Compile error for ESP32 C3- based boards

[jnule1a]

During compilation for ESP32 C3-based boards (ESP32C3, Adafruit QT Py ESP32-C3, M5Stack Stamp C3) , the following error is displayed:
C:\Users\toto\Documents\Arduino\libraries\ESPAsyncWebServer-master\src\AsyncWebSocket.cpp: In member function 'IPAddress AsyncWebSocketClient::remoteIP()':
C:\Users\toto\Documents\Arduino\libraries\ESPAsyncWebServer-master\src\AsyncWebSocket.cpp:832:28: error: call of overloaded 'IPAddress(unsigned int)' is ambiguous
return IPAddress(0U);
^
In file included from C:\Users\toto\AppData\Local\Arduino15\packages\esp32\hardware\esp32\2.0.3\cores\esp32/Arduino.h:163,
from C:\Users\toto\Documents\Arduino\libraries\ESPAsyncWebServer-master\src\AsyncWebSocket.cpp:21:
C:\Users\toto\AppData\Local\Arduino15\packages\esp32\hardware\esp32\2.0.3\cores\esp32/IPAddress.h:51:5: note: candidate: 'IPAddress::IPAddress(const uint8_t*)'
IPAddress(const uint8_t *address);
^~~~~~~~~
C:\Users\toto\AppData\Local\Arduino15\packages\esp32\hardware\esp32\2.0.3\cores\esp32/IPAddress.h:50:5: note: candidate: 'IPAddress::IPAddress(uint32_t)'
IPAddress(uint32_t address);
^~~~~~~~~
C:\Users\toto\AppData\Local\Arduino15\packages\esp32\hardware\esp32\2.0.3\cores\esp32/IPAddress.h:29:7: note: candidate: 'constexpr IPAddress::IPAddress(const IPAddress&)'
class IPAddress: public Printable
^~~~~~~~~
Multiple libraries were found for "WiFi.h"
Used: C:\Users\toto\AppData\Local\Arduino15\packages\esp32\hardware\esp32\2.0.3\libraries\WiFi
Not used: C:\Program Files (x86)\Arduino\libraries\WiFi

Test conditions:

• Arduino IDE 1.8.19
• ESP32 board manager 2.0.3, M5Stack board manager 2.0.3
• If board is non C3 e.g. ESP32 Dev module, compilation is ok
• sketch:
  #include <Arduino.h>
  #include <WiFi.h>
  #include <AsyncTCP.h>
  #include <ESPAsyncWebServer.h>

const char* ssid = "nhatoi";
const char* password = "wifi-1nhatoi";

AsyncWebServer server(80);

void setup(void) {
}

void loop(void) {
}

[HugoML]

I got the same error that relates to ESP32-C3 only.

/Users/user/Documents/Arduino/libraries/ESPAsyncWebServer/src/AsyncWebSocket.cpp: In member function 'IPAddress AsyncWebSocketClient::remoteIP()':
/Users/user/Documents/Arduino/libraries/ESPAsyncWebServer/src/AsyncWebSocket.cpp:832:28: error: call of overloaded 'IPAddress(unsigned int)' is ambiguous
return IPAddress(0U);
^
In file included from /Users/user/Library/Arduino15/packages/esp32/hardware/esp32/2.0.3/cores/esp32/Arduino.h:163,
from /Users/user/Documents/Arduino/libraries/ESPAsyncWebServer/src/AsyncWebSocket.cpp:21:
/Users/user/Library/Arduino15/packages/esp32/hardware/esp32/2.0.3/cores/esp32/IPAddress.h:51:5: note: candidate: 'IPAddress::IPAddress(const uint8_t*)'
IPAddress(const uint8_t *address);
^~~~~~~~~
/Users/user/Library/Arduino15/packages/esp32/hardware/esp32/2.0.3/cores/esp32/IPAddress.h:50:5: note: candidate: 'IPAddress::IPAddress(uint32_t)'
IPAddress(uint32_t address);
^~~~~~~~~
/Users/user/Library/Arduino15/packages/esp32/hardware/esp32/2.0.3/cores/esp32/IPAddress.h:29:7: note: candidate: 'constexpr IPAddress::IPAddress(const IPAddress&)'
class IPAddress: public Printable
^~~~~~~~~
Multiple libraries were found for "WiFi.h"
Used: /Users/user/Library/Arduino15/packages/esp32/hardware/esp32/2.0.3/libraries/WiFi
Not used: /Applications/Arduino.app/Contents/Java/libraries/WiFi
Using library WiFi at version 2.0.0 in folder: /Users/user/Library/Arduino15/packages/esp32/hardware/esp32/2.0.3/libraries/WiFi

Using library AsyncTCP at version 1.1.1 in folder: /Users/user/Documents/Arduino/libraries/AsyncTCP
Using library ESPAsyncWebServer at version 1.2.3 in folder: /Users/user/Documents/Arduino/libraries/ESPAsyncWebServer
exit status 1
Error compiling for board ESP32C3 Dev Module.

