Problem with view.findViewById

hello, in ‘HomeFragements.kt’ section for recyclerview when i mark view.findViewById point in view and extension is error and i can’t solve it can you help me please ?
below, it’s my code with problem

package fr.dorian.opaleapplication2.fragments

import android.os.Bundle
import android.view.LayoutInflater
import android.view.View
import androidx.fragment.app.Fragment
import androidx.recyclerview.widget.RecyclerView
import fr.dorian.opaleapplication2.MainActivity
import fr.dorian.opaleapplication2.ProjectModel
import fr.dorian.opaleapplication2.R
import fr.dorian.opaleapplication2.adapter.ProjectItemDecoretion
import fr.dorian.opaleapplication2.adapter.Projectadapter
import android.view.ViewGroup as ViewGroup


class HomeFragments(
    private val context: MainActivity
) : Fragment() {

    override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?,savedInstanceState: Bundle?): View? {
        val view = inflater?.inflate(R.layout.fragment_home, container, false)

        // creer une liste qui va stocker les projets
        val projectList = arrayListOf<ProjectModel>()

        // enregistrer un premier projet
        projectList.add(
            ProjectModel(
            "Etudes",
            "Retrouvez vos notes",
            "https://pixabay.com/photos/book-glasses-watch-knowledge-1052014/",
            false

        ))

        // enregistrer un deuxieme projet projet
        projectList.add(
            ProjectModel(
                "Notes",
                "Retrouvez vos notes",
                "https://cdn.pixabay.com/photo/2017/10/14/09/56/journal-2850091__340.jpg",
                false

            ))

        // enregistrer un toisième projet projet
        projectList.add(
            ProjectModel(
                "Santé",
                "Ouvrir vos documents médicaux",
                "https://cdn.pixabay.com/photo/2016/11/09/15/27/dna-1811955__340.jpg",
                false

            ))

        // enregistrer un quatrième projet projet
        projectList.add(
            ProjectModel(
                "Personnel",
                "Continuez vos activités",
                "https://cdn.pixabay.com/photo/2018/02/03/09/51/bulletin-board-3127287__340.jpg",
                false

            ))

        // Récupérer le RecyclerView
        val horizontalRecyclerView = view.findViewById<RecyclerView>(R.id.horizontal_Recycler_view)
        horizontalRecyclerView.adapter = Projectadapter(context, projectList, R.layout.item_horizontal_project)

        // Récupérer le second RecyclerView
        val verticalRecyclerView = view.findViewById<RecyclerView>(R.id.vertical_Recycler_view)
        verticalRecyclerView.adapter = Projectadapter(context, projectList, R.layout.item_vertical_projects)
        verticalRecyclerView.addItemDecoration(ProjectItemDecoretion())

        return view
    }
}