C:\Users\�ӽÿ�\Documents\Arduino\libraries\Mecha_QMC5883L-master\MechaQMC5883.cpp: In member function 'int MechaQMC5883::read(int*, int*, int*)':

C:\Users\�ӽÿ�\Documents\Arduino\libraries\Mecha_QMC5883L-master\MechaQMC5883.cpp:53:30: warning: ISO C++ says that these are ambiguous, even though the worst conversion for the first is better than the worst conversion for the second:

   Wire.requestFrom(address, 7);

                              ^

In file included from C:\Users\�ӽÿ�\Documents\Arduino\libraries\Mecha_QMC5883L-master\MechaQMC5883.h:5:0,

                 from C:\Users\�ӽÿ�\Documents\Arduino\libraries\Mecha_QMC5883L-master\MechaQMC5883.cpp:1:

C:\Users\�ӽÿ�\Desktop\�Ƶ��̳�\arduino-nightly\hardware\arduino\avr\libraries\Wire\src/Wire.h:68:13: note: candidate 1: uint8_t TwoWire::requestFrom(int, int)

     uint8_t requestFrom(int, int);

             ^~~~~~~~~~~

C:\Users\�ӽÿ�\Desktop\�Ƶ��̳�\arduino-nightly\hardware\arduino\avr\libraries\Wire\src/Wire.h:65:13: note: candidate 2: uint8_t TwoWire::requestFrom(uint8_t, uint8_t)

     uint8_t requestFrom(uint8_t, uint8_t);

             ^~~~~~~~~~~

스케치는 프로그램 저장 공간 4594 바이트(14%)를 사용. 최대 32256 바이트.

전역 변수는 동적 메모리 418바이트(20%)를 사용, 1630바이트의 지역변수가 남음.  최대는 2048 바이트. 

이런오류뜨고 시리얼포트에 아무것도 안떠요