Question 75418 in Flutter Question posted in
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error: The argument type 'File?' can't be assigned to the parameter type 'File' – Flutter

error: The argument type ‘File?’ can’t be assigned to the parameter type ‘File’. (argument_type_not_assignable at [aplikasi_scan_plat_nomor] libscreenhome.dart:82)

File? pickedImage;
image: FileImage(pickedImage),
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2

Answers


  1. 0

    Your dataType is nullable which is ok.

    File? pickedImage;

    But image doesnt accept null data.
    You can do a null check first.

    if(pickedImage!=null)
  YourWidget(
     image: FileImage(pickedImage),

    Adding null-assert(!) is risky without checking null first.

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  2. 0

    The proper way would be to do a null check, but you can also assign an initial value your pickedImage.

    File pickedImage = File('initialValue');

image: FileImage(pickedImage),
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