Arduino Code says undefined reference to setup and loop

Projects Programming
1

I've been working on some coding for a science project and I've been having some trouble, there is an error code that I don't quite understand the error codes that are occuring, I don't know much about coding so if you could explain in the simplest way, thank you (i attached my code)

This is the error message

Build options changed, rebuilding all
core.a(main.cpp.o): In function main': /Applications/Arduino.app/Contents/Java/hardware/arduino/avr/cores/arduino/main.cpp:40: undefined reference to setup'
/Applications/Arduino.app/Contents/Java/hardware/arduino/avr/cores/arduino/main.cpp:43: undefined reference to `loop'
collect2: error: ld returned 1 exit status
Error compiling.

Rube.ino (1.65 KB)

2

Your arduino code needs the functions setup() and loop(). Both are missing in your code.

You probably want to add something like

void setup()
{
  setupBlink();
  setupFade();
}

void loop()
{
  loopBlink();
  loopFade();
}