issue when building player apk after adding google admob

Hi moderators, please approve this or let me know if I haven't met the guidelines?

There are fewer moderators active in the last couple of months, and the ones active are taking more care before approving questions. It is not uncommon to wait several hours, and if posting at a quite time of day, I've seen wait times of up to 5 or 6 hours. The best solution in the short term is to become active on the list. When you have 15 karma points (which is a couple of thumbs up on comments or one accepted answer), your questions will no longer go through moderation.

Thank you Robert, apologies for being hasty. I will keep that in $$anonymous$$d, and try to answer others questions to improve my karma.

seems like a good system, however for newbies it gets a little difficult.

once again, thank you for approving. I'm hoping someone can help me soon.

Okay so I resolved this by removing the older plugin directory, as I added an older version of admob unity plugin first when watching an older tutorial.

However the ads still don't show in my game? my script below uses the Admob component script which has been assigned in the inspector. no errors now but still won't show ads on the main menu scene where this script is attached to an empty gameobject.

any ideas?

 using UnityEngine;
 using UnityEngine.UI;
 using System.Collections;
 [RequireComponent(typeof(Ad$$anonymous$$obPlugin))]
 public class ShowAds : $$anonymous$$onoBehaviour 
 {
     private const string AD_UNIT_ID = "ca-app-pub-4633443251598509/3727397274";
     private Ad$$anonymous$$obPlugin admob;
 
     //public bool hidden = true;
     
 
     void Awake()
     {
         //DontDestroyOnLoad(this);
 
     }
 
     // Use this for initialization
     void Start () 
     {
         admob = GetComponent<Ad$$anonymous$$obPlugin>();
         admob.CreateBanner(adUnitId: AD_UNIT_ID,
                            adSize: Ad$$anonymous$$obPlugin.AdSize.S$$anonymous$$ART_BANNER,
                            isTopPosition: true);
         admob.RequestAd();
         ShowTheAds();
     }
     
     // Update is called once per frame
     void ShowTheAds() 
     {
         admob.ShowBanner();
         //admob.HideBanner();
     }
 }