diff --git a/tianji/agents/metagpt_agents/sceneRefinement/role.py b/tianji/agents/metagpt_agents/sceneRefinement/role.py
index bf70ab3..1638662 100644
--- a/tianji/agents/metagpt_agents/sceneRefinement/role.py
+++ b/tianji/agents/metagpt_agents/sceneRefinement/role.py
@@ -56,6 +56,7 @@ async def _think(self) -> None:
             self.rc.todo = None
 
     async def _react(self) -> Message:
+        msg=None
         while True:
             await self._think()
             if self.rc.todo is None: