CODEWITHSUNDEEP
flutterdartdart-null-safety
Paras Bansal
Paras Bansal

Reputation: 103

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

I am new to flutter and I got this error when I tried to run the flutter run command. I found many articles related to this issue and got to know that flutter run --no-sound-null-safety is the solution to this issue during development. But my question is that What if I get this error during the production build? How can I handle it there?

Upvotes: 0

Views: 5841

Answers (1)

cameron1024
cameron1024

Reputation: 10186

flutter build <target> --no-sound-null-safety works too (as does flutter test --no-sound-null-safety FYI).

Note that this is a compilation error. If it fails, you won't get your APK (or whatever you're targeting), so this is not something you need to worry about happening "in production".

However, if you're new to Flutter, and the project is still young, consider trying to remove the null-unsafe dependencies. The command flutter pub outdated --mode=null-safety will give you info on which packages don't support null safety, and whether they can be upgraded.

Upvotes: 2

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