could happen for one of the following reasons:

1. You may be adding a ref to a function component
2. You may be adding a ref to a component that was not created inside a component's render method
3. You have multiple copies of React loaded "

if someone can explain me what's wrong with the component.
if i do not pass ref in Barcode i've got the same error.

Thx for help

[d-spiridonov]

have the same error, any updates on this?