Question 79390 in Flutter Question posted in
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File path error when creating model (String error) – Flutter

The following error message occurred.
"The argument type ‘String?’ can’t be assigned to the parameter type ‘String’"

[enter image description here]

img

I don’t understand why this is an error.
If there is anyone who knows the solution, please let me know.

i want to make model and solve that…
thank you…

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2

Answers


  1. 0

    The value imageFilePath could be null so that means:

    final face = Face(name:faceName,imagePath:imageFilePath!);

    or

    You could make the field imageFile in your Face class null-aware:

    class Face {

final String name;
final String? imagePath;

Face({required this.name,required this.imagePath});

}

    then you can easily do this:

    final face = Face(name:faceName,imagePath:imageFilePath);

    There is another option if you don’t want to do the above two suggestions:

    final face = Face(name:faceName,imagePath:imageFilePath ?? '');
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  2. 0

    imageFilePath is a nullabe String, you can do null check and proceed the way did for faceImagePath.

    if(imageFilePath!=null){
   ....
}
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