In order to use the LittleFS library that comes with Arduino on the ESP32, use the following function
#include <LittleFS.h>
bool filesystemOK = false;
void InitFilesystem() {
// Initialize LittleFS
if (!LittleFS.begin(false /* false: Do not format if mount failed */)) {
Serial.println("Failed to mount LittleFS");
if (!LittleFS.begin(true /* true: format */)) {
Serial.println("Failed to format LittleFS");
} else {
Serial.println("LittleFS formatted successfully");
filesystemOK = true;
}
} else { // Initial mount success
filesystemOK = true;
}
}https://techoverflow.net/2022/11/15/how-to-initialize-littlefs-in-arduino-on-the-esp32-platformio/