'VoidCallback' isn't a type

[Emmanuelfrimpong]

i get this error on build
.
Error: Type 'VoidCallback' not found.
../…/utils/downloader_utils.dart:23
final VoidCallback onDone;
^^^^^^^^^^^^
: Error: 'VoidCallback' isn't a type.
../…/utils/downloader_utils.dart:23
final VoidCallback onDone;
^^^^^^^^^^^^

[murali-cse]

I am also got the same error!

I am using

flowder: ^0.2.0
flutter version : 2.5.3

[murali-cse]

idk, is this correct or not ! but It's working for me after I add typedef VoidCallback = void Function(); line on flowder.dart

[mapacheverdugo]

Fixed on #10

[alexaung]

I am facing same issue. how do you guys solved this issue.

[koundal691]

any update on this issue ?

[Livekus]

#10 not work for me. i clone to local directory, add it to pubspec ../flowder still not work

[Harsh223]

#10 not work for me. i clone to local directory, add it to pubspec ../flowder still not work

Fixed on #12

[Harsh223]

@Livekus @alexaung @koundal691 Before the dev accepts my pull request you can use my fork of the repo instead

How to do that?
i) Open your pubspec.yaml file
ii) Comment/remove the line flowder: ^0.2.0
iii) and replace it with:
flowder:
git:
url: https://github.com/Harsh223/flowder.git

iv) run flutter pub get
v) build it again and it should have fixed it.

[Livekus]

@Harsh223 Thank you very much , i got some solution before, just change final VoidCallback onDone; to dynamic form which is final onDone; but your solution may be better.

[Nicole-xq]

我在构建时收到此错误 。 错误：找不到类型“VoidCallback”。 ../…/utils/downloader_utils.dart:23 最后的 VoidCallback onDone; ^^^^^^^^^^^^ ：错误：“VoidCallback”不是一个类型。 ../…/utils/downloader_utils.dart:23 最后的 VoidCallback onDone; ^^^^^^^^^^^^^

This problem occurs because the dart:ui package has not been introduced.
Add the following code to the downloader_utils.dart file and it will run successfully
import 'dart:ui';

[Tahira6020]

idk, is this correct or not ! but It's working for me after I add typedef VoidCallback = void Function(); line on flowder.dart

Thank you, I added this line and error eliminated

[Tahira6020]

idk, is this correct or not ! but It's working for me after I add typedef VoidCallback = void Function(); line on flowder.dart

Thank you, I added this line and error eliminated