Apps Cannot find symbol class class

[Kevil]

I am finishing with the example Android application Real Estates on Mars. It was running well until

4) Task: Display a grid of images with RycyclerView

step 9. In MarsPropertyViewHolder, create a bind() method that takes a MarsProperty object as an argument and sets binding.property to that object. Call executePendingBindings() after setting the property, which causes the update to execute immediately.

see link here

I think I did it correctly:

class MarsPropertyViewHolder(private var binding:
GridViewItemBinding):
RecyclerView.ViewHolder(binding.root){
fun bind(marsProperty: MarsProperty) {
binding.property = marsProperty
binding.executePendingBindings()
}
}

I am getting one error while compiling the code:

cannot find symbol class class GridViewItemBindingImpl

Any advice on how to fix it?

 

[Kevil]

Part of the code were missing, fixed and now it compiles flawlessly.