I am new to Arduino. Please Instruct me to solve this errors
Arduino: 1.8.9 (Windows 10), Board: "Arduino/Genuino Uno"
C:\Users\OMGANE~1\AppData\Local\Temp\ccfmLMZc.ltrans0.ltrans.o: In function `loop':
C:\Users\om ganeshaya namaha\Documents\Arduino\TESTING\example\BQ20Z45/BQ20Z45.ino:23: undefined reference to `BQ20Z45::GetTemp()'
C:\Users\om ganeshaya namaha\Documents\Arduino\TESTING\example\BQ20Z45/BQ20Z45.ino:26: undefined reference to `BQ20Z45::GetVoltage()'
C:\Users\om ganeshaya namaha\Documents\Arduino\TESTING\example\BQ20Z45/BQ20Z45.ino:29: undefined reference to `BQ20Z45::GetCurrent()'
collect2.exe: error: ld returned 1 exit status
exit status 1
Error compiling for board Arduino/Genuino Uno.
This report would have more information with
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option enabled in File -> Preferences.
BQ20Z45.ino (1.2 KB)
BQ20Z45.cpp (7.89 KB)
BQ20Z45.h (4.54 KB)