How to fix "Cannot run with sound null safety" error in Flutter?

Question

I'm encountering the following error in my Flutter project (Android Studio):

Error: Cannot run with sound null safety, because the following dependencies don't support null safety:

* package:fl_chart
* package:equatable
* package:path_drawing
* package:path_parsing

For solutions, see https://dart.dev/go/unsound-null-safety

How can I resolve this issue and run my project?

Take a backup of the project and run flutter pub upgrade in terminal. or add latest versions of these packages in pubspec.yaml file — Kaushik Chandru
– Kaushik Chandru, Commented Jun 8, 2022 at 4:37

Behzad Shabanifard · Accepted Answer · 2022-06-08 04:48:21Z

1

When I search pub.dev for the packages, I see all the mentioned packages support null safety. You just need upgrade the version of packages. flutter pub upgrade --major-versions

answered Jun 8, 2022 at 4:48

Behzad Shabanifard

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