"Laravel DataTable - $dataTable 未定义"

Question

I created a Model, Controller, Factory and dataTable files, but laravel keeps showing me the error $dataTable is undefined<\/code>

<?php

namespace App\Http\Controllers;

use Illuminate\Http\Request;
use App\DataTables\DataEntry\ReportsDataTable;

class ReportsController extends Controller
{
    public function index(ReportsDataTable $dataTable)
    {
        return $dataTable->render("pages.dataEntry.reports.index");
    }
}

Answer 1

public function index()
{
    return ReportsDataTable::all()->render("pages.dataEntry.reports.index");
}