Fix to resolve issue where an error is generated if the MixedRealityT…

…oolkit is selected when a configuration is applied. (#735)

* Fix to resolve issue where an error is generated if the MixedRealityToolkit is selected when a configuration is applied.

* Added comment around change

Co-authored-by: Stephen Hodgson <hodgson.designs@gmail.com>

Editor/PackageInstaller.cs

@@ -133,6 +133,13 @@ private static void AddConfigurations(List<string> profiles)
         {
             AssetDatabase.Refresh(ImportAssetOptions.ForceUpdate);
 
+            //Clear the selection to ensure the inspector does not cause errors, Empty try catch to avoid Unity crashing when Selection is null
+            try
+            {
+                Selection.activeObject = null;
+            }
+            catch { }
+
             foreach (var profile in profiles.Where(x => x.EndsWith(".asset")))
             {
                 var platformConfigurationProfile = AssetDatabase.LoadAssetAtPath<MixedRealityPlatformServiceConfigurationProfile>(profile);
@@ -193,6 +200,13 @@ private static string CopyAsset(this string rootPath, string sourceAssetPath, st
         /// <param name="rootProfile">The root profile to install the </param>
         public static void InstallConfiguration(MixedRealityPlatformServiceConfigurationProfile platformConfigurationProfile, MixedRealityToolkitRootProfile rootProfile)
         {
+            //Clear the selection to ensure the inspector does not cause errors, Empty try catch to avoid Unity crashing when Selection is null
+            try
+            {
+                Selection.activeObject = null;
+            }
+            catch { }
+
             foreach (var configuration in platformConfigurationProfile.Configurations)
             {
                 var configurationType = configuration.InstancedType.Type;