Laravel 5.6 Undefined variable in View

Here I have been using json to be sent to the view but all the time around I am getting Variable Undefined error where print_r() inb the controller gives the variable value correctly.

namespace App\Http\Controllers;

use Illuminate\Http\Request;
use  App\Model\BB\Invoices\BB_Invoices;

class BB_InvoicesController extends Controller
{
    /**
     * Display a listing of the resource.
     *
     * @return \Illuminate\Http\Response
     */
    public function index()
    {
        $BB_Invoices=BB_Invoices::all()->toArray();
        $BB_Invoices=json_encode($BB_Invoices);
        //print_r($BB_Invoices);
        //return View::make('BB_Invoices.index', compact($BB_Invoices));
        return view('BB_Invoices.index', compact($BB_Invoices));
    }
}

and I am getting this error-

"Undefined variable: BB_Invoices 

via Chebli Mohamed