update

Assets/Editors/DistributeTool.cs

@@ -22,6 +22,7 @@
 // 4. Click the desired axis button (X, Y, or Z).
 // ===============================================================================
 
+#if UNITY_EDITOR
 using System.Linq;
 using UnityEditor;
 using UnityEngine;
@@ -128,4 +129,5 @@ namespace Editor
             Debug.Log($"<color=#FFCC00><b>[DistributeTool]</b></color> Distributed {sorted.Count} objects along the {(axis == 0 ? "X" : axis == 1 ? "Y" : "Z")} axis.");
         }
     }
-}
+}
+#endif