Getting this annoying message "Avoid using private types in public APIs"

Question

I seen it work in older flutter versions on Youtube. But with new flutter updates keep getting that annoying message. What do I have to do to fix it?

  _HomePageState createState() => _HomePageState();

Answer 1

This solved it

  State<HomePage> createState() => _HomePageState();

Found out from this link - https://github.com/flutter/flutter/issues/103773 mraleph