diff --git a/Runtime/LubanCroppingHelper.cs b/Runtime/LubanCroppingHelper.cs
index 38910bb..f536560 100644
--- a/Runtime/LubanCroppingHelper.cs
+++ b/Runtime/LubanCroppingHelper.cs
@@ -11,13 +11,12 @@ namespace LuBan.Runtime
     {
         void Start()
         {
-            _ = typeof(Luban.Runtime.BeanBase);
-            _ = typeof(Luban.Runtime.EDeserializeError);
-            _ = typeof(Luban.Runtime.SerializationException);
-            _ = typeof(Luban.Runtime.SegmentSaveState);
-            _ = typeof(Luban.Runtime.ByteBuf);
-            _ = typeof(Luban.Runtime.ITypeId);
-            _ = typeof(Luban.Runtime.StringUtil);
+            _ = typeof(Luban.BeanBase);
+            _ = typeof(Luban.EDeserializeError);
+            _ = typeof(Luban.SerializationException);
+            _ = typeof(Luban.SegmentSaveState);
+            _ = typeof(Luban.ByteBuf);
+            _ = typeof(Luban.StringUtil);
         }
     }
 }
\ No newline at end of file