Error:The following assertion was thrown resolving an image codec: Unable to load asset

[Vishnu Sai]

Hi 

i have just started learning flutter, this is my first app and I am getting an error. can anyone please help me to resolve the error.

Thanks in advance 

 

Console Output

The following assertion was thrown resolving an image codec:

Unable to load asset: - images/Screenshot.png

When the exception was thrown, this was the stack: 

#0      PlatformAssetBundle.load (package:flutter/src/services/asset_bundle.dart:221:7)

<asynchronous suspension>

#1      AssetBundleImageProvider._loadAsync (package:flutter/src/painting/image_provider.dart:664:31)

#2      AssetBundleImageProvider.load (package:flutter/src/painting/image_provider.dart:648:14)

#3      ImageProvider.resolveStreamForKey.<anonymous closure> (package:flutter/src/painting/image_provider.dart:501:13)

...

Image provider: AssetImage(bundle: null, name: "- images/Screenshot.png")

Image key: AssetBundleImageKey(bundle: PlatformAssetBundle#3ec89(), name: "- images/Screenshot.png", scale: 1.0)

════════════════════════════════════════════════════════════════════════════════════════════════════

Flutter Doctor : output 

C:\Users\Burn_The_Ships\Desktop\Practice\flutter\bin\flutter.bat doctor --verbose

[√] Flutter (Channel stable, v1.17.5, on Microsoft Windows [Version 10.0.19041.329], locale en-CA)

    • Flutter version 1.17.5 at C:\Users\Burn_The_Ships\Desktop\Practice\flutter

    • Framework revision 8af6b2f038 (6 days ago), 2020-06-30 12:53:55 -0700

    • Engine revision ee76268252

    • Dart version 2.8.4

[√] Android toolchain - develop for Android devices (Android SDK version 30.0.0)

    • Android SDK at C:\Users\Burn_The_Ships\AppData\Local\Android\sdk

    • Platform android-30, build-tools 30.0.0

    • Java binary at: C:\Program Files\Android\Android Studio\jre\bin\java

    • Java version OpenJDK Runtime Environment (build 1.8.0_242-release-1644-b01)

    • All Android licenses accepted.

[√] Android Studio (version 4.0)

    • Android Studio at C:\Program Files\Android\Android Studio

    • Flutter plugin version 47.1.2

    • Dart plugin version 193.7361

    • Java version OpenJDK Runtime Environment (build 1.8.0_242-release-1644-b01)

[√] Connected device (1 available)

    • sdk gphone x86 arm • emulator-5554 • android-x86 • Android 11 (API 30) (emulator)

• No issues found!

MY Pubspec.yaml file 

name: i_am_rich
description: A new Flutter application.
version: 1.0.0+1

environment:
  sdk: ">=2.7.0 <3.0.0"

dependencies:
  flutter:
    sdk: flutter

  cupertino_icons: ^0.1.3

dev_dependencies:
  flutter_test:
    sdk: flutter


flutter:
  uses-material-design: true
  assets:
    - images/Screenshot.png

My main.dart file 

import 'package:flutter/cupertino.dart';
import 'package:flutter/material.dart';

//the main unction is the starting point for all our flutter apps
void main() {
  runApp(
    MaterialApp(
      home: Scaffold(
        backgroundColor: Colors.blue[600],
        bottomNavigationBar: Text('this is the addon for this task'),
        appBar: AppBar(
            title: Text('I am rich'), backgroundColor: Colors.blueGrey[900]),
        body: Center(
          child: Image(
            image: AssetImage('- images/Screenshot.png'),
          ),
        ),
      ),
    ),

  );
}

[Souvik Dutta]

In your pubspec.yaml file under assets keep only images/ that is delete screenshot.png

Souvik flutter dev

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[Vishnu Sai]

I have tried your suggestion, but still, I am getting this error

Performing hot restart...

Syncing files to device sdk gphone x86 arm...

Restarted application in 3,257ms.

I/flutter (17046): ══╡ EXCEPTION CAUGHT BY IMAGE RESOURCE SERVICE ╞════════════════════════════════════════════════════

I/flutter (17046): The following assertion was thrown resolving an image codec:

I/flutter (17046): Unable to load asset: - images/Screenshot.png

I/flutter (17046): 

I/flutter (17046): When the exception was thrown, this was the stack:

I/flutter (17046): #0      PlatformAssetBundle.load (package:flutter/src/services/asset_bundle.dart:221:7)

I/flutter (17046): <asynchronous suspension>

I/flutter (17046): #1      AssetBundleImageProvider._loadAsync (package:flutter/src/painting/image_provider.dart:664:31)

I/flutter (17046): #2      AssetBundleImageProvider.load (package:flutter/src/painting/image_provider.dart:648:14)

I/flutter (17046): #3      ImageProvider.resolveStreamForKey.<anonymous closure> (package:flutter/src/painting/image_provider.dart:501:13)

I/flutter (17046): #4      ImageCache.putIfAbsent (package:flutter/src/painting/image_cache.dart:359:22)

I/flutter (17046): #5      ImageProvider.resolveStreamForKey (package:flutter/src/painting/image_provider.dart:499:80)

I/flutter (17046): #6      ScrollAwareImageProvider.resolveStreamForKey (package:flutter/src/widgets/scroll_aware_image_provider.dart:106:19)

I/flutter (17046): #7      ImageProvider.resolve.<anonymous closure> (package:flutter/src/painting/image_provider.dart:330:9)

I/flutter (17046): #8      ImageProvider._createErrorHandlerAndKey.<anonymous closure>.<anonymous closure> (package:flutter/src/painting/image_provider.dart:460:26)

I/flutter (17046): (elided 13 frames from dart:async)

I/flutter (17046): 

I/flutter (17046): Image provider: AssetImage(bundle: null, name: "- images/Screenshot.png")

I/flutter (17046): Image key: AssetBundleImageKey(bundle: PlatformAssetBundle#a0193(), name: "- images/Screenshot.png",

I/flutter (17046):   scale: 1.0)

I/flutter (17046): ════════════════════════════════════════════════════════════════════════════════════════════════════

════════ Exception caught by image resource service ════════════════════════════════════════════════

The following assertion was thrown resolving an image codec:

Unable to load asset: - images/Screenshot.png

When the exception was thrown, this was the stack: 

#0      PlatformAssetBundle.load (package:flutter/src/services/asset_bundle.dart:221:7)

<asynchronous suspension>

#1      AssetBundleImageProvider._loadAsync (package:flutter/src/painting/image_provider.dart:664:31)

#2      AssetBundleImageProvider.load (package:flutter/src/painting/image_provider.dart:648:14)

#3      ImageProvider.resolveStreamForKey.<anonymous closure> (package:flutter/src/painting/image_provider.dart:501:13)

...

Image provider: AssetImage(bundle: null, name: "- images/Screenshot.png")

Image key: AssetBundleImageKey(bundle: PlatformAssetBundle#a0193(), name: "- images/Screenshot.png", scale: 1.0)

════════════════════════════════════════════════════════════════════════════════════════════════════

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[Souvik Dutta]

Also try removing "-" from the asset image

Souvik flutter dev

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[Vishnu Sai]

It's working now, thanks for the help.

i have accidentally pressed some commend which turned my AVD into pic shown below,

can you please help me to fix this, 

Thanks in Advance 

Vishnu

[Souvik Dutta]

There is a pofilling tab in android studio tap on it and you will understand.

Souvik flutter dev

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