Laravel 5 Call to undefined function App\Http\Controllers\riderect() Error

im new to the laravel and im developing file uploading system. up-to file upload to the database is OK. but when i try to delete it gives this error.

Call to undefined function App\Http\Controllers\riderect()

here is the FileUpload Controller.and its delete function

  <?php

namespace App\Http\Controllers;

use Illuminate\Http\Request;
use Illuminate\Support\Facades\Storage;
use Illuminate\Support\Facades\Redirect;
use App\UploadedFile;

class FilesController extends Controller
{
public function deleteFile($id)
    {
        $file = UploadedFile::find($id);
        Storage::delete(config('app.fileDestinationPath').'/'.$file->filename);
        return riderect()->to('uploaded');
    }
}

can anyone suggest me to solve this error? Thank you.

via Dasun