SPIFFS_write error(-10010): unknown

[alfandirifaul]

Im try to use make a webserver using esp32 with "LittleFS.h" library, then when i was upload the file the error is occured with the statement following:

Building in release mode
Building FS image from 'data' directory to .pio/build/esp32doit-devkit-v1/spiffs.bin
/index.html
skipping .DS_Store
skipping .DS_Store
/bootstrap/css/bootstrap.min.css.gz
SPIFFS_write error(-10010): unknown
error adding file!
Error for adding content from css!
/bootstrap/js/bootstrap.min.js
/bootstrap/js/bootstrap.bundle.min.js.gz
SPIFFS_write error(-10010): unknown
error adding file!
Error for adding content from js!
/jquery/jquery.min.js.gz

and i was try to make the file be .gz format for my web file. can everyone give me some solution to solve thats problem?