Examples fail to build under platformio - Missing SPI.h

[italocjs]

• board: ESP32WROOM32
• IDE: Platformio 1.74.3 + Arduino Framework

The example fails to build because SPI.h is not found, as the following messages indicate

In file included from .pio/libdeps/esp32dev/Adafruit BusIO/Adafruit_BusIO_Register.h:10,
                 from .pio/libdeps/esp32dev/Adafruit BusIO/Adafruit_BusIO_Register.cpp:1:
.pio/libdeps/esp32dev/Adafruit BusIO/Adafruit_SPIDevice.h:9:10: fatal error: SPI.h: No such file or directory

Platformio suggest to include another library using its dependencies, but SPI is already part of the framwork, to fix the error the user just need to include SPI before the rest of the example code.

Example:

#include <Arduino.h>
#include <SPI.h>

// Date and time functions using a PCF8563 RTC connected via I2C and Wire lib
#include "RTClib.h"
RTC_PCF8563 rtc;
char daysOfTheWeek[7][12] = {"Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday"};
~rest of example

Maybe adding this tip, as a comment on the example can help other users to avoid this error.

[AVLChris]

I've found that if you add "SPI" in your platformio.ini file it takes care of the issue.

[env:esp32dev]
platform = espressif32
board = esp32dev
framework = arduino
lib_deps = 
	SPI
	adafruit/RTClib@^2.1.1
	arduino-libraries/NTPClient@^3.2.1
	adafruit/Adafruit BusIO@^1.14.1
monitor_speed = 115200