I am building an attendance app and I face this error 'void android.app.Dialog.setOwnerActivity(android.app.Activity)' How can I overcome this?

Question

My Dialog class shows error and I don't know what happens with my code where it generate error I check multiple times and still not get a solution.

Please Help to get rid of this....

public class MyDialog extends DialogFragment {

public static final String CLASS_ADD_DIALOG = "addClass";
public static final String STUDENT_ADD_DIALOG = "addStudent";


OnClickListener listener;
public interface OnClickListener {
    void onClick(String text1, String text2);
}



    public void setListener(OnClickListener listener) {
        this.listener = listener;
    }
    @NonNull
    @Override
     public Dialog onCreateDialog(@Nullable Bundle savedInstanceState) {
    Dialog dialog =null;

    if(getTag().equals(CLASS_ADD_DIALOG))dialog = getAddClassDialog();
   

//Here android studio shows an error

if(getTag().equals(STUDENT_ADD_DIALOG))dialog = getAddStudentDialog()

    return dialog;

}

private Dialog getAddStudentDialog() {

    AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
    View view = LayoutInflater.from(getActivity()).inflate(R.layout.dialog, null);
    builder.setView(view);

    TextView title = view.findViewById(R.id.titleDialog);
    title.setText("ADD NEW STUDENT");



    EditText roll_edt = view.findViewById(R.id.roll);
    EditText name_edt = view.findViewById(R.id.name);


    // And also here it shows error
    roll_edt.setHint("Roll");
    name_edt.setHint("Name");
    Button cancel = view.findViewById(R.id.cancel_btn);
    Button add = view.findViewById(R.id.add_btn);

    cancel.setOnClickListener(v -> dismiss());



    add.setOnClickListener(v -> {
        String roll = roll_edt.getText().toString();
        String name = name_edt.getText().toString();
        roll_edt.setText(String.valueOf(Integer.parseInt(roll)+1));
        listener.onClick(roll, name);
    });

    return builder.create();

}



private Dialog getAddClassDialog() {
    AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
    View view = LayoutInflater.from(getActivity()).inflate(R.layout.dialog, null);
    builder.setView(view);

    TextView title = view.findViewById(R.id.titleDialog);
    title.setText("ADD NEW CLASS");


    EditText class_edt = view.findViewById(R.id.edt01);
    EditText sub_edt = view.findViewById(R.id.edt02);

    class_edt.setHint("Class");
    sub_edt.setHint("Sub");
    Button cancel = view.findViewById(R.id.cancel_btn);
    Button add = view.findViewById(R.id.add_btn);

    cancel.setOnClickListener(v -> dismiss());



    add.setOnClickListener(v -> {
        String className = class_edt.getText().toString();
        String subName = sub_edt.getText().toString();
        listener.onClick(className, subName);
        dismiss();
    });

    return builder.create();

Rather than this it shows multiple error without blue lines shows error of Fragment.

enter image description here