``` import kotlinx.android.synthetic.main.activity...

# android

[Scott]

import kotlinx.android.synthetic.main.activity_main.*
...

gridView.adapter = myAdapter
// "adapter" is an Unresolved Reference

I tried this with a list view as well. It's almost as if the classes for grid and list views didn't have a variable called "adapter" but, according to the way the code is written, I'm assuming they must.