Flutter: Unable to load asset Image provider: AssetImage(bundle: null, name: "assets/images/rose.jpg")

Question

I cant Upload image as a background to a stack, i have added the image in assets folder and added it to pubspec.yaml and showing me that error :

Exception caught by image resource service.
The following assertion was thrown resolving an image codec:
Unable to load asset: assets/images/rose.jpg
When the exception was thrown, this was the stack: 
#0      PlatformAssetBundle.load (package:flutter/src/services/asset_bundle.dart:225:7)
<asynchronous suspension>
#1      AssetBundleImageProvider._loadAsync (package:flutter/src/painting/image_provider.dart:668:31)
#2      AssetBundleImageProvider.load (package:flutter/src/painting/image_provider.dart:651:14)
#3      ImageProvider.resolveStreamForKey.<anonymous closure> (package:flutter/src/painting/image_provider.dart:504:13)
...
Image provider: AssetImage(bundle: null, name: "assets/images/rose.jpg")
Image key: AssetBundleImageKey(bundle: PlatformAssetBundle#dea48(), name: "assets/images/rose.jpg", scale: 1.0)

Code:

  return new Scaffold(
  backgroundColor: Colors.greenAccent,

  body: new Stack(
    children: [
      new Image(
        image: new AssetImage("assets/images/rose.jpg"),
        fit: BoxFit.cover,
      ),
    ],
  ),

);

My Asset folder

Solution

Run flutter clean and run again.