Error while instaling heltec ESP32 dev framework

When I install ESP32 dev framework using provided git instructions for fedora, I receive this error:

$ git submodule update --init --recursive
Submodule 'esp32/libraries/ESP32_AzureIoT_Arduino' (https://github.com/VSChina/ESP32_AzureIoT_Arduino.git) registered for path 'libraries/ESP32_AzureIoT_Arduino'
Submodule 'esp8266/libraries/ESP8266SdFat' (https://github.com/earlephilhower/ESP8266SdFat.git) registered for path '../esp8266/libraries/ESP8266SdFat'
Submodule 'esp8266/libraries/LittleFS/lib/littlefs' (https://github.com/esp8266/Arduino/libraries/LittleFS.git) registered for path '../esp8266/libraries/LittleFS/lib/littlefs'
Submodule 'esp8266/libraries/SoftwareSerial' (https://github.com/PaulStoffregen/SoftwareSerial.git) registered for path '../esp8266/libraries/SoftwareSerial'
Cloning into '/Users/gbr4/Documents/Arduino/hardware/heltec/esp32/libraries/ESP32_AzureIoT_Arduino'...
Cloning into '/Users/gbr4/Documents/Arduino/hardware/heltec/esp8266/libraries/ESP8266SdFat'...
Cloning into '/Users/gbr4/Documents/Arduino/hardware/heltec/esp8266/libraries/LittleFS/lib/littlefs'...
remote: Not Found
fatal: repository 'https://github.com/esp8266/Arduino/libraries/LittleFS.git/' not found
fatal: clone of 'https://github.com/esp8266/Arduino/libraries/LittleFS.git' into submodule path '/Users/gbr4/Documents/Arduino/hardware/heltec/esp8266/libraries/LittleFS/lib/littlefs' failed
Failed to clone 'esp8266/libraries/LittleFS/lib/littlefs'. Retry scheduled
Cloning into '/Users/gbr4/Documents/Arduino/hardware/heltec/esp8266/libraries/SoftwareSerial'...
Cloning into '/Users/gbr4/Documents/Arduino/hardware/heltec/esp8266/libraries/LittleFS/lib/littlefs'...
remote: Not Found
fatal: repository 'https://github.com/esp8266/Arduino/libraries/LittleFS.git/' not found
fatal: clone of 'https://github.com/esp8266/Arduino/libraries/LittleFS.git' into submodule path '/Users/gbr4/Documents/Arduino/hardware/heltec/esp8266/libraries/LittleFS/lib/littlefs' failed
Failed to clone 'esp8266/libraries/LittleFS/lib/littlefs' a second time, aborting

How can I fix it and use the latest version of the library?

Are you installing the ESP32 Arduino library?
See this article:
https://heltec-automation-docs.readthedocs.io/en/latest/esp32/quick_start.html