Compile error on ESP32 in Adafruit_I2CDevice

Using Arduino Programming Questions
1

Even after trying various suggestions and different "wire" libraries, like FlexWire, I still get a lot of errors compiling my code.

I am using an ESP32 Dev Board, and including RTCLib.h, which, via the Adafruit_I2CDevice, includes Wire.h

Although it seems to compile successfully, all the errors below are thrown during compilation, originating from Adafruit_I2CDevice.h

I also want to use Wire.h for another I2C device, the MPU6050 accelerometer.

In file included from c:\Users\Jacques\Documents\Arduino\libraries\Adafruit_BusIO/Adafruit_I2CDevice.h:5,
                 from c:\Users\Jacques\Documents\Arduino\libraries\RTClib\src/RTClib.h:25,
                 from D:\Onedrive\Arduino\arduDash\arduDash_ESP32_HAYABUSA\arduDash_ESP32_HAYABUSA.ino:1:
C:\Users\Jacques\AppData\Local\Arduino15\packages\esp32\hardware\esp32\2.0.14\libraries\Wire\src/Wire.h: In function 'void loop()':
C:\Users\Jacques\AppData\Local\Arduino15\packages\esp32\hardware\esp32\2.0.14\libraries\Wire\src/Wire.h:126:13: note: candidate 1: 'uint8_t TwoWire::requestFrom(int, int, int)'
     uint8_t requestFrom(int address, int size, int sendStop);
             ^~~~~~~~~~~
C:\Users\Jacques\AppData\Local\Arduino15\packages\esp32\hardware\esp32\2.0.14\libraries\Wire\src/Wire.h:122:12: note: candidate 2: 'size_t TwoWire::requestFrom(uint8_t, size_t, bool)'
     size_t requestFrom(uint8_t address, size_t len, bool stopBit);
            ^~~~~~~~~~~
C:\Users\Jacques\AppData\Local\Arduino15\packages\esp32\hardware\esp32\2.0.14\libraries\Wire\src/Wire.h:126:13: note: candidate 1: 'uint8_t TwoWire::requestFrom(int, int, int)'
     uint8_t requestFrom(int address, int size, int sendStop);
             ^~~~~~~~~~~
C:\Users\Jacques\AppData\Local\Arduino15\packages\esp32\hardware\esp32\2.0.14\libraries\Wire\src/Wire.h:120:13: note: candidate 2: 'uint8_t TwoWire::requestFrom(uint16_t, uint8_t, bool)'
     uint8_t requestFrom(uint16_t address, uint8_t size, bool sendStop);
             ^~~~~~~~~~~
C:\Users\Jacques\AppData\Local\Arduino15\packages\esp32\hardware\esp32\2.0.14\libraries\Wire\src/Wire.h:126:13: note: candidate 1: 'uint8_t TwoWire::requestFrom(int, int, int)'
     uint8_t requestFrom(int address, int size, int sendStop);
             ^~~~~~~~~~~
C:\Users\Jacques\AppData\Local\Arduino15\packages\esp32\hardware\esp32\2.0.14\libraries\Wire\src/Wire.h:119:12: note: candidate 2: 'size_t TwoWire::requestFrom(uint16_t, size_t, bool)'
     size_t requestFrom(uint16_t address, size_t size, bool sendStop);
            ^~~~~~~~~~~
C:\Users\Jacques\AppData\Local\Arduino15\packages\esp32\hardware\esp32\2.0.14\libraries\Wire\src/Wire.h:126:13: note: candidate 1: 'uint8_t TwoWire::requestFrom(int, int, int)'
     uint8_t requestFrom(int address, int size, int sendStop);
             ^~~~~~~~~~~
C:\Users\Jacques\AppData\Local\Arduino15\packages\esp32\hardware\esp32\2.0.14\libraries\Wire\src/Wire.h:122:12: note: candidate 2: 'size_t TwoWire::requestFrom(uint8_t, size_t, bool)'
     size_t requestFrom(uint8_t address, size_t len, bool stopBit);
            ^~~~~~~~~~~
C:\Users\Jacques\AppData\Local\Arduino15\packages\esp32\hardware\esp32\2.0.14\libraries\Wire\src/Wire.h:126:13: note: candidate 1: 'uint8_t TwoWire::requestFrom(int, int, int)'
     uint8_t requestFrom(int address, int size, int sendStop);
             ^~~~~~~~~~~
C:\Users\Jacques\AppData\Local\Arduino15\packages\esp32\hardware\esp32\2.0.14\libraries\Wire\src/Wire.h:122:12: note: candidate 2: 'size_t TwoWire::requestFrom(uint8_t, size_t, bool)'
     size_t requestFrom(uint8_t address, size_t len, bool stopBit);
            ^~~~~~~~~~~
C:\Users\Jacques\AppData\Local\Arduino15\packages\esp32\hardware\esp32\2.0.14\libraries\Wire\src/Wire.h:126:13: note: candidate 1: 'uint8_t TwoWire::requestFrom(int, int, int)'
     uint8_t requestFrom(int address, int size, int sendStop);
             ^~~~~~~~~~~
C:\Users\Jacques\AppData\Local\Arduino15\packages\esp32\hardware\esp32\2.0.14\libraries\Wire\src/Wire.h:120:13: note: candidate 2: 'uint8_t TwoWire::requestFrom(uint16_t, uint8_t, bool)'
