Does BasicTextField, TextField or OutlinedTextfield have a mechanism for showing error message similar to what is achieved using TextView's setError() and getError()?

They have isError attribute

Yes, I can set the isError parameter, but it does not set the error message.

:/

We implemented our own

TextField

on top of

BasicTextField

to show the error message (and others).

Why didn't you implement it on to of material TextField?

Because we have a completely different look than the Material one. If it’s not your case, maybe you can reuse the Material

TextField

and show the error on top of it.