the selected serial port _ does not exist or your board is not connected

Arduino: 1.6.9 (Windows 10), Board: “Generic ESP8266 Module, 80 MHz, Flash, Disabled, All SSL ciphers (most compatible), ck, 26 MHz, 40MHz, DOUT (compatible), 512K (no SPIFFS), 2, nonos-sdk 2.2.1 (legacy), v2 Lower Memory, Disabled, None, Only Sketch, 115200”

Sketch uses 257,712 bytes (51%) of program storage space. Maximum is 499,696 bytes.
Global variables use 26,572 bytes (32%) of dynamic memory, leaving 55,348 bytes for local variables. Maximum is 81,920 bytes.
esptool.py v2.6
2.6
esptool.py v2.6
Serial port COM6
Connecting……____Traceback (most recent call last):
File “C:\Users\Prithvi K A\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\2.5.1/tools/upload.py”, line 25, in
esptool.main(fakeargs)
File “C:/Users/Prithvi K A/AppData/Local/Arduino15/packages/esp8266/hardware/esp8266/2.5.1/tools/esptool\esptool.py”, line 2653, in main
esp.connect(args.before)
File “C:/Users/Prithvi K A/AppData/Local/Arduino15/packages/esp8266/hardware/esp8266/2.5.1/tools/esptool\esptool.py”, line 468, in connect
raise FatalError(‘Failed to connect to %s: %s’ % (self.CHIP_NAME, last_error))
esptool.FatalError: Failed to connect to ESP8266: Timed out waiting for packet header
_
the selected serial port _
does not exist or your board is not connected

Sketch uses 257,712 bytes (51%) of program storage space. Maximum is 499,696 bytes.
Global variables use 26,572 bytes (32%) of dynamic memory, leaving 55,348 bytes for local variables. Maximum is 81,920 bytes.

This report would have more information with
“Show verbose output during compilation”
option enabled in File → Preferences.

the selected serial port _
does not exist or your board is not connected

Which port do you have selected in the IDE and does it exist in the Operating System ?

Selected COM Port 6 and yes it does exist on my OS.... But Still getting same error continuously

Have you ever used this ESP8266 module before ?
When you see this in the compiler window:

Connecting......................................____

you have to push the buttons on the module to initiate the sketch transfer.

NO, I have not used before, I pressed the boot button and also tried uploading with programmer mode.. Still having same issues

Can you see the port in the device manager?
If not, try reinstall the driver

lesept:
Can you see the port in the device manager?
If not, try reinstall the driver

Yes, I have the PORT visible in Device Manager and also tried reinstalling it and still having same issues