Gamecenter does not work on AppleTV

@o___O @paatz04 - Did anyone manage to find an answer to this issue? We're in a bit of an emergency situation over this right now, and any tips or advice would be a lifesaver! Thanks!

The issue appears to be a problem with the Game Center View Controller on tvOS not being able to cope with the view not having a 'Dashboard Image' You can fix this by adding one in the xcode project manually inside the UnityImages.xcassets folder:



After adding this you'll probably get a build error like this:

 On-Demand Resources is enabled (ENABLE_ON_DEMAND_RESOURCES = YES),
 but the PRODUCT_BUNDLE_IDENTIFIER build setting is empty

This means you need to set your PRODUCT_BUNDLE_IDENTIFIER in the project build settings - Unity doesn't do this for you.



We were able to automate both of these steps with the following script:

 using System;
 using System.IO;
 using UnityEditor;
 using UnityEditor.Callbacks;
 using UnityEditor.iOS.Xcode;
 
 using Newtonsoft.Json;
 
 namespace BuildAutomation {
 #if UNITY_TVOS
     public class BuildScript {
         [Serializable]
         class XCodeImageSet {
             [Serializable]
             public class Info {
                 public int version = 0;
                 public string author = null;
             }
 
             [Serializable]
             public class Image {
                 public string idiom = null;
                 public string filename = null;
                 public string scale = null;
             }
 
             public Info info = null;
             public Image[] images = null;
         }
 
         [PostProcessBuild]
         public static void OnPostprocessBuild(BuildTarget buildTarget, string path) {
             string projPath = PBXProject.GetPBXProjectPath(path);
 
             var proj = new PBXProject();
             proj.ReadFromString(File.ReadAllText(projPath));
 
             var target = proj.TargetGuidByName(PBXProject.GetUnityTargetName());
 
             proj.SetBuildProperty(target, "PRODUCT_BUNDLE_IDENTIFIER", UnityEngine.Application.identifier);
             
             File.WriteAllText(projPath, proj.WriteToString());
 
             const string dbImageName = "tvOs_DashboardArtwork";
             const string dbImageFolder = "DashboardImage";
             string dbImagePath = $"{path}/UnityImages.xcassets/{dbImageFolder}.gcdashboardimage/{dbImageFolder}.imageset/";
             Directory.CreateDirectory(dbImagePath);
 
             string[] imageAssetGuids = AssetDatabase.FindAssets(dbImageName);
 
             XCodeImageSet imageSet = new XCodeImageSet {
                 info = new XCodeImageSet.Info {
                     version = 1,
                     author = "com.yourcompany",
                 },
                 images = new XCodeImageSet.Image[imageAssetGuids.Length]
             };
 
             for (int i = 0; i < imageAssetGuids.Length; ++i) {
                 string fileGuid = imageAssetGuids[i];
                 string filePath = AssetDatabase.GUIDToAssetPath(fileGuid);
                 string fileName = Path.GetFileName(filePath);
 
                 imageSet.images[i] = new XCodeImageSet.Image{
                     idiom = "tv",
                     filename = fileName,
                     scale = fileName.Contains("@2x") ? "2x" : "1x",
                 };
 
                 File.Copy(filePath, dbImagePath + fileName);
             }
 
             File.WriteAllText(
                 dbImagePath + "Contents.json",
                 JsonConvert.SerializeObject(imageSet)
             );
         }
     }
 #endif
 }

If using this script, just make sure you have the images named tvOs_DashboardArtwork.png and tvOs_DashboardArtwork_@2x.png somewhere in your Assets folder. Guidelines for the image dimensions can be found here

Hope this helps others having this issue!