c:/users/otistoshiba/.platformio/packages/toolchain-xtensa/bin/../lib/gcc/xtensa-lx106-elf/10.3.0/../../../../xtensa-lx106-elf/bin/ld.exe: .pio\build\nodemcu\src\main.cpp.o:(.text.setup+0x4): undefined reference to `_ZN8GPIO_Pin2OnEh'
collect2.exe: error: ld returned 1 exit status
*** [.pio\build\nodemcu\firmware.elf] Error 1