derleme hatası

C:\Users\FCAYM_~1\AppData\Local\Temp\cc799Lyb.ltrans0.ltrans.o: In function `main':

C:\Program Files (x86)\Arduino\hardware\arduino\avr\cores\arduino/main.cpp:43: undefined reference to `setup'

C:\Program Files (x86)\Arduino\hardware\arduino\avr\cores\arduino/main.cpp:46: undefined reference to `loop'

collect2.exe: error: ld returned 1 exit status

exit status 1
Arduino/Genuino Mega or Mega 2560 kartı için derleme hatası.

bu konu hakkında yardım edermisiniz bir türlü düzeltemedim

Every Arduino sketch must have a setup and a loop function. Even if you don't require any code in those functions, you still need to define them. Your sketch does not have these functions, thus the errors.

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