Arduino Upload Error on VS Code

[KC014]

The following picture is the actual device of my Arduino microcontroller.

Here is some basic information about this microcontroller:
Chip: ATmega4809
Clock: 20MHz
Memory: flash-48KB SRAM-6KB
Interfaces: USB, SPI, I2C, UART
Dimensions: 18 * 45mm
Device website link: https://store.arduino.cc/products/arduino-nano-every-with-headers

The following part is the code I just wrote on VS Code to test my Arduino microcontroller device, and this code has no compiling errors.
`#include <Arduino.h>

// put function declarations here:
// int myFunction(int, int);

void setup() {
// put your setup code here, to run once:
// int result = myFunction(2, 3);
pinMode(LED_BUILTIN, OUTPUT); // Initialize the LED pin as an output
}

void loop() {
// put your main code here, to run repeatedly:
digitalWrite(LED_BUILTIN, HIGH); // Turn the LED on (HIGH is the voltage level)
delay(200); // Wait for a second
digitalWrite(LED_BUILTIN, LOW); // Turn the LED off (LOW is the voltage level)
delay(200); // Wait for a second
}

// put function definitions here:
/*
int myFunction(int x, int y) {
return x + y;
}
*/`

When I upload the code above to my Arduino microcontroller device by using the Arduino IDE, the code can be uploaded successfully without any errors. However, when I try to upload my code to my Arduino microcontroller on VS Code based on PlatformIO, VS Code gives me the following error messages. I have tried for several days, but still can't resolve this issue. I'm not sure what happened to my Arduino microcontroller device.
Verbose mode can be enabled via -v, --verbose option
CONFIGURATION: https://docs.platformio.org/page/boards/atmelmegaavr/ATmega4809.html
PLATFORM: Atmel megaAVR (1.9.0) > ATmega4809
HARDWARE: ATMEGA4809 16MHz, 6KB RAM, 48KB Flash
PACKAGES:

• framework-arduino-megaavr-megacorex @ 1.1.2
• tool-avrdude @ 1.70100.0 (7.1.0)
• toolchain-atmelavr @ 1.70300.191015 (7.3.0)
  LDF: Library Dependency Finder -> https://bit.ly/configure-pio-ldf
  LDF Modes: Finder ~ chain, Compatibility ~ soft
  Found 12 compatible libraries
  Scanning dependencies...
  No dependencies
  Building in release mode
  Checking size .pio\build\ATmega4809\firmware.elf
  Advanced Memory Usage is available via "PlatformIO Home > Project Inspect"
  RAM: [ ] 0.1% (used 4 bytes from 6144 bytes)
  Flash: [ ] 1.6% (used 776 bytes from 49152 bytes)
  Configuring upload protocol...
  AVAILABLE: jtag2updi
  CURRENT: upload_protocol = jtag2updi
  Looking for upload port...
  Using manually specified: COM3
  Uploading .pio\build\ATmega4809\firmware.hex
  avrdude warning: attempt 1 of 10: sign-on command: status -1
  avrdude warning: attempt 2 of 10: sign-on command: status -1
  avrdude warning: attempt 3 of 10: sign-on command: status -1
  avrdude warning: attempt 4 of 10: sign-on command: status -1
  avrdude warning: attempt 5 of 10: sign-on command: status -1
  avrdude warning: attempt 6 of 10: sign-on command: status -1
  avrdude warning: attempt 7 of 10: sign-on command: status -1
  avrdude warning: attempt 8 of 10: sign-on command: status -1
  avrdude warning: attempt 9 of 10: sign-on command: status -1
  avrdude warning: attempt 10 of 10: sign-on command: status -1
  avrdude error: timeout/error communicating with programmer (status -1)
  avrdude error: unable to open programmer jtag2updi on port COM3

avrdude done. Thank you.

*** [upload] Error 1

Can anyone tell me what happened? Why can I upload my code successfully on Arduino IDE but can't do so on VS Code?

[valeros]

Hi @KC014, there is a proper board ID nano_every for the Arduino Nano Every board, you need to use it instead of the generic ATmega4809.