Help needed - Error compiling for board Arduino Uno

Projects Programming
1

I'm brand new to Arduino and I'm trying very simple code. However, this error message appeared and I don't know how to fix it.

Here is my code:

image
image371×537 12.7 KB

And here is the error code:
Arduino: 1.8.19 (Windows Store 1.8.57.0) (Windows 10), Board: "Arduino Uno"

c:/program files/windowsapps/arduinollc.arduinoide_1.8.57.0_x86__mdqgnx93n4wtt/hardware/tools/avr/bin/../lib/gcc/avr/7.3.0/../../../../avr/lib/avr5/crtatmega328p.o:(.init9+0x0): undefined reference to `main'

collect2.exe: error: ld returned 1 exit status

Multiple libraries were found for "Adafruit_SSD1306.h"

Used: C:\Users\ltlau\OneDrive\Documents\Arduino\libraries\Adafruit_SSD1306

Not used: C:\Users\ltlau\OneDrive\Documents\Arduino\libraries\Adafruit_SSD1306-master

exit status 1

Error compiling for board Arduino Uno.

This report would have more information with
"Show verbose output during compilation"
option enabled in File -> Preferences.

Can someone help me please?

2

Picture of code are nearly worthless. I cannot copy the code and paste into the IDE or text editor for examination or to verify the code to try to determine the cause of the error. Read the forum guidelines to see how to properly post code and some information on how to get the most from this forum.
Use the IDE autoformat tool (ctrl-t or Tools, Auto format) before posting code in code tags.

3

Very odd error. It looks like maybe some kind of installation problem.

This report would have more information with
"Show verbose output during compilation"
option enabled in File -> Preferences.

Could you do that and post a reply with all of the messages?