一、出错原因
======== Exception caught by image resource service ================================================
The following assertion was thrown resolving an image codec:
Unable to load asset: images/icon_log.png
When the exception was thrown, this was the stack:
#0 PlatformAssetBundle.load (package:flutter/src/services/asset_bundle.dart:227:7)
<asynchronous suspension>
#1 AssetBundleImageProvider._loadAsync (package:flutter/src/painting/image_provider.dart:667:14)
<asynchronous suspension>
Image provider: AssetImage(bundle: null, name: "images/icon_log.png")
Image key: AssetBundleImageKey(bundle: PlatformAssetBundle#fd0dc(), name: "images/icon_log.png", scale: 1.0)
====================================================================================================
看到是不能加载，为什么呢？ 主要是图片资源写错了。
二、解决方法
请查看pubspec.yaml文件图片资源加载的格式是否正确。
然后停止项目，重新运行，就会没有问题的。
希望对你有帮助！！