搜索后，我找到了解决方案.如果您在 resources/views/errors 中没有指定的错误模板文件，则将显示默认的Laravel消息.只需在 resources/views/errors 中创建404.blade.php文件.

After searching i found out solution. If you have no specified error template files in resources/views/errors default Laravel message will be shown. Just create 404.blade.php file in resources/views/errors.