error CS0029: Cannot implicitly convert type 'string' to 'UnityEngine.UI.Text'

I was using this code from the roll the ball tutorial and I am receiving this error and I am unsure how to fix this.

Code (CSharp):

1. using System.Collections;
2. using System.Collections.Generic;
3. using UnityEngine;
4. using UnityEngine.UI;
5.  
6. public class CollectingEssentialObjects : MonoBehaviour
7. {
8.     public Text essentialcountText;
9.     public Text essentialwinText;
10.     private int EssentialCount;
11.  
12.  
13.  
14.     void Start()
15.     {
16.         EssentialCount = 0;
17.         essentialwinText = "";
18.         SetEssentialCountText();
19.     }
20.     void SetEssentialCountText()
21.     {
22.         essentialcountText.text = "Essentials " + EssentialCount.ToString() + "/2";
23.         if (EssentialCount >= 2)
24.         {
25.             essentialcountText.text = "";
26.  
27.         }
28.     }
29.  
30.    
31.    
32.     void OnTriggerEnter(Collider other)
33.     {
34.         if (other.gameObject.CompareTag("Pick Up"))
35.         {
36.             other.gameObject.SetActive(false);
37.             EssentialCount = EssentialCount + 1;
38.             SetEssentialCountText();
39.         }
40.     }
41.    
42. }

Any help will be greatly appreciated thank you in advance.

 

Line 17 should be:

Code (CSharp):

1.  essentialwinText.text = "";