please help NullReferenceException object

Hi all. please help past fixed script

Error
NullReferenceException
UnityEngine.Transform.get_position () (at C:/BuildAgent/work/14194e8ce88cdf47/Runtime/ExportGenerated/Editor/UnityEngineTransform.cs:19)
PriesoAI.Update () (at Assets/skriptai/PriesoAI.cs:26)

sript

using UnityEngine;
using System.Collections;

public class PriesoAI : MonoBehaviour {
public Transform taikinys;
public int judesiogreitis;
public int rotationgreitis;

private Transform myTransform;

void budrus(){
myTransform = transform;

}

// Use this for initialization
void Start () {
GameObject go = GameObject.FindGameObjectWithTag(“Player”);

taikinys = go.transform;

}

// Update is called once per frame
void Update () {
Debug.DrawLine(taikinys.position, myTransform.position, Color.yellow);

//ziureti i taikini
myTransform.rotation = Quaternion.Slerp(myTransform.rotation, Quaternion.LookRotation(taikinys.position - myTransform.position), rotationgreitis * Time.deltaTime);

}

}

found your post with same problem, then found apparent solution.
referencing the position or rotation in an undefined transform gives me the same error right now. Don’t know why it comes through as such a weird error.

for some reason “go” or "taikinys " aren’t found.
I suspect a misspelt tag or something.
or budrus isn’t called perhaps?
I’d use :
GameObject go = (GameObject)FindGameObjectWithTag(“Player”);
taikinys = go.transform;