LateInitializationError: Field '_delegate@20417691' has not been initialized.

[ZhongGuanbin]

Hello, everyone. Thank you for taking the time to discuss this issue during your busy schedule. When I first encountered this problem in the afternoon, I improved my code and put the CropController into the constructor to ensure that the initialization is completed when the object is instantiated. In fact, he worked. But when I ran it again at night, this error occurred again. I am not sure if this is a bug, and I hope to get everyone's help. Below is the error message and some codes. Thank you

`======== Exception caught by gesture =============================================================== The following LateError was thrown while handling a gesture: LateInitializationError: Field '_delegate@20417691' has not been initialized.

When the exception was thrown, this was the stack: #0 CropController._delegate (package:crop_your_image/src/controller.dart) #1 CropController.image= (package:crop_your_image/src/controller.dart:18:33) #2 ImageFiles.changeImageFile (package:data_matrix/model/image_files.dart:16:20) #3 _ContentState.build... (package:data_matrix/page/content.dart:129:41) #4 _InkResponseState.handleTap (package:flutter/src/material/ink_well.dart:1084:21) #5 GestureRecognizer.invokeCallback (package:flutter/src/gestures/recognizer.dart:275:24) #6 TapGestureRecognizer.handleTapUp (package:flutter/src/gestures/tap.dart:660:11) #7 BaseTapGestureRecognizer._checkUp (package:flutter/src/gestures/tap.dart:311:5) #8 BaseTapGestureRecognizer.handlePrimaryPointer (package:flutter/src/gestures/tap.dart:244:7) #9 PrimaryPointerGestureRecognizer.handleEvent (package:flutter/src/gestures/recognizer.dart:630:9) #10 PointerRouter._dispatch (package:flutter/src/gestures/pointer_router.dart:98:12) #11 PointerRouter._dispatchEventToRoutes. (package:flutter/src/gestures/pointer_router.dart:143:9) #12 _LinkedHashMapMixin.forEach (dart:collection-patch/compact_hash.dart:625:13) #13 PointerRouter._dispatchEventToRoutes (package:flutter/src/gestures/pointer_router.dart:141:18) #14 PointerRouter.route (package:flutter/src/gestures/pointer_router.dart:127:7) #15 GestureBinding.handleEvent (package:flutter/src/gestures/binding.dart:465:19) #16 GestureBinding.dispatchEvent (package:flutter/src/gestures/binding.dart:445:22) #17 RendererBinding.dispatchEvent (package:flutter/src/rendering/binding.dart:330:11) #18 GestureBinding._handlePointerEventImmediately (package:flutter/src/gestures/binding.dart:400:7) #19 GestureBinding.handlePointerEvent (package:flutter/src/gestures/binding.dart:363:5) #20 GestureBinding._flushPointerEventQueue (package:flutter/src/gestures/binding.dart:320:7) #21 GestureBinding._handlePointerDataPacket (package:flutter/src/gestures/binding.dart:293:9) #22 _invoke1 (dart:ui/hooks.dart:158:13) #23 PlatformDispatcher._dispatchPointerDataPacket (dart:ui/platform_dispatcher.dart:382:7) #24 _dispatchPointerDataPacket (dart:ui/hooks.dart:91:31) Handler: "onTap" Recognizer: TapGestureRecognizer#2a833 debugOwner: GestureDetector state: possible won arena finalPosition: Offset(952.5, 430.5) finalLocalPosition: Offset(52.5, 16.8) button: 1 sent tap down ====================================================================================================`

@override Widget build(BuildContext context) { return ChangeNotifierProvider<ImageFiles>( create: (ctx) => ImageFiles(CropController()), child: MaterialApp(

`class ImageFiles extends ChangeNotifier{ ImageFiles(this.cropController);

ImageFiles.withImageFiles(this.cropController,this.deliveryImageFile);

File? deliveryImageFile; CropController cropController;

void changeImageFile(File newImageFile){ deliveryImageFile = newImageFile; cropController.image = newImageFile.readAsBytesSync(); notifyListeners(); }`

return Consumer( builder: (ctx, ImageFiles imageFile, child){ return ListTile( leading: Image.file(imageFileList[index]), title: Text(imageFileList[index].path.split('\\').last,overflow: TextOverflow.visible,), onTap: (){ imageFile.changeImageFile(imageFileList[index]); }, ); }, );

[tneils218]

+1 same problem, when i try to pick an image from user lib

[ZhongGuanbin]

来信获悉，感谢您的支持！耑此奉复 钟冠彬This is an automatic reply, confirming that your e-mail was received.Thank you

[wbin-dev]

Same problem. I also try to crop an image from user library.

Workaround: it is ok after the controller has been built at least once. (I guess).

[chooyan-eng]

Thank you all for your feedback and suggestions.

@ZhongGuanbin Can you provide the minimum code to reproduce the issue? It'll be great if the code can be run when I just copy and paste it to my VSCode.

[ZhongGuanbin]

来信获悉，感谢您的支持！耑此奉复 钟冠彬This is an automatic reply, confirming that your e-mail was received.Thank you

[scognito]

news? I have the same problem

[ZhongGuanbin]

来信获悉，感谢您的支持！耑此奉复 钟冠彬This is an automatic reply, confirming that your e-mail was received.Thank you