do not compile on c3 in vsc

[jovialcupid9-coder]

i cannot compile it on c3 in vsc using -std=gnu++17

no instance of overloaded function "AsyncWebServerRequest::beginResponse" matches the argument listC/C++(304)
AsyncWebSerial.cpp(33, 22): argument types are: (int, const char [10], const uint8_t [2311], unsigned long)
AsyncWebSerial.cpp(33, 22): object type is: AsyncWebServerRequest

'class AsyncWebSocketClient' has no member named 'setCloseClientOnQueueFull'
class "AsyncWebSocketClient" has no member "setCloseClientOnQueueFull"C/C++(135)