neopixel compile error

Other Hardware LEDs and Multiplexing
1

I run into an same problem :

In function `main':

:(.text.startup+0xe0): undefined reference to `setup'

:(.text.startup+0xe8): undefined reference to `loop'

collect2.exe: error: ld returned 1 exit status

Meerdere bibliotheken gevonden voor "Adafruit_NeoPixel.h"
Gebruikt: C:\Arduino
Bibliotheek Adafruit_NeoPixel op versie 1.3.0 in map: C:\Arduino 1.8.10 wordt gebruikt
exit status 1
Fout bij het compileren voor board Arduino Mega ADK

So this is not only happening with the online tools!

Anybody an idea how to solve?

2

@HJ_SK

TOPIC SPLIT

Your question is not related to the ONLINE editor and is a different topic.
Please READ THIS and add any additional information.

There are also additional language sections if you prefer to be moved there.

Bob.

3

It tells you in the error message. You have not defined a setup and loop function.

You need to have these for the Arduino code to run.

Anybody an idea how to solve?

Write a setup and loop function.