How to Solve the Named Parameter 'vsync' isn't Defined

How to Solve the Named Parameter ‘vsync’ isn’t Defined ??

· 3 min read

Earlier we have been through various articles based on AnimatedBuilder Widget. So in this article, we will go through how to solve the named parameter ‘vsync’ isn’t defined? How to solve the named parameter ‘vsync’ isn’t defined? Make changes in your pubspec.yaml change this to : environment: sdk: “>=2.8.0 <3.0.0” and flutter pub gets in…