src/main.cpp: In function 'void startWebserver()':

[thoduh]

I've been working on this script for days, but just can't get any further.
I use PlatformIO, but I'm still at the beginning.

This error always appears

`Compiling .pio/build/esp32dev/src/main.cpp.o

src/main.cpp: In function 'void startWebserver()':
src/main.cpp:269:36: error: 'WebServerRequest' has not been declared
webServer.on("/", HTTP_GET, [](WebServerRequest request){
^~~~~~~~~~~~~~~~
src/main.cpp: In lambda function:
src/main.cpp:270:16: error: request for member 'send' in ' request', which is of non-class type 'int'
request->send(SPIFFS, "/wificonfig.html", String(), false, processor);
^~~~
src/main.cpp: In function 'void startWebserver()':
src/main.cpp:271:6: error: no matching function for call to 'WebServer::on(const char [2], http_method, startWebserver()::<lambda(int*)>)'
});
^`