C:\Users\ksj94\AppData\Local\Temp\ccDTXWWE.ltrans0.ltrans.o: In function `main':

C:\Program Files\WindowsApps\ArduinoLLC.ArduinoIDE_1.8.21.0_x86__mdqgnx93n4wtt\hardware\arduino\avr\cores\arduino/main.cpp:46: undefined reference to `loop'

collect2.exe: error: ld returned 1 exit status

exit status 1
보드 Arduino/Genuino Uno 컴파일 

이런 오류가 뜨는데 어떻게 해결 하나요?

소스:

#include <LiquidCrystal.h>

LiquidCrystal lcd(12, 11, 2, 3, 4, 5);

void setup() {
  lcd.begin(16, 2);
}

void lope() {
  int light = analogRead(A0);

  lcd.clear();
  lcd.print("light : ");
  lcd.print(light);
  delay(500);
}