wifi config error when building.

[jwmeyer]

Getting this error when trying to build Luanode32:
#error "WiFi configuration check: WARNING, WIFI_RX_BA_WIN should not be larger than WIFI_DYNAMIC_RX_BUFFER_NUM!"
I have not found a solution.

[guneemwelloeux]

I am assuming that you are using the latest version (master branch) of the esp-idf framework.
I tried compiling LuaNode with the same version and had the same issue. I have worked around that by changing one of the values in the sdkconfig file:
CONFIG_ESP32_WIFI_DYNAMIC_RX_BUFFER_NUM=32 instead of 0.
However this is not enough, and the rest of the code is plagued with issues caused by breaking changes in the esp-idf framework.

I would recommend at this point to use the version of ESP-IDF that was current when the LuaNode code was last updated, most likely 2.1.0 or 2.1.1.

I did manage to build LuaNode with minimal changes and version 2.1.1 of the framework, and the associated toolchain.
I also managed to flash it onto my device, and got some sort of communication between the board and ESPlorer: I could issue some commands like node.heap() and get the chip id, and even some WiFi commands, but quickly ran into some issues when trying to set the WiFi mode (resulted in a crash dump).

The documentation can be found here: https://docs.espressif.com/projects/esp-idf/en/v2.1.1/get-started/index.html
When checking out esp-idf, you can add the -b v2.1.1 flag to the git comand line to checkout directly that version of the framework.
Also note that the latest toolchain from ESP is not compatible with that version of ESP-IDF (causing all sorts of warnings that came to life in GCC 8), so make sure you follow the instructions in the documentation on how to install the toolchain.