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ESP32-P4 with custom_sdkconfig build fails: ip_addr vs ip_addr_t type mismatch (AsyncTCP.cpp) #66
Description
IDE / Tooling
pioarduino
What happened?
When building AsyncTCP for the ESP32-P4 with custom_sdkconfig set (even without any options), compilation fails due to mismatched types between [ip_addr] and [ip_addr_t].
To Reproduce use AsyncTCP as a dependency in a PlatformIO project targeting ESP32-P4 and set custom_sdkconfig.
Build the project.
Stack Trace
.pio/libdeps/esp32-p4/AsyncTCP/src/AsyncTCP.cpp:313:27: error: cannot convert 'ip_addr_t*' {aka 'ip4_addr*'} to 'ip_addr*'
e->client->_dns_found(&e->dns.addr);
^~~~~~~~~~~~
ip_addr_t* {aka ip4_addr*}
.pio/libdeps/esp32-p4/AsyncTCP/src/AsyncTCP.cpp:527:34: error: invalid application of 'sizeof' to incomplete type 'ip_addr'
memcpy(&e->dns.addr, ipaddr, sizeof(struct ip_addr));
^~~~~~~~~~~~~~~~~~~~
.pio/libdeps/esp32-p4/AsyncTCP/src/AsyncTCP.cpp:1164:12: error: no matching function for call to 'AsyncClient::connect(ip_addr&, uint16_t&)'
connect(*ipaddr, _connect_port);
^~~~~~~~~~~~~~~~~~~~~
Minimal Reproductible Example (MRE)
Empty project
#include <Arduino.h>
void setup(){
}
void loop(){
}
platformio.ini
[env:esp32-p4]
platform = https://github.com/pioarduino/platform-espressif32.git
lib_compat_mode = strict
lib_ldf_mode = chain
framework = arduino
board = esp32-p4
build_flags = -D CORE_DEBUG_LEVEL=5
monitor_speed = 115200
;if you remove custom_sdkconfig will compile
custom_sdkconfig =
; CONFIG_CACHE_L2_CACHE_256KB=y
custom_component_remove = espressif/esp_hosted
espressif/esp_wifi_remote
espressif/mdns
espressif/esp-dsp
espressif/esp_modem
espressif/esp32-camera
lib_deps =
ESP32Async/AsyncTCP
;ESP32Async/ESPAsyncWebServer
I confirm that:
- I have read the documentation.
- I have searched for similar discussions.
- I have searched for similar issues.
- I have looked at the examples.
- I have upgraded to the lasted version of AsyncTCP.
Activity
mathieucarbou commentedon Jun 3, 2025
Hi,
Did you try with v3.4.1 ?
Did you also try with esp32dev board (with v3.4.1 and with v3.4.3) ?
mathieucarbou commentedon Jun 3, 2025
I am not able to reproduce. If I create a pio file with your content and create src/main.cpp with your c++ content and run
pio runon CLI, I get :qniens commentedon Jun 3, 2025
After testing many settings, different boards and Async versions, I discovered that PlatformIO/Arduino doesn't seem to clear the build cache properly (or at least that's what it looks like). Sometimes a build works correctly, and other times it doesn’t—seemingly at random.
When manually deleting all cache/temp files in the project folder:
Folders:
Files:
And these settings, it will compile.
But disabling IPV6 support by uncommenting
CONFIG_LWIP_IPV6=nWill produce the ip_addr_t error.
.pio/libdeps/esp32-p4/AsyncTCP/src/AsyncTCP.cpp:313:27: error: cannot convert 'ip_addr_t*' {aka 'ip4_addr*'} to 'ip_addr*' e->client->_dns_found(&e->dns.addr); ^~~~~~~~~~~~ ip_addr_t* {aka ip4_addr*} .pio/libdeps/esp32-p4/AsyncTCP/src/AsyncTCP.cpp:527:34: error: invalid application of 'sizeof' to incomplete type 'ip_addr' memcpy(&e->dns.addr, ipaddr, sizeof(struct ip_addr)); ^~~~~~~~~~~~~~~~~~~~ .pio/libdeps/esp32-p4/AsyncTCP/src/AsyncTCP.cpp:1164:12: error: no matching function for call to 'AsyncClient::connect(ip_addr&, uint16_t&)' connect(*ipaddr, _connect_port); ^~~~~~~~~~~~~~~~~~~~~After an error, no other options, lib_deps or boards will compile. You need to manually clear all the caches & temp files.
To summarize for AsyncTCP:
It will not compile with these platformio settings:
mathieucarbou commentedon Jun 3, 2025
I suspect CONFIG_LWIP_IPV6 is required... Even Arduino 2 has it set and AsyncTCP is for Arduino 2 and 3. It was recently opened to esp-idf only but not sure it can be used with CONFIG_LWIP_IPV6=n, especially with framework = arduino.
Maybe @ willmmiles or @me-no-dev would know better...
I will move this to support ticket for now, until it is proven there is a real issue which is not related to a usage problem.