Not able to Flash BME688 development board

[Buz-lactarius]

I downloaded BME688_Development_Kit _Software _v2.0.9 and tried to flash my 688 board (attached to Adafruit Huzzah32 board) and get the following error: "'esptool.exe' is not recognized as an internal or external command, operable program or batch file."   I tried naming a different port, re-downloading but get the same error message.    Board uploads and runs the Arduino libraries but those are different that the flashed programs as there is nothing saved as a "BMErawdata" file format, BSEC2 libraries only put a *.csv file on the sd card.Any suggestions?  Using Windows 10 latest update and latest Arduino software.

Thank You

[BSTRobin]

Hi Buz-lactarius,

You need to install Python on your Windows 10 before you run "esptool.exe". Firstly
Firstly, ensure that the binary "bme68x_demo_sample.ino.bin" is updated correctly.

[Buz-lactarius]

Thank you Robin.  I downloaded and installed Python 3.11 Windows 64bit.  New Download "bme688_development_kit_software_v2-0-9"  When I try to Flash to designated com port 14 I get this error message.  No install yet :

Enter COM port number (e.g. COM21)14
esptool.py v3.3
Serial port 14
Traceback (most recent call last):
File "esptool.py", line 5387, in <module>
File "esptool.py", line 5380, in _main
File "esptool.py", line 4687, in main
elif args.no_stub:
File "esptool.py", line 114, in get_default_connected_device
_esp = chip_class(each_port, initial_baud, trace)
File "esptool.py", line 320, in __init__
self._port = serial.serial_for_url(port)
File "serial\__init__.py", line 90, in serial_for_url
File "serial\serialwin32.py", line 64, in open
serial.serialutil.SerialException: could not open port '14': FileNotFoundError(2, 'The system cannot find the file specified.', None, 2)
[10460] Failed to execute script 'esptool' due to unhandled exception!
Enter any key to exit.....

[BSTRobin · Accepted solution]

Hi Buz-lactarius,

You should enter "COM14" instead of "14".

[Buz-lactarius]

Thank you for catching that. Works perfectly now!