multiple definition of `ax_port_write'

[idolpx]

multiple definition of `ax_port_write'

[Noki]

The latest version of ESPAsyncTCP is broken. You can get it to compile by going back to a working version. Go to github and fetch this one e.g. by downloading the zip. Replace the files in the library folder.

https://github.com/me-no-dev/ESPAsyncTCP/tree/5987225cf66930b307a58f3ede3ba08830ee1c7b

However when I flash that firmware it hangs in a bootloop. Maybe you have more luck.

[martinlbb]

Seems there is a multiple declaration on these files:

• libESP8266WiFi.a
• libESPAsyncTCP_ID305.a

.pioenvs/d1_mini/libESP8266WiFi.a(WiFiClientSecure.o): In function `ax_port_read':
WiFiClientSecure.cpp:(.text.ax_port_read+0x14): multiple definition of `ax_port_read'
.pioenvs/d1_mini/libESPAsyncTCP_ID305.a(lwipr_compat.o):lwipr_compat.c:(.text.ax_port_read+0x14): first defined here

[martinlbb]

This may be related:
platformio/platformio-core#659

[martinlbb]

Previous idea was not related.
In fact, I add to go to my .platformio/src/ library and manually rename offending functions in ESPAsyncTCP_ID305/src/lwipr_compat.c

Offending functions are:

ax_port_read
ax_port_write
ax_get_file
ax_wdt_feed

It is also possible to use an ifndef call.

[martinlbb]

Thanks @Noki for your imput. Well, I didn't changed ESPAsyncTCP, I just changed ESPAsyncTCP_ID305 (another different lib).

After compiling, uploading firmware, uploading SPIFFS (see note about it on web README, there is a picture showing it), it works.

I did it with an ESP-12-Q (small stamp version w/o usb serial). If I powered it with a serial-USB module, it does not work (not enough juice). If I power up with regular 3.3V, everything okay

[idolpx]

Ok... try this. Open the terminal in PlatformIO and enter the following commands.

> pio lib uninstall 305 306
> pio lib install 305 --version=5987225cf6
> pio lib install 306 --version=dab3077f2b

That will revert those libraries to the previous versions that will actually compile.

[Noki]

I found out what caused the bootloop. The eeprom could not be read and did not get initialized automatically. I got it working again by calling:

eepromInitialize();
eepromSave();

[martinlbb]

Thanks all :)