[jnule1a]

At last, I found the following work around: edit libraries\ESPAsyncWebServer-master\src\AsyncWebSocket.cpp to replace “return IPAddress(0U)” by “return IPAddress(0ul)” or “return IPAddress((uin32_t) 0u)”

[HugoML]

@jnule1a You rock! I am not using WebSockets and changed the line as you said to return IPAddress ((uint32_t) OU), and the compiler took it. :)
Thanks so much!

[Zimbu98]

Typo in jnule1a's very helpful answer: return IPAddress((uin32_t) 0u) should be return IPAddress((uint32_t) 0u)

Notice the little t added

Thanks jnule1a!

[homonto]

it looks like this library is not maintained anymore ;-( I have the same error but thanks to you guys I solved it ;-)

[RohanJoydhar]

i was working on Esp32-c3 module from speed studio. with esp_dash getting same error. after editing
libraries\ESPAsyncWebServer-master\src\AsyncWebSocket.cpp to replace “return IPAddress(0U)” by “return IPAddress((uint32_t) 0u)” i finnaly got my IP with error, it is a weather station project cunnently trying ant10 sensor module, my code:

#include <WiFi.h>
#include <ESPAsyncWebServer.h>
#include <ESPDash.h>
#include <Ticker.h>
#include <Adafruit_AHTX0.h>

Adafruit_AHTX0 aht;
const char* ssid = "ESP32"; // Enter SSID here

Ticker periodicTicker;
AsyncWebServer server(80);
ESPDash dashboard(&server);

Card card1(&dashboard, TEMPERATURE_CARD, "Temperature", "°C");
Card card2(&dashboard, HUMIDITY_CARD, "Humidity", "%");

void updateCards() {
sensors_event_t humidity, temp;
aht.getEvent(&humidity, &temp);
float t = temp.temperature;
float h = humidity.relative_humidity;
card1.update(t);
card2.update(h);
dashboard.sendUpdates();
}

void setup() {
Serial.begin(115200);
aht.begin();
WiFi.softAP(ssid);
server.begin();
delay(100);
Serial.print("IP address: ");
Serial.println(WiFi.softAPIP());
periodicTicker.attach_ms(5000, updateCards);
}

void loop() {}
thnakyou @jnule1a @HugoML

[pyalot]

pump

[chezlog]

I had to use return IPAddress((uint32_t) 0K)

[adojang]

At last, I found the following work around: edit libraries\ESPAsyncWebServer-master\src\AsyncWebSocket.cpp to replace “return IPAddress(0U)” by “return IPAddress(0ul)” or “return IPAddress((uin32_t) 0u)”

This fixed it for me.

[FranzKropp]

Great! The Answer from jnule1a was also the solution for me!

[tahunus]

Since that line (832) is meant to return a 0.0.0.0 IP Address if no client is present (I think) besides @jnule1a solution, a IPAddress(0,0,0,0) also works.

[RomanAlexandroff]

@jnule1a, your solution worked like a charm! Thanks a lot! =)

[bag103]

Good afternoon .
I have modified the AsyncWebSocket.ccp library by replacing return IP Address((uin t 32_t) 0u); and continues with the error in any program that refers to <ESPAsyncWebServer.h>
any more ideas??
Thank you so much

[chezlog]

You might try the suggestion from tahunus - just use IP Address(0,0,0,0)

…

On Fri, Dec 29, 2023, 9:22 AM Ramon ***@***.***> wrote: Good afternoon . I have modified the AsyncWebSocket.ccp library by replacing return IP Address((uin t 32_t) 0u); and continues with the error in any program that refers to <ESPAsyncWebServer.h> any more ideas?? Thank you so much — Reply to this email directly, view it on GitHub <#1164 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/A6RMKBESC66WWDWWHL3OEELYL3U57AVCNFSM5XJX5HFKU5DIOJSWCZC7NNSXTN2JONZXKZKDN5WW2ZLOOQ5TCOBXGIZDAMBUG43Q> . You are receiving this because you commented.Message ID: ***@***.***>

[bag103]

Good morning.
Thank you for your help in my case the solution was

//return IPAddress(0U); original
return IPAddress((uint32_t)0); -------------------OK-------------------
//return IPAddress((uin t 32_t) 0u);
//return IPAddress(0,0,0,0);