CODEWITHSUNDEEP
flutterdartmodeljsonmodel
dampidumpi
dampidumpi

Reputation: 1

Unable to instantiate class 'ModelSubClass' with null named arguments [Symbol("createdDate"), Symbol("modifiedDate"), Symbol("deletedDate")]

class Model {
  final List<ModelFeatures>? shipFeatures;
  final List<ModelClass>? modelClass;
  final List<ModelMedia>? shipMedias;

  const Model({
    this.modelClass;
  });
}

class ModelClass {
  final ModelSubClass subClass;

  const ModelClass({
    required this.subClass,
  });
}

class ModelSubClass {
  final String? id;
  final String? name;
  final String? type;
  final String? createdDate;
  final String? modifiedDate;
  final String? deletedDate;

  const ModelSubClass({
    this.id,
    this.name,
    this.type,
    this.createdDate,
    this.modifiedDate,
    this.deletedDate,
  });
}

and my api schemas is;

modelClass
[
       nullable: true
{
     technicalInformationId string($uuid) 
     subClass{
        idstring($uuid) nullable: true
        namestring nullable: true 
        typeShipTypeEnum string Enum:
        createdDate string($date-time) nullable: true
        modifiedDatestring($date-time) nullable: true
        
deletedDatestring($date-time) nullable: true
} 
value string nullable: true
createdDatestring($date-time) nullable: true
modifiedDatestring($date-time) nullable: true
deletedDatestring($date-time) nullable: true
}
]

and my error is " Unable to instantiate class 'ModelSubClass' with null named arguments [Symbol("createdDate"), Symbol("modifiedDate"), Symbol("deletedDate")]" how can i fix that, i tried a lot of things but non of worked. thanks for helping

i tried nullable value also i tried DateTime instead of String but it couldnt work.

Upvotes: 0

Views: 87

Answers (1)

DIESEL
DIESEL

Reputation: 521

Removing final keywords for ModelSubClass fields did the trick for me. Not sure why though, would appreciate some insights on this.

Upvotes: 0

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