Warning with Flutter 3.0.0

[leenorshn]

Hello Sir! There is an issue when I try to run my old project after migrate it on flutter version 3.0.0, it seams that the warning come from animator.

has type 'widgetsbinding' which excludes null. - 'widgetsbinding' some thing like that. Please check it.

I apologize for not having introduced the related code and error