no matching function for call to 'esp8266webserver: :ESP8266WebServerTemp1ate<WiFiServer>: :on(const char [19], HTTPMethod, setup(): :_lambdal) ' candidates are:

[MisiekDP]

Hey, I have a problem with this library. Today I wanted to program an project with getting URL with parameters but all the time I got an errors. I use a PlatformioIO too. There are errors:

#include <Arduino.h>

#include <ESP8266WiFi.h>
#include <ESP8266HTTPClient.h>
#include <ESP8266WebServer.h>
#include <Adafruit_Sensor.h>
#include <DHT.h>
#include <ESPAsyncTCP.h>
#include <ESP8266WiFi.h>
// #include <AsyncTCP.h>
#include <ESPAsyncWebServer.h>

// Pins GPIO
int ledRed = 0;
int ledYellow = 2;
int buttonRed = 5;
int buttonYellow = 16;
DHT dht(4, DHT11);

// WiFi config
IPAddress ip(10, 6, 0, 120);        // Static IP adress
IPAddress gateway(10, 6, 0, 5);     // Gateway
IPAddress subnet(255, 255, 0, 0);   // IP maska
ESP8266WebServer server(80);        // Server port

...

void setup() {
  Serial.begin(9600);

 ...

  // Starting the server and assigning actions
  server.on("/", websiteLoad);
  server.on("/w1t", websiteLed1Toggle);
  server.on("/w2t", websiteLed2Toggle);
  server.on("/sendResponseIfESP8266Works", sendResponseIfESP8266Works);
  server.on("/sendData", sendData);
  server.on("/led1toggle", led1toggle);
  server.on("/led2toggle", led2toggle);
  // server.on("/seek_bar_led2_pwm", seekBarLed2PWM);
  // respond to GET requests on URL /heap

  server.on("/seek_bar_led2_pwm", HTTP_GET, [](AsyncWebServerRequest *request) {
    AsyncWebParameter* p = request->getParam(0);
    Serial.print("Param name: ");
    Serial.println(p->name());
    Serial.print("Param value: ");
    Serial.println(p->value());
    Serial.println("------");

    // server.send(200);
    request->send(200, "text/plain", "message received");
  });

  server.begin();
}

void loop() {
  // Waiting for client connecting
  server.handleClient();
...
}

[egrekov]

@MisiekDP #define WEBSERVER_H, will solve the compilation problem, but if you use constants like HTTP_POST, HTTP_PUT, then they will not work properly. issue904

#define WEBSERVER_H
#include "ESPAsyncWebServer.h"

[MisiekDP]

@MisiekDP #define WEBSERVER_H, will solve the compilation problem, but if you use constants like HTTP_POST, HTTP_PUT, then they will not work properly. issue904

#define WEBSERVER_H
#include "ESPAsyncWebServer.h"

Ok, thanks for reply :D But now I can't test it :/

[wiseda51]

Just starting to use AsyncWebServer and browsing through issues... You are crossing classes between old ESP8266WebServer (synchronous server run in loop) and AsyncWebServer (new ESP32/ESP8266 async webserver). So get rid of ESP8266WebServer.h and change your object to AsyncWebServer server(80);.

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