Error 'A value of type 'dynamic' can't be assigned to a variable of type 'String'.' in Dart 2.2

Question

since the last dart update (2.2) I'm getting this error,

'A value of type 'dynamic' can't be assigned to a variable of type 'String'.'

which doesn't make much sense to me. the code is absolutely trivial:

    class EmployeeMirror {
  EmployeeMirror(this.id, this.name);

  EmployeeMirror.fromMap(Map<String, dynamic> _map) {
    id = _map['id'];      // error here
    name = _map['name'];  // and here
  }

  int id;
  String name;
}

I don't think is relevant, but this is in an Aqueduct project.

thanks in advance for the help

You can disable this check by removing implicit-cast: false (or setting it to true) from the analysis.options.yaml file. dartlang.org/guides/language/… — Mattia
– Mattia, Commented Mar 7, 2019 at 14:46

mezoni · Accepted Answer · 2019-03-07 08:41:11Z

13

class EmployeeMirror {
  EmployeeMirror(this.id, this.name);

  EmployeeMirror.fromMap(Map<String, dynamic> _map) {
    id = _map['id'] as int;
    name = _map['name'] as String;
  }

  int id;
  String name;
}

answered Mar 7, 2019 at 8:41

mezoni

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1 Comment

Roxx Over a year ago

I am also stuck in similar case. Can you help in this question stackoverflow.com/questions/63779722/…

Ali Bagheri · Accepted Answer · 2023-11-07 11:17:31Z

0

use this:

analyzer:
  errors:
    invalid_assignment: ignore

answered Nov 7, 2023 at 11:17

Ali Bagheri

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Comments

Musaddiq625 · Accepted Answer · 2024-09-26 11:38:00Z

0

analyzer:
  errors:
    argument_type_not_assignable: ignore <-- ADD THIS

This worked for me ✨

Also clean the cache of your IDE too

answered Sep 26, 2024 at 11:38

Musaddiq625

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