Add support to nnbd

[canastro]

Add support to non-nullable by default.

Related with https://github.com/rodydavis/flutter_midi/issues/26 and https://github.com/rodydavis/flutter_midi/issues/27

[canastro]

I've just encountered this lib (literally like a couple of hours ago) and I'm about to start playing with it in a small pet project.

I'm having some dependencies conflicts and in this PR I try to address them. Let me know if you have any concerns that I might have missed here.

[MrHazee]

Nice @canastro! How can I use your branch correct? In my pubspec.yaml I´ve tried: flutter_midi: git: https://github.com/canastro/flutter_midi.git

but that only gives me:

Could not find a file named "pubspec.yaml"

Thanks

[canastro]

Theres an extra folder, try with:

 git:
      url: https://github.com/canastro/flutter_midi.git
      path: flutter_midi/

[MrHazee]

Thank you, I tried what you suggested but got the same dependency problem as before:

Because every version of flutter_midi from git depends on path_provider ^1.6.0 and abc2 depends on path_provider ^2.0.1, flutter_midi from git is forbidden.

So, because abc2 depends on flutter_midi from git, version solving failed. pub get failed (1; So, because abc2 depends on flutter_midi from git, version solving failed.) exit code 1

I also tried git: url: https://github.com/canastro/flutter_midi.git path: flutter_midi/ ref: nnbd

and that gives me

Error on line 17, column 11: Invalid description in the "flutter_midi" pubspec on the "flutter_midi_platform_interface" dependency: "../flutter_midi_platform_interface" is a relative path, but this isn't a local pubspec. ╷ 17 │ path: ../flutter_midi_platform_interface │ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ ╵ pub get failed (65; ╵) exit code 65

Thanks

[canastro]

The last version you used should be the correct one (with the ref: nnbd).

I changed the dependency of flutter_midi_platform_interface to use the one thats available in this same repo, via local dep... That doesnt play out well when using as dep in other projects :\

[MrHazee]

Ah got it. I should be able to modify the dependency of flutter_midi_platform_interface for my project then! Thanks a lot mate

[camillo777]

Hello, can someone point me to the correct yaml to use flutter_midi with Flutter 2? I have tried the suggested but I still got the error:

flutter_midi: 
    git:
      url: https://github.com/canastro/flutter_midi.git
      path: flutter_midi/
      ref: nnbd

Error is:

Error on line 17, column 11: Invalid description in the "flutter_midi" pubspec on the "flutter_midi_platform_interface" dependency: "../flutter_midi_platform_interface" is a relative path, but this isn't a local pubspec.

╷ 17 │ path: ../flutter_midi_platform_interface

│ ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

╵ pub get failed (65; ╵) exit code 65

[rodydavis]

I will work on merging this soon

[canastro]

I think we'll still need this one to be merged on dart-tonic to be fully nnbd.

[rodydavis]

Yeah for sure, I may need to create a fork.