Arduino Uno upload error stk

Arduino: 1.8.13 (Windows 7), Board: "Arduino Uno"

Sketch uses 1488 bytes (4%) of program storage space. Maximum is 32256 bytes.

Global variables use 188 bytes (9%) of dynamic memory, leaving 1860 bytes for local variables. Maximum is 2048 bytes.

avrdude: stk500_getsync() attempt 1 of 10: not in sync: resp=0x00

avrdude: stk500_getsync() attempt 2 of 10: not in sync: resp=0x00

avrdude: stk500_getsync() attempt 3 of 10: not in sync: resp=0x00

avrdude: stk500_getsync() attempt 4 of 10: not in sync: resp=0x00

avrdude: stk500_getsync() attempt 5 of 10: not in sync: resp=0x00

avrdude: stk500_getsync() attempt 6 of 10: not in sync: resp=0x00

avrdude: stk500_getsync() attempt 7 of 10: not in sync: resp=0x00

avrdude: stk500_getsync() attempt 8 of 10: not in sync: resp=0x00

avrdude: stk500_getsync() attempt 9 of 10: not in sync: resp=0x00

avrdude: stk500_getsync() attempt 10 of 10: not in sync: resp=0x00

An error occurred while uploading the sketch

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

@sritej
Correct port selected?

@sritej

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could you post the whole error code

avrdude: stk500_getsync() attempt 10 of 10: not in sync: resp=0x00

Please provide more information, are you not able to see the ports under IDE-> Tools> Ports?

  • Describe the behavior of L Led on pressing Reset Button. (It must Blink twice very fast).
  • Go to: Arduino IDE > File > Preferences > Show verbose output: Select both options: "Compilation" and "Upload". Then try to upload the Blink example (Arduino IDE > Files > Examples > Basics > Blink) and please send to us the copy of the whole text shown in the console.
  • Connect the board to a different computer and check if it has the same behavior.

Ensure nothing connected to pins 0 or 1. These are used for the upload process and things connected to them will interfere.

Also if you do see the triple blink when you press reset, if you open serial monitor, do you also see the triple blink? If not, autoreset is not working.

If no triple blink at all, bootloader not present or chip damaged.