Error compiling for board Arduino Uno

[Jack_rib]

hello, I have received this error when trying to compiling to board any help would be brilliant

Thanks, J

/var/folders/rl/n70j7fl97mdd63t3mks1rl1r0000gn/T//cc7ShMut.ltrans0.ltrans.o: In function main': /Applications/Arduino.app/Contents/Java/hardware/arduino/avr/cores/arduino/main.cpp:46: undefined reference to loop'
collect2: error: ld returned 1 exit status
exit status 1
Error compiling for board Arduino Uno.

[pert]

Every Arduino sketch must have a setup() and a loop() function. Even if you don't want to put any code in the function, you still need to define the empty function. You are getting this error because your sketch does not have a loop() function.

loop() - Arduino Reference