Make sure your Bundle/Application Identifier is correct for the API Key you’re using. You can find your project’s Application Identifier by clicking the [Set App/Bundle ID] button on the Kudan Trackerscript, or by going to Edit -> Project Settings -> Player and open Other Settings in the iOS tab.

The Application ID be either:

• The ID you entered when your free key was generated by XLsoft, in the format “com.companyName.productName”.
• If you are using the Development License Key, com.xlsoft.kudanar.
  Click here for the development license key.

To see if the entered API Key is valid for the corresponding Application ID, run the app in Play Mode. View message in the console mentioning whether or not the API Key is valid. Or view in console log when building for iOS/Android.

If the Application Identifier is incorrect, the Tracker will not run and camera view will be blank/black.

Add BuildHelper

Xcode projects, built with Unity 2019 and later, now includes the UnityFramework within the Standard iOS libraries. The Kudan framework supports fat binary, so builds cannot be compiled with Bitcode enabled. This UnityFramework also requires [Enable Bitcode] to be set to [No].

Starting with Unity 2019, you can specify Xcode project settings from Unity by adding the BuildHelper.cs file to your Unity project. Following the steps below.

In Project pane, create an Editor folder in the Assets folder by right-clicking and selecting [Create > Folder]. Right-click on the Editor folder created, select [Create > C # Script], and name the file BuildHelper.cs.

Open BuildHelper.cs with Visual Studio or other editor and replace it with the following code.

#if UNITY_2019_1_OR_NEWER
#if UNITY_IPHONE

using System.IO;
using UnityEditor;
using UnityEditor.Callbacks;
using UnityEditor.iOS.Xcode;

public class BuildHelper
{
    [PostProcessBuildAttribute (1)]
    public static void OnPostProcessBuild (BuildTarget target, string path)
    {
        if (target == BuildTarget.iOS)
        {
            var projectPath = PBXProject.GetPBXProjectPath (path);
            var project = new PBXProject ();
            project.ReadFromString (File.ReadAllText (projectPath));

            var targetGUID = project.GetUnityFrameworkTargetGuid ();
            project.SetBuildProperty (targetGUID, "ENABLE_BITCODE", "NO");
            var iphoneGUID = project.GetUnityMainTargetGuid ();
            project.SetBuildProperty (iphoneGUID, "ENABLE_BITCODE", "NO");

            File.WriteAllText (projectPath, project.WriteToString ());
        }
    }
}

#endif
#endif