Error: The class 'Drag' can't be used as a mixin because it isn't a mixin class nor a mixin.

[blacknight9]

just installed it and i got this.

../../.pub-cache/hosted/pub.dev/image_crop_plus-0.6.1/lib/src/crop.dart:78:68: Error: The class 'Drag' can't be used as a mixin because it isn't a mixin class nor a mixin.
class CropState extends State<Crop> with TickerProviderStateMixin, Drag {

[LogicNg]

@JaveriaJR same problem here

[JaveriaJR]

@LogicNg @blacknight9 Are you getting this error at installation? I am unable to replicate the issue.

[blacknight9]

@JaveriaJR @blacknight9 Are you getting this error at installation? I am unable to replicate the issue.

Update to the latest Dart version

[milkyway044]

: Error: The class 'Drag' can't be used as a mixin because it isn't a mixin class nor a mixin.
class CropState extends State<Crop> with TickerProviderStateMixin, Drag {
                                                                   ^
: Error: The getter 'valueWrapper' isn't defined for the class 'BehaviorSubject<CameraStatus>'.
- 'BehaviorSubject' is from 'package:rxdart/src/subjects/behavior_subject.dart' ('../../../.pub-cache/hosted/pub.dev/rxdart-0.27.7/lib/src/subjects/behavior_subject.dart').
- 'CameraStatus' is from 'package:camera_camera/src/core/camera_status.dart' ('../../../.pub-cache/hosted/pub.dev/camera_camera-2.0.2/lib/src/core/camera_status.dart').
Try correcting the name to the name of an existing getter, or defining a getter or field named 'valueWrapper'.
      statusStream.valueWrapper?.value ?? CameraStatusEmpty();
                   ^^^^^^^^^^^^

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[JaveriaJR]

Hi everyone, Please let me know if you get any issues in whatsapp_story_editor: ^0.0.6 (and above).
@milkyway044 @blacknight9 @LogicNg

[blacknight9]

it's been months since i tried this. still having the same issue.

after installing the app won't work, i get thiss error

../../../.pub-cache/hosted/pub.dev/image_crop_plus-0.6.1/lib/src/crop.dart:78:68: Error: The class 'Drag' can't be used as a mixin because it isn't a mixin class nor a mixin.
class CropState extends State<Crop> with TickerProviderStateMixin, Drag {

                                                               ^

[MartinMbae]

Still getting the same error