App crashes on google play login

Can you please add your full script where you use google play services :)

@hasitha here's the script I'm using. I made a brand new project without using admob. I have uploaded the apk to console and got the resources and the client id. But the game still crashes whenever I try to sign in. I'm using Unity 5.5.1f and play services plugin 0.9.42. Here's the script

 using System.Collections;
 using System.Collections.Generic;
 using UnityEngine;
 using GooglePlayGames;
 using UnityEngine.SocialPlatforms;
 
 public class googleplay : $$anonymous$$onoBehaviour {
 
     public static googleplay instance;
 
     void Awake(){
 
         if (instance == null) {
             instance = this;
         } 
 
     }
 
     void Start () {
 
         PlayGamesPlatform.Activate ();
     }
 
     void Update () {
 
     }
 
     public void Login(){
 
         Social.localUser.Authenticate ((bool success) => {
 
             if(success){
 
                 Debug.Log("YESSS");
 
 
             }
 
             else{
 
 
                 Debug.Log("NOOOOOOO");
             }
 
 
         });
 
     }
 
     public void ShowLeaderboard(){
 
         if (Social.localUser.authenticated) {
             PlayGamesPlatform.Instance.ShowLeaderboardUI (LeaderBoard.leaderboard_top_gunmen);
         } else {
 
             Login ();
         }
     }
 }

As soon as I call Login from a button the game just closes itself. It's driving me nuts. Help! And Thank You!

Try updating to Unity 5.6.4p3. its the final version of unity 5 with bug fixes.

and try this also :

 void Start ()
 {
         
 PlayGamesClientConfiguration config = new PlayGamesClientConfiguration.Builder ().Build ();
 PlayGamesPlatform.InitializeInstance (config);
 PlayGamesPlatform.DebugLogEnabled = true;    // check logs
 PlayGamesPlatform.Activate ();
 
 Social.localUser.Authenticate (success => {
             
     if (success) {
         Debug.Log ("SignIn successful");
     } else {
         Debug.Log ("SignIn failed");
     }
     
     });
 
 }

check your terminal logs