     uint8_t requestFrom(uint16_t address, uint8_t size, bool sendStop);
             ^~~~~~~~~~~
C:\Users\Jacques\AppData\Local\Arduino15\packages\esp32\hardware\esp32\2.0.14\libraries\Wire\src/Wire.h:126:13: note: candidate 1: 'uint8_t TwoWire::requestFrom(int, int, int)'
     uint8_t requestFrom(int address, int size, int sendStop);
             ^~~~~~~~~~~
C:\Users\Jacques\AppData\Local\Arduino15\packages\esp32\hardware\esp32\2.0.14\libraries\Wire\src/Wire.h:119:12: note: candidate 2: 'size_t TwoWire::requestFrom(uint16_t, size_t, bool)'
     size_t requestFrom(uint16_t address, size_t size, bool sendStop);
            ^~~~~~~~~~~
C:\Users\Jacques\AppData\Local\Arduino15\packages\esp32\hardware\esp32\2.0.14\libraries\Wire\src/Wire.h:126:13: note: candidate 1: 'uint8_t TwoWire::requestFrom(int, int, int)'
     uint8_t requestFrom(int address, int size, int sendStop);
             ^~~~~~~~~~~
C:\Users\Jacques\AppData\Local\Arduino15\packages\esp32\hardware\esp32\2.0.14\libraries\Wire\src/Wire.h:122:12: note: candidate 2: 'size_t TwoWire::requestFrom(uint8_t, size_t, bool)'
     size_t requestFrom(uint8_t address, size_t len, bool stopBit);
            ^~~~~~~~~~~
C:\Users\Jacques\AppData\Local\Arduino15\packages\esp32\hardware\esp32\2.0.14\libraries\Wire\src/Wire.h: In function 'void calculate_IMU_error()':
C:\Users\Jacques\AppData\Local\Arduino15\packages\esp32\hardware\esp32\2.0.14\libraries\Wire\src/Wire.h:126:13: note: candidate 1: 'uint8_t TwoWire::requestFrom(int, int, int)'
     uint8_t requestFrom(int address, int size, int sendStop);
             ^~~~~~~~~~~
C:\Users\Jacques\AppData\Local\Arduino15\packages\esp32\hardware\esp32\2.0.14\libraries\Wire\src/Wire.h:122:12: note: candidate 2: 'size_t TwoWire::requestFrom(uint8_t, size_t, bool)'
     size_t requestFrom(uint8_t address, size_t len, bool stopBit);
            ^~~~~~~~~~~
C:\Users\Jacques\AppData\Local\Arduino15\packages\esp32\hardware\esp32\2.0.14\libraries\Wire\src/Wire.h:126:13: note: candidate 1: 'uint8_t TwoWire::requestFrom(int, int, int)'
     uint8_t requestFrom(int address, int size, int sendStop);
             ^~~~~~~~~~~
C:\Users\Jacques\AppData\Local\Arduino15\packages\esp32\hardware\esp32\2.0.14\libraries\Wire\src/Wire.h:120:13: note: candidate 2: 'uint8_t TwoWire::requestFrom(uint16_t, uint8_t, bool)'
     uint8_t requestFrom(uint16_t address, uint8_t size, bool sendStop);
             ^~~~~~~~~~~
C:\Users\Jacques\AppData\Local\Arduino15\packages\esp32\hardware\esp32\2.0.14\libraries\Wire\src/Wire.h:126:13: note: candidate 1: 'uint8_t TwoWire::requestFrom(int, int, int)'
     uint8_t requestFrom(int address, int size, int sendStop);
             ^~~~~~~~~~~
C:\Users\Jacques\AppData\Local\Arduino15\packages\esp32\hardware\esp32\2.0.14\libraries\Wire\src/Wire.h:119:12: note: candidate 2: 'size_t TwoWire::requestFrom(uint16_t, size_t, bool)'
     size_t requestFrom(uint16_t address, size_t size, bool sendStop);
            ^~~~~~~~~~~
C:\Users\Jacques\AppData\Local\Arduino15\packages\esp32\hardware\esp32\2.0.14\libraries\Wire\src/Wire.h:126:13: note: candidate 1: 'uint8_t TwoWire::requestFrom(int, int, int)'
     uint8_t requestFrom(int address, int size, int sendStop);
             ^~~~~~~~~~~
C:\Users\Jacques\AppData\Local\Arduino15\packages\esp32\hardware\esp32\2.0.14\libraries\Wire\src/Wire.h:122:12: note: candidate 2: 'size_t TwoWire::requestFrom(uint8_t, size_t, bool)'
     size_t requestFrom(uint8_t address, size_t len, bool stopBit);
            ^~~~~~~~~~~
Sketch uses 323921 bytes (24%) of program storage space. Maximum is 1310720 bytes.
Global variables use 22504 bytes (6%) of dynamic memory, leaving 305176 bytes for local variables. Maximum is 327680 bytes.
2

If there were errors then the code would not compile

What is being reported is that various versions of library functions were found

3

If it compiles then those are warnings not errors.

Does the code run OK ?

4

I will setup a small piece of test code to see if it does in fact work. It looked like errors to me due to all being in red. My apologies if there was some ignorance in that assumption.

5

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