problem in The method 'blurHash' isn't defined for the type 'OctoPlaceholder'. Try correcting the name to the name of an existing method, or defining a method named 'blurHash'.dartundefined_method Type: InvalidType

[Awyouss]

import 'package:cached_network_image/cached_network_image.dart';
import 'package:flutter/material.dart';
import 'package:instagram/presentation/widgets/global/others/play_this_video.dart';
// ignore: depend_on_referenced_packages
import 'package:octo_image/octo_image.dart';

class NetworkDisplay extends StatefulWidget {
final int cachingHeight, cachingWidth;
final String url, blurHash;
final double aspectRatio;
final bool isThatImage;
final double? height;
final double? width;

const NetworkDisplay({
Key? key,
required this.url,
this.isThatImage = true,
this.cachingHeight = 720,
this.cachingWidth = 720,
this.height,
this.width,
this.blurHash = "",
this.aspectRatio = 0.0,
}) : super(key: key);

@OverRide
State createState() => _NetworkDisplayState();
}

class _NetworkDisplayState extends State {
@OverRide
void initState() {
super.initState();
}

@OverRide
void didChangeDependencies() {
if (widget.isThatImage && widget.url.isNotEmpty) {
precacheImage(NetworkImage(widget.url), context);
}
super.didChangeDependencies();
}

@OverRide
Widget build(BuildContext context) {
return widget.aspectRatio == 0 ? whichBuild(height: null) : aspectRatio();
}

Widget aspectRatio() {
return AspectRatio(
aspectRatio: widget.aspectRatio,
child: whichBuild(),
);
}

Widget whichBuild({double? height = double.infinity}) {
return !widget.isThatImage
? PlayThisVideo(
play: true,
videoUrl: widget.url,
blurHash: widget.blurHash,
)
: buildOcto(height);
}

Widget buildOcto(height) {
int cachingHeight = widget.cachingHeight;
int cachingWidth = widget.cachingWidth;
if (widget.aspectRatio != 1 && cachingHeight == 720) cachingHeight = 960;
return OctoImage(
image: CachedNetworkImageProvider(widget.url,
maxWidth: cachingWidth, maxHeight: cachingHeight),
errorBuilder: (context, url, error) => buildError(),
fit: BoxFit.cover,
width: widget.width ?? double.infinity,
height: widget.height ?? height,
placeholderBuilder: widget.blurHash.isNotEmpty
? OctoPlaceholder.blurHash(widget.blurHash, fit: BoxFit.cover)
: (context) => Center(child: loadingWidget()),
);
}

SizedBox buildError() {
return SizedBox(
width: double.infinity,
height: widget.aspectRatio,
child: Icon(Icons.warning_amber_rounded,
size: 30, color: Theme.of(context).focusColor),
);
}

Widget loadingWidget() {
double aspectRatio = widget.aspectRatio;
return aspectRatio == 0
? buildSizedBox()
: AspectRatio(
aspectRatio: aspectRatio,
child: buildSizedBox(),
);
}

Widget buildSizedBox() {
return Container(
width: double.infinity,
color: Theme.of(context).textTheme.bodyMedium!.color,
child: Center(
child: CircleAvatar(
radius: 57,
backgroundColor: Theme.of(context).textTheme.bodySmall!.color,
child: Center(
child: CircleAvatar(
radius: 56,
backgroundColor: Theme.of(context).textTheme.bodyMedium!.color,
)),
)),
);
}
}

How i can Solve this problem please

[fullflash]

maybe you should remove this example which misleads users

@Awyouss here you can see how to use blurHash https://pub.dev/packages/octo_image#blurhash

[olerich]

This is the breaking change from 1.0.2 to 2.0.0, see the note: [2.0.0] - 2023-09-25 Blurhash dependency, see [in the readme](https://pub.dev/packages/octo_image#blurhash) how to keep using blurhash.

as @fullflash pointed out documentation is outdated. To use the example from the Readme, flutter_blurhash has to be installed manually
https://pub.dev/packages/flutter_blurhash