An error occurred while uploading the sketch

Hello, im pready neew to arduino. i would be soooo happy if u helped me. I dont know what happend to my arduino uno. This is the message that i receved when i tried to upload.

Sketch uses 882 bytes (2%) of program storage space. Maximum is 32256 bytes.
Global variables use 9 bytes (0%) of dynamic memory, leaving 2039 bytes for local variables. Maximum is 2048 bytes.
An error occurred while uploading the sketch
avrdude: ser_open(): can't open device "\.\COM3": A device which does not exist was specified.

Check the device manager in your computer if Arduino is connected and present. Also, driver for Arduino must be installed on Win.

Thanks for advice, but that didnt worked :frowning:

Didn't work what. In the device manager, in OS, is Arduino present as device?

I realy dont understand what are u saying. Im neew to theese things.

can u pls explain?

OK. Which OS you have?

Also read this: https://www.arduino.cc/en/Guide/ArduinoUno

Tnx i did what u sad and now ewerything works tnku soo much!!!

OK, nice to read. Have a fun with Arduino!