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How to fix PlatformIO Adafruit_BusIO_Register.h: No Such File or Directory

Problem:

When compiling your PlatformIO firmware, you see an error message like

example-3.txt
.pio/libdeps/esp32dev/Adafruit INA219/Adafruit_INA219.h:21:37: fatal error: Adafruit_BusIO_Register.h: No such file or directory

*********************************************************************************
* Looking for Adafruit_BusIO_Register.h dependency? Check our library registry!
*
* CLI  > platformio lib search "header:Adafruit_BusIO_Register.h"
* Web  > https://platformio.org/lib/search?query=header:Adafruit_BusIO_Register.h
*
*********************************************************************************

Solution

Add adafruit/Adafruit BusIO @ ^1.9.3 to the lib_deps in platformio.ini, for example, before:

example-2.ini
    adafruit/Adafruit INA219 @ ^1.1.1

After:

example-1.ini
    adafruit/Adafruit INA219 @ ^1.1.1
    adafruit/Adafruit BusIO @ ^1.9.3

and then recompile.

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