Cannot read property 'valid' of undefined

[worapolburaphan]

When i use select.
onChange event I get this error in log.

**Cannot read property 'valid' of undefined** 

[worapolburaphan]

Select type can use only native select element right?
I use it with Material-UI React, And not work!

[kwhitley]

@wsmd I'm undergoing the same struggles when trying to implement this with @material-ui/core/Slider - no matter which input type I use (range seems the most appropriate), there appears to be a problem with how the refs are handled, or the onChange signature or something...