FileInput - failed prop type of removeIcon

[PawelSuwinski]

Using custom removeIcon in FileInput triggers such warning on the console:

Warning: Failed prop type: Invalid prop removeIcon of type object supplied to FileInputPreview, expected a single ReactElement.

ex.

import CloseIcon from "@mui/icons-material/Close";
(...)
     <FileInput removeIcon={CloseIcon} />

Steps to reproduce:

https://stackblitz.com/edit/github-qjhrzz?file=src%2Fposts%2FPostCreate.tsx

1. Use project preview and open Console at Developers Tools
2. Add a file (PDF-Template)

It looks like a wrong prop type:

react-admin/packages/ra-ui-materialui/src/input/FileInputPreview.tsx

Line 53 in c606084

removeIcon: PropTypes.element,

Shouldn't be?

FileInputPreview.propTypes = {
   (...)
    removeIcon: PropTypes.elementType,
}

[djhi]

Indeed, thanks for the report!