spine相关脚本报错

ActionTowerDefense/Assets/Editor/SkeletonDataReader.cs

@@ -115,6 +115,10 @@ public class SkeletonDataMonitor
                 if (!_prefabCache.ContainsKey(path) ||
                     _prefabCache[path].skeletonDataAsset != skeleton.skeletonDataAsset)
                 {
+                    if (string.IsNullOrEmpty(path))
+                    {
+                        return;
+                    }
                     ProcessSkeletonChange(path, skeleton.skeletonDataAsset);
                 }
             }