LