Got Cannot read property '@@toStringTag' of undefined

[wmertens]

Somehow, this line is executed when propValue is undefined:

prop-types/factoryWithTypeCheckers.js

Line 508 in 48eb8fa

if (propValue['@@toStringTag'] === 'Symbol') {

It would be good to put a guard and a warning?

[ljharb]

@wmertens do you have any more information? I can't figure out how to reproduce this issue.

[wmertens]

@ljharb it's being triggered by one of https://github.com/StratoKit/strato-db/blob/1f5535b0bcd0622439f6c70ed6ab2a1acac151d3/src/JsonModel.js#L28-L96

Could it be PropTypes.oneOf([false, undefined, null])?

[ljharb]

yes, that is exactly it, thank you :-) (note that oneOf can't ever match undefined or null; if it's optional they'll always be allowed, and if required they'll always be forbidden)

[ljharb]

v15.7.2 is released; please file an issue if you see any problems!