Flutter: Unable to load asset Image provider: AssetImage(bundle: null, name: “assets/xx/xx.jpg

Flutter图片加载问题，Flutter: Unable to load asset Image provider: AssetImage(bundle: null, name: “assets/images/xx.jpg”)

解决方案：

依赖包添加文件目录路径（在pubspec.yaml文件里）

flutter:
  # The following line ensures that the Material Icons font is
  # included with your application, so that you can use the icons in
  # the material Icons class.
  uses-material-design: true
  assets: