session_start(): Cannot send session cookie - headers already sent by (output started at /var/www/html/match/runtime/classmap.php:1)

Call Stack

1. in Session.php line 534
2. at Error::appError(2, 'session_start(): Can...', '/var/www/html/match/...', 534, [])
3. at session_start() in Session.php line 534
4. at Session->start() in Session.php line 200
5. at Session->init() in Session.php line 216
6. at Session->boot() in Session.php line 489
7. at Session->has('user')
8. at call_user_func_array([object(Session), 'has'], ['user']) in Facade.php line 123
9. at Facade::__callStatic('has', ['user']) in BaseController.php line 20
10. at BaseController->initialize() in Controller.php line 68
11. at Controller->__construct(object(App))
12. at ReflectionClass->newInstanceArgs([object(App)]) in Container.php line 439
13. at Container->invokeClass('app\web\controller\M...', []) in Container.php line 284
14. at Container->make('app\web\controller\M...') in Container.php line 516
15. at Container->__get('app\web\controller\M...') in App.php line 725
16. at App->controller('match', 'controller', true, 'Error') in Module.php line 94
17. at Module->exec() in Dispatch.php line 168
18. at Dispatch->run() in App.php line 432
19. at App->think\{closure}(object(Request), object(Closure), null)
20. at call_user_func_array(object(Closure), [object(Request), object(Closure), null]) in Middleware.php line 185
21. at Middleware->think\{closure}(object(Request))
22. at call_user_func(object(Closure), object(Request)) in Middleware.php line 130
23. at Middleware->dispatch(object(Request)) in App.php line 435
24. at App->run() in index.php line 21