Using propTypes.any throws an error when passing strings

[robert-cnvrg]

i have a small component that accepts an icon of various types:

export default { props: { icon: propTypes.any.isRequired, }, };

when passing a string to this component i get the following warning:
[Vue warn]: Invalid prop: type check failed for prop "icon". Expected , got String with value "/packs/media/assets/icon.svg".