Laravel4 Database Seeder error - Call to undefined method SeedDummyOrders::setContainer()

I have two tables in my database: - order_header - order_details I need some dummy data, so I created the following SeedDummyOrders class: ``` <?php class SeedDummyOrders { public function run() { DB::table('order_details')->delete(); DB::table('order_header')->delete(); $inventory_ids = range(1, 10); for ($i = 1; $i <= 5; $i++) { $order = new \OrderHeader; $order->owner_id = 1; $order->order_number = '100' . $i; $order->delivery_type = 'Standard'; $order->order_status = 'Received'; $order->address_line1 = $i . ', Some Street'; $order->city = 'London'; $order->postcode = 'ABC D' . $i; $order->country_code = 'GB'; $order->country_name = 'Great Britain'; $order->contact_name = 'Mr Person ' . $i; $order->contact_email = 'contact' . $i . '@mail.com'; $order->save(); $rand_keys = array_rand($inventory_ids, mt_rand(1, 5)); $detail_inventory_ids = []; foreach ($rand_keys as $k) $detail_inventory_ids[] = $inventory_ids[$k]; foreach ($detail_inventory_ids as $detail_inventory_id) { $detail = new \OrderDetail; $detail->order_id = $order->id; $detail->inventory_id = $detail_inventory_id; $detail->qty_ordered = mt_rand(1, 10); $detail->qty_picked = 0; $detail->qty_packed = 0; $detail->qty_dispatched = 0; $detail->save(); } } } } ``` I ran the seeder like this: php artisan db:seed --class=SeedDummyOrders When I do, I get the following errors: {"error":{"type":"Symfony\Component\Debug\Exception\FatalErrorException","message":"Call to undefined method SeedDummyOrders::setContainer()","file":"C:\wamp\www\MY_PROJECT\vendor\laravel\framework\src\Illuminate\Database\Console\SeedCommand.php","line":69}} Any ideas what this is about and how do you fix it?