类DashboardRecyclerAdapter: RecyclerView.Adapter 您的问题是DashboardViewHolder
不继承RecyclerView.ViewHolder
。请查看文档中的一些示例。它应该是这样的class DashboardViewHolder(view: View) : RecyclerView.ViewHolder(view) {
val textView: TextView = view.findViewById(R.id.txtRecyclerRowItem)
}