Error Trying To Share A Link On Facebook on iOS

Hi guys.

I created a code for sharing a link on Facebook. My goal is to check if the user shares the link of my App on his Facebook account. If he does it, I will grant him a reward.

The method I created to share is called "ShareFacebook". I'm using Unity Unity 2018.2.14 and Facebook SDK 7.14.0.

The error that xCode drops is:

2018-11-09 05:57:02.190649-0700 christmasgiftdronear[2346:632843] +[NSError fbRequiredArgumentErrorWithDomain:name:message:]: unrecognized selector sent to class 0x1d87acf80

2018-11-09 05:57:02.314448-0700 christmasgiftdronear[2346:632843] Uncaught exception: NSInvalidArgumentException: +[NSError fbRequiredArgumentErrorWithDomain:name:message:]: unrecognized selector sent to class 0x1d87acf80

The original code of that component is the next:

Code (CSharp):

1. using System.Collections;
2. using System.Collections.Generic;
3. using UnityEngine;
4. using UnityEngine.UI;
5. using Facebook.Unity;
6.  
7. public class FacebookMngr : SingletonWulum<FacebookMngr> {
8.  
9.     public string userFacebookAccessTokenId = "userFacebookAccessTokenId";
10.  
11. //    public Text userIdText;
12.  
13.     [SerializeField]
14.     private Text shareFacebookRewardText;
15.     private int shareFacebookReward = 250;
16.  
17.     public override void Awake()
18.     {
19.         base.Awake();
20.         Debug.Log("Awake de FB");
21.  
22.         if (!FB.IsInitialized)
23.         {
24.             FB.Init(() => {
25.                 FB.ActivateApp();
26.             });
27.         }
28.         else
29.         {
30.             FB.ActivateApp();
31.         }
32.     }
33.  
34.     public  void Start()
35.     {
36.         LogIn();
37.     }
38.  
39.     public void LogIn()
40.     {
41.         FB.LogInWithReadPermissions (null, callback: OnLogIn);
42.     }
43.  
44.     private void OnLogIn(ILoginResult result)
45.     {
46.         //Debug.Log("Facebook logged in:" + FB.IsLoggedIn);
47.         if (FB.IsLoggedIn)
48.         {
49.             AccessToken token = AccessToken.CurrentAccessToken;
50.             PlayerPrefs.SetString ("userFacebookAccessTokenId", token.TokenString);
51.             //Debug.Log("Token asignado:" + token.TokenString);
52.         }
53.         else
54.         {
55.             Debug.Log ("Cancel Login");
56.         }
57.     }
58.  
59.     public void CleanFacebookToken(){
60.         PlayerPrefs.DeleteKey("userFacebookAccessTokenId");
61.     }
62.     public void setFacebookPlayerPrefs(string tokenUserId)
63.     {
64.         PlayerPrefs.SetString ("userFacebookAccessTokenId", tokenUserId);
65.         Debug.Log("WULUM - Next Player Has been Set: " + tokenUserId);
66.     }
67.  
68.     public bool isFacebookPlayerPrefsSetted() {
69.         bool isSetted = false;
70.         if (PlayerPrefs.HasKey ("userFacebookAccessTokenId"))
71.             isSetted = true;
72.         return isSetted;
73.     }
74.  
75.     public string GetFacebookAccessTokenId() {
76.         string tokenId = "";
77.         if (PlayerPrefs.HasKey ("userFacebookAccessTokenId")) {
78.             tokenId = PlayerPrefs.GetString ("userFacebookAccessTokenId");
79.         }
80.         return tokenId;
81.     }
82.  
83.     public void ShareFacebook() {
84.  
85.         Debug.Log("WULUM - Calling ShareFacebook");
86.  
87.         string appUrl = "https://itunes.apple.com/us/app/saving-christmas-ar/id1317060184?mt=8";
88.  
89.         FB.ShareLink(
90.             contentURL: new System.Uri(appUrl),
91.             contentTitle: "Saving Christmas - AR",
92.             contentDescription: "Help santa",
93.             photoURL: new System.Uri("http://www.wulum.com"),
94.             callback: OnShare);
95.  
96.         Debug.Log("WULUM - Facebook SharingLink");
97.        
98.     }
99.  
100.     private void OnShare(IShareResult result)
101.     {    
102.         if (result.Cancelled || !string.IsNullOrEmpty(result.Error))
103.         {
104.             Debug.Log ("WULUM - Sharelink on Facebook Error: " + result.Error);
105.             UIManager.Instance.ConfirmationGotExtraCoins (0);
106.         }
107.         else if (!string.IsNullOrEmpty(result.PostId))
108.         {
109.             Debug.Log (result.PostId);
110.             UIManager.Instance.ConfirmationGotExtraCoins (0);
111.         }
112.         else
113.         {
114.             Debug.Log ("WULUM - Share On Facebook Succeded");
115.             UIManager.Instance.ConfirmationGotExtraCoins (shareFacebookReward);
116.         }
117.     }
118. }

But you only should focus on the method ShareFacebook. The error is on the line:

FB.ShareLin(contentURL: new System.Uri(appUrl)...

Thanks for any suggestions you may have.

 

We had the same problem. Downgraded to the 7.13.0 SDK and now it works fine.

 

Solved? Is the related FB app taken live?