"dataFile.Flush() is ambiguous"?

Projects Programming
1

I apologize I am really new to Arduino, this is actually my first big project. I am trying to make an accelerometer that can measure recoil on a firearm. I found a github (https://github.com/ammolytics/projects/blob/master/accelerometer/sensor_logger.ino) with all of the information and I thought it would be a simply copy and paste. I am able to use the Real Time Clock, as well as read and write onto the SD card (using a adalogger feather wing for those). I am able to use the accelerometer in real time (using an adafruit LIS3DH), but when I try to import his code I get a "compilation error: request for member 'flush' is ambiguous" message. Any help is appreciated and of course if you need a closer look at the code or my wiring itself I'd be happy to share that as well.

2

Please post the code, using code tags. and the full error message.

3

Compiling the code from the link provided by the OP, I get the following error message:

/home/username/Downloads/projects-develop/accelerometer/sensor_logger/sensor_logger.ino: In function 'void setup()':
sensor_logger:145:12: error: request for member 'flush' is ambiguous
   dataFile.flush();
            ^~~~~
In file included from /home/username/Arduino/libraries/SdFat/src/FsLib/FsLib.h:31:0,
                 from /home/username/Arduino/libraries/SdFat/src/SdFat.h:33,
                 from /home/username/Downloads/projects-develop/accelerometer/sensor_logger/sensor_logger.ino:14:
/home/username/Arduino/libraries/SdFat/src/FsLib/FsFile.h:207:8: note: candidates are: void FsBaseFile::flush()
   void flush() { sync(); }
        ^~~~~
In file included from /home/username/.arduino15/packages/arduino/hardware/avr/1.8.6/cores/arduino/Stream.h:26:0,
                 from /home/username/.arduino15/packages/arduino/hardware/avr/1.8.6/cores/arduino/HardwareSerial.h:29,
                 from /home/username/.arduino15/packages/arduino/hardware/avr/1.8.6/cores/arduino/Arduino.h:233,
                 from /tmp/arduino_build_581747/sketch/sensor_logger.ino.cpp:1:
/home/username/.arduino15/packages/arduino/hardware/avr/1.8.6/cores/arduino/Print.h:90:18: note:                 virtual void Print::flush()
     virtual void flush() { /* Empty implementation for backward compatibility */ }
                  ^~~~~

Looks like a conflict with the Stream library. Since the function used by the SdFat library just calls sync(), you should be able to replace flush() with sync() in the sketch.

4

Wow you're amazing thank you! Replacing the flush() with sync() did the trick!