Question 195749 in Flutter Question posted in
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After I update the flutter there's an import error in flutter

/C:/Users/DL/AppData/Local/Pub/Cache/hosted/pub.dev/flutter_datetime_picker-1.5.1/lib/flutter_datetime_picker.dart:6:1: Error: ‘DatePickerTheme’ is imported from both ‘package:flutter/src/material/date_picker_theme.dart’ and ‘package:flutter_datetime_picker/src/datetime_picker_theme.dart’.
import ‘package:flutter_datetime_picker/src/datetime_picker_theme.dart’;
datetime_picker_theme.dart:1
^^^^^^^^^^^^^^^

/C:/Users/DL/AppData/Local/Pub/Cache/hosted/pub.dev/flutter_datetime_picker-1.5.1/lib/flutter_datetime_picker.dart:199:31: Error: ‘DatePickerTheme’ is imported from both ‘package:flutter/src/material/date_picker_theme.dart’ and ‘package:flutter_datetime_picker/src/datetime_picker_theme.dart’.
this.theme = theme ?? DatePickerTheme(),
^^^^^^^^^^^^^^^
Failed to compile application.

this error happens after I update

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2

Answers


  1. 0

    Seem likes the new updated Flutter has it own material datetime_picker_theme & you also use datetime_picker_theme in package flutter_datetime_picker. You could use the alias for import package, check out: Does Dart have import alias?

    If your previous datetime_picker_theme belongs to package flutter_datetime_picker, you could make a alias for it, such as:

    import 'package:flutter_datetime_picker/flutter_datetime_picker.dart' as fl_dt_picker;

    And then use your DatePickerTheme().

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  2. 0

    problem: DatePickerTheme class conflict in 2 different pub package

    possible solution:

    1. try to check the changes from pub packages, and figure out the broken changes,
    2. theres 2 class DatePickerTheme exist in 2 different packages, try to import them "as" similar to this dart import

    example
    `import ‘package:lib1/lib1.dart’;

    import ‘package:lib2/lib2.dart’ as lib2;

    // Uses Element from lib1.
    Element element1 = Element();

    // Uses Element from lib2.
    lib2.Element element2 = lib2.Element();`

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