Thanks for spending effort fixing #17
Today I updated my IDE, board packs and this tool to try out the solution, but did not manage to get it working. The normal OTA update is working, but LittleFS keeps getting the same error. As written in the Glitch section, I have tried selecting a different board or opening it as a second sketch. Unfortunately for me the result remains the same.

Any additional tips or solutions?

Hereby the Arduino IDE versions:
Version: 2.3.4
Date: 2024-12-03T10:03:03.490Z
CLI Version: 1.1.1

Hereby the tool output:
LittleFS Filesystem Uploader v1.5.0 -- https://github.com/earlephilhower/arduino-littlefs-upload

Sketch Path: [project-path]\MyProject
Data Path: [project-path]\MyProject\data
Device: ESP8266 series
Network Info: [ip-address]:8266

Building LittleFS filesystem
Command Line: [tool-parth]\Arduino15\packages\esp32\tools\mklittlefs\3.0.0-gnu12-dc7f933\mklittlefs.exe -c [project-path]\MyProject\data -p 256 -b 8192 -s 2072576 [temp-path]\tmp-11120-4AWVcDauxaqA-.littlefs.bin
/file1.css
/file2.svg
/file3.gif
/file4.gif
/file5.htm
/file6.gif
/file7.ico
/file8.htm
/file9.gif
/file10.htm
/file11.htm

Uploading LittleFS filesystem
Command Line: [tool-path]\Arduino15\packages\esp8266\tools\python3\3.7.2-post1\python3.exe [tool-path]\Arduino15\packages\esp8266\hardware\esp8266\3.1.2\tools\upload.py --chip esp8266 --port 192.168.1.118 --baud 115200 write_flash 2097152 [temp-path]\tmp-11120-4AWVcDauxaqA-.littlefs.bin
esptool.py v3.0
Serial port 192.168.1.118

A fatal esptool.py error occurred: could not open port '192.168.1.118': FileNotFoundError(2, 'The system cannot find the file specified.', None, 2)
Completed upload.