New null safety does not let fromJson method to work

[tanmoy27112000]

The issue shown:
Non-nullable instance field 'menu' must be initialized.
Try adding an initializer expression, or add a field initializer in this constructor, or mark it 'late'.dart

[tanmoy27112000]

TO FIX it you have to initialize all the variables

[dingjianjaja]

use this https://dingjianjaja.github.io

[javiercbk]

It is illegal to promote your stuff here...but I'm a good guy, so I'll leave it here anyways :)

[javiercbk]

Also, It's done...I've implemented this feature