How to resolved Member not found: ‘packageRoot’ how to solve ignore: deprecated_member_use in Flutter?

Root Cause of this problem

• platform pub is out of date. Most likely in your case it’s a transitive dependency from path_provider pub.
• For some reason, flutter pub get won’t update platform which is a transitive dependency. Even if you change the version of its parent pub path_provider to the latest version and call flutter pub get again.

Solutions:

First of all try to these command:

• flutter pub upgrade
• flutter clean
• flutter pub get

if cleaning and getting the packages didn’t work. This error started after I upgraded flutter. I was on the master channel, a quick fix for me was to switch to stable

• flutter channel stable
• flutter upgrade

and above process didn’t work. then try this:

flutter pub cache repair