hi

app.py

@@ -208,11 +208,16 @@ class RagPipeline:
                 self.state.sentences = data["sentences"]
                 self.state.meta = data["meta"]
 
+            log.info("載入 BM25 索引...")
+
             log.info("載入 BM25 索引...")
             with open(BM25_PKL, "rb") as f:
-                self.state.bm25 = pickle.load(f)
+                # 載入整個字典，然後取 'bm25' 這個鍵
+                bm25_data = pickle.load(f)
+                self.state.bm25 = bm25_data["bm25"]
             if not isinstance(self.state.bm25, BM25Okapi):
                 raise ValueError("Loaded BM25 is not a BM25Okapi instance.")
+            
         except (FileNotFoundError, KeyError) as e:
             log.exception(f"資料或索引檔案載入失敗: {e}")
             raise RuntimeError(f"資料初始化失敗，請檢查檔案路徑與內容: {e}")