diff --git a/Assets/Scripts/Controller/DeviceController.cs b/Assets/Scripts/Controller/DeviceController.cs
index 1d9444a7..5b7b7195 100644
--- a/Assets/Scripts/Controller/DeviceController.cs
+++ b/Assets/Scripts/Controller/DeviceController.cs
@@ -41,8 +41,8 @@ public class DeviceController : MonoSingleton<DeviceController>
             if (string.IsNullOrEmpty(device.Path) == false)
             {
                 obj = Utility.FindObj(device.Path);
-                item = obj.GetOrAddComponent<DeviceItem>();
-                item.Init(device);
+                item = obj?.GetOrAddComponent<DeviceItem>();
+                item?.Init(device);
             }
             deviceDict.Add(device.Name, new DeviceData() { device = device, item = item });
         }