Invalid conversion from 'const AsyncWebParameter*' to 'AsyncWebParameter*'

[UnivespWagnerQueiroz]

I try to get the list of parameters with the example below, however I get the error below:

Compilation error: invalid conversion from 'const AsyncWebParameter*' to 'AsyncWebParameter*' [-fpermissive]

Someone can help me with this? I'm using Arduino 2.3.2 on Windows and Linux.

#include "WiFi.h"
#include "ESPAsyncWebServer.h"
 
const char* ssid = "yourNetworkName";
const char* password =  "yourNetworkPass";
 
AsyncWebServer server(80);
 
void setup(){
  Serial.begin(115200);
 
  WiFi.begin(ssid, password);
 
  while (WiFi.status() != WL_CONNECTED) {
    delay(1000);
    Serial.println("Connecting to WiFi..");
  }
 
  Serial.println(WiFi.localIP());
 
  server.on("/", HTTP_GET, [](AsyncWebServerRequest *request){
 
    int paramsNr = request->params();
    Serial.println(paramsNr);
 
    for(int i=0;i<paramsNr;i++){
 
        AsyncWebParameter* p = request->getParam(i);
        Serial.print("Param name: ");
        Serial.println(p->name());
        Serial.print("Param value: ");
        Serial.println(p->value());
        Serial.println("------");
    }
 
    request->send(200, "text/plain", "message received");
  });
 
  server.begin();
}
 
void loop(){}

[Baptou88]

Hello @UnivespWagnerQueiroz

Replace the line:

AsyncWebParameter* p = request->getParam(i);

by:

const AsyncWebParameter* p = request->getParam(i);