Compile error

[yctn]

Hi,

im trying to compile the sketch using the arduino IDE.

i get the following error:
Archiving built core (caching) in: /var/folders/6r/tdsrvmt14wvfj9ryqjmrtlmm0000gn/T/arduino_cache_136986/core/core_esp8266_esp8266_d1_mini_CpuFrequency_80,UploadSpeed_921600,FlashSize_4M3M_e7d7afb0d813ff49b3b3c7a623d8ce4d.a
sketch/boiler.ino.cpp.o: In function _float_to_char(char*, float, unsigned char)': /Users/user/Documents/Arduino/boiler/boiler.ino:609: undefined reference to strtof'
sketch/boiler.ino.cpp.o: In function MQTTcallback(char*, unsigned char*, unsigned char)': /Users/user/Documents/Arduino/boiler/boiler.ino:609: undefined reference to strtof'
sketch/boiler.ino.cpp.o: In function myDebugCallback()': /Users/user/Documents/Arduino/boiler/boiler.ino:400: undefined reference to strtof'
sketch/emsuart.cpp.o: In function emsuart_recvTask(ETSEventTag*)': emsuart.cpp:(.irom0.text+0x7c): undefined reference to system_os_task(void ()(ETSEventTag), unsigned char, ETSEventTag*, unsigned char)'
emsuart.cpp:(.irom0.text+0x80): undefined reference to system_uart_swap()' sketch/emsuart.cpp.o: In function emsuart_init()':
sketch/emsuart.cpp:116: undefined reference to system_os_task(void (*)(ETSEventTag*), unsigned char, ETSEventTag*, unsigned char)' sketch/emsuart.cpp:121: undefined reference to system_uart_swap()'
sketch/emsuart.cpp.o:(.text._ZL23emsuart_rx_intr_handlerPv+0x1c): undefined reference to system_os_post(unsigned char, unsigned int, unsigned int)' sketch/emsuart.cpp.o: In function emsuart_rx_intr_handler':
sketch/emsuart.cpp:55: undefined reference to `system_os_post(unsigned char, unsigned int, unsigned int)'
Multiple libraries were found for "PubSubClient.h"
collect2: error: ld returned 1 exit status
Used: /Users/user/Documents/Arduino/libraries/PubSubClient
Not used: /Users/user/Documents/Arduino/libraries/ESP8266_Microgear
exit status 1
Error compiling for board WeMos D1 R2 & mini.

what could this be?

[proddy]

I don't use the Arduino IDE (as explained in the doc). Looks like some library references are missing. My advice would be to follow my guidelines in https://github.com/proddy/EMS-ESP-Boiler#using-platformio-standalone. If you find a way that works with Arduino IDE let me know and I'll update the doc.