From 254ee1f8a792d21a405dfd640c5070ded3c9fd41 Mon Sep 17 00:00:00 2001
From: John <johndygit@live.com.ph>
Date: Mon, 29 May 2017 18:22:24 +0800
Subject: [PATCH] [unity] Handle TextAssets not found.

---
 .../Assets/spine-unity/Editor/SpineEditorUtilities.cs        | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/spine-unity/Assets/spine-unity/Editor/SpineEditorUtilities.cs b/spine-unity/Assets/spine-unity/Editor/SpineEditorUtilities.cs
index 4716e4d05..1ff346f54 100644
--- a/spine-unity/Assets/spine-unity/Editor/SpineEditorUtilities.cs
+++ b/spine-unity/Assets/spine-unity/Editor/SpineEditorUtilities.cs
@@ -567,7 +567,8 @@ namespace Spine.Unity.Editor {
 					imagePaths.Add(str);
 					break;
 				case ".json":
-					if (IsSpineData((TextAsset)AssetDatabase.LoadAssetAtPath(str, typeof(TextAsset))))
+					var jsonAsset = (TextAsset)AssetDatabase.LoadAssetAtPath(str, typeof(TextAsset));
+					if (jsonAsset != null && IsSpineData(jsonAsset))
 						skeletonPaths.Add(str);
 					break;
 				case ".bytes":
@@ -1186,6 +1187,8 @@ namespace Spine.Unity.Editor {
 		}
 
 		public static bool IsSpineData (TextAsset asset) {
+			if (asset == null) return false;
+
 			bool isSpineData = false;
 			string rawVersion = null;