我尝试从onBindViewHolder（）调用内部类LaunchesViewHolder中声明的fun bind，但收到错误“Unresolved resource bind”。我尝试使用其他变量x，只是为了查看，同样的问题

class LaunchesAdapter(private val dataSet: List<LaunchItem>) :
    RecyclerView.Adapter<RecyclerView.ViewHolder>() {

   inner class LaunchesViewHolder( val binding: LaunchesItemLayoutBinding) :
        RecyclerView.ViewHolder(binding.root) {
        val x = 0
        public fun bind(currentLaunch: LaunchItem) {
           //do something
        }
    }

    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): RecyclerView.ViewHolder {

        return LaunchesViewHolder(
            LaunchesItemLayoutBinding.inflate(
                LayoutInflater.from(parent.context),
                parent,
                false
            )
        )
    }

    override fun onBindViewHolder(holder: RecyclerView.ViewHolder, position: Int) {
     holder.bind(dataSet[position]) => error unresolved resource bind 
     holder.x =1 => error unresolved resource x
}

    override fun getItemCount(): Int {
        return dataSet.size
    }
}````