[here's my code ][1]

[1]: https://i.stack.imgur.com/uoq`val recyclerView = findViewById(R.id.recyclerView) recyclerView.layoutManager=LinearLayoutManager(this) `xi.png

CodePudding user response：

You have to infer the correct type for the findViewById method, otherwise the recyclerview variable will be a generic View and not a RecyclerView

val recyclerView = findViewById<RecyclerView>(R.id.recyclerView)