Syntax error or access violation: 1072 Key column 'user_id' doesn't exist in table (SQL: alter table `orders` add constraint `orders_user_id_foreign` foreign key (`user_id`) references `users` (`id`)) code example
Example: Syntax error or access violation: 1072 Key column 'user_id' doesn't exist in table (SQL: alter table `groups` add constraint `groups_user_id_foreign` foreign key (`user_id`) references `users` (`id`))
$table->integer('user_id')->unsigned();
$table->foreign('user_id')->references('id')->on('users');