When i try to upload file in my Ardunio mega i get error

[Akshar062]

`In file included from C:\Users\hp-akshar\AppData\Local\Temp.arduinoIDE-unsaved202444-3532-uxs9m8.5dk7q\Upload\Upload.ino:1:0:
d:\Ardunio\libraries\ITEADLIB_Arduino_Nextion-master/NexUpload.h:20:10: fatal error: SD.h: No such file or directory
#include <SD.h>
^~~~~~
compilation terminated.
exit status 1

Compilation error: exit status 1`

here is my code

#include <Nextion.h>    
NexDSButton bt1 = NexDSButton(0,3,"bt1"); // Scan Btn
NexDSButton bt0 = NexDSButton(0,2,"bt0"); // Calibration Btn


NexTouch *nex_listen_list[]{
  &bt1,
  &bt0,
  NULL
};

void bt1PushCallback(void *ptr){

  Serial.print("S");
  Serial.print("Scan button pressed");

}

void bt0PushCallback(void *ptr){

  Serial.print("C");
  Serial.print("Calibration button pressed");

}


void setup(){
  Serial.begin(9600);
  delay(500);
  Serial.print("baud=115200");
  Serial.write(0xff);
  Serial.write(0xff);
  Serial.write(0xff);

  Serial.end();
  Serial.begin(115200);

  bt1.attachPush(bt1PushCallback);
  bt0.attachPush(bt0PushCallback);

}

void loop(){
  nexLoop(nex_listen_list);
}