Flutter images not loaded (EXCEPTION: resolving an image codec)

Get rid of the leading / in your path to the png. It should be images/p8.png.

Also, consider using the cleaner Image.asset constructor, for example:

new Image.asset('images/p8.png', width: 100.0, height: 100.0)

with new flutter version you also could put folders in pubspec.yaml, not only files

flutter:
  uses-material-design: true
  assets:
    - images/

One thing to note is the 'assets:' tag must be correctly indented with the 'flutter:' tag, but it only throws an error occasionally when loading an asset. So this won't work:

flutter: 
assets:
    - images/

But this will:

flutter: 
  assets:
    - images/

Add '/' correctly in all image paths

In Android Studio,

Tools->Flutter->Flutter Clean