-Some missed bits that prevent compile for Android.

Assets/MixedRealityToolkit.LightingTools/CameraCapture/Util/CameraExtensions.cs

@@ -1,8 +1,8 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
+// Copyright (c) Microsoft Corporation. All rights reserved.
+// Licensed under the MIT License. See LICENSE in the project root for license information.
+#if WINDOWS_UWP
+using System;
 using System.Runtime.InteropServices;
-using System.Text;
 using System.Threading.Tasks;
 using UnityEngine.Windows.WebCam;
 using static UnityEngine.Windows.WebCam.PhotoCapture;
@@ -168,3 +168,4 @@ namespace Microsoft.MixedReality.Toolkit.LightingTools
         }
     }
 }
+#endif

Assets/MixedRealityToolkit.LightingTools/LightCapture.cs

@@ -174,7 +174,7 @@ namespace Microsoft.MixedReality.Toolkit.LightingTools
             #if WINDOWS_UWP && !UNITY_EDITOR
             cameraCapture = new CameraCaptureUWP();
             #elif (UNITY_ANDROID || UNITY_IOS) && !UNITY_EDITOR
-            captureCamera = new CameraCaptureARFoundation();
+            cameraCapture = new CameraCaptureARFoundation();
             #else
             // On a desktop computer, or certain laptops, we may not have access to any cameras.
             if (WebCamTexture.devices.Length <= 0)