hello, I am new to platformio,i try to build the oled from github website. from platformio.int i have :
[env:esp32dev]
platform = espressif32
board = esp32dev
framework = espidf
monitor_baud = 115200i follow exactly the instructions but after build the project i got the errors: undefined reference to `ssd1306_draw_string' and other functions in main.c have anybody any idea about this problem and how to solve them Thank you windows 10
