Littlefs filesystem is falied to open the file in esp32s3

General discussion
1 
lv_fs_file_t f;
  lv_fs_res_t res;
  res = lv_fs_open(&f, (const char *)"/image.jpg", LV_FS_MODE_WR);
  if (res == LV_FS_RES_OK) {
    Serial.println("opened");
    uint32_t bw; // Number of bytes written
    res = lv_fs_write(&f, imageData, sizeof(imageData), &bw);
    Serial.println(res);
    if (res == LV_FS_RES_OK) {
      Serial.print("Data written to file: ");
      // Serial.println(data);
      Serial.print("Number of bytes written: ");
      Serial.println(bw);
    } else {
      Serial.println("Failed to write to file");
    }
  }
  lv_obj_t *img = lv_img_create(lv_scr_act());
  lv_img_set_src(img, &f); // Set the image source

  // Adjust the position of the image
  lv_obj_set_align(img, LV_ALIGN_CENTER);

  lv_fs_close(&f);

this the code i am using

in lv_conf.h

#define LV_USE_FS_LITTLEFS 1
#if LV_USE_FS_LITTLEFS
    #define LV_FS_LITTLEFS_LETTER 'D'     /*Set an upper cased letter on which the drive will accessible (e.g. 'A')*/
#endif

this the error i am getting

lv_fs_open: Can't open file (/image.jpg): unknown driver letter lv_fs.c:75␍␊
[14:23:28:977] [Info]⇥	(0.010, +0)⇥	 lv_image_create: begin lv_image.c:123␍␊
[14:23:28:986] [Warn]⇥	(0.010, +0)⇥	 lv_image_set_src: failed to get image info: 0x3fcebcf4 lv_image.c:175␍␊

when drive letter passed my code is getting crashed

res = lv_fs_open(&f, (const char *)"D:/image.jpg", LV_FS_MODE_WR);