Upgraded original RothenburgAR to Unity version 2017.4.5f1 (and upgrading from standalone vuforia to the version integrated in unity)

Assets/Vuforia/Editor/Scripts/OpenSourceInitializer.cs

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+/*===============================================================================
+Copyright (c) 2017 PTC Inc. All Rights Reserved.
+
+Confidential and Proprietary - Protected under copyright and other laws.
+Vuforia is a trademark of PTC Inc., registered in the United States and other 
+countries.
+===============================================================================*/
+
+using System.Linq;
+using UnityEditor;
+using UnityEngine;
+using Vuforia;
+using Vuforia.EditorClasses;
+
+/// <summary>
+/// Creates connection between open source files and the Vuforia library.
+/// Do not modify.
+/// </summary>
+[InitializeOnLoad]
+public static class OpenSourceInitializer
+{
+    static OpenSourceInitializer()
+    {
+        GameObjectFactory.SetDefaultBehaviourTypeConfiguration(new DefaultBehaviourAttacher());
+        ReplacePlaceHolders();
+    }
+
+    static void ReplacePlaceHolders()
+    {
+        var trackablePlaceholders = Object.FindObjectsOfType<DefaultTrackableBehaviourPlaceholder>().ToList();
+        var initErrorsPlaceholders = Object.FindObjectsOfType<DefaultInitializationErrorHandlerPlaceHolder>().ToList();
+        
+        trackablePlaceholders.ForEach(ReplaceTrackablePlaceHolder);
+        initErrorsPlaceholders.ForEach(ReplaceInitErrorPlaceHolder);
+    }
+    
+    static void ReplaceTrackablePlaceHolder(DefaultTrackableBehaviourPlaceholder placeHolder)
+    {
+        var go = placeHolder.gameObject;
+        go.AddComponent<DefaultTrackableEventHandler>();
+
+        Object.DestroyImmediate(placeHolder);
+    }
+
+    static void ReplaceInitErrorPlaceHolder(DefaultInitializationErrorHandlerPlaceHolder placeHolder)
+    {
+        var go = placeHolder.gameObject;
+        go.AddComponent<DefaultInitializationErrorHandler>();
+
+        Object.DestroyImmediate(placeHolder);
+    }
+
+    class DefaultBehaviourAttacher : IDefaultBehaviourAttacher
+    {
+        public void AddDefaultTrackableBehaviour(GameObject go)
+        {
+            go.AddComponent<DefaultTrackableEventHandler>();
+        }
+
+        public void AddDefaultInitializationErrorHandler(GameObject go)
+        {
+            go.AddComponent<DefaultInitializationErrorHandler>();
+        }
+    }
+}

Assets/Vuforia/Editor/Scripts/OpenSourceInitializer.cs.meta

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+guid: 06a6d43752a6a6440822e730bd68070c
+timeCreated: 1493023741
+licenseType: Pro
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+  defaultReferences: []
+  executionOrder: 0
+  icon: {instanceID: 0}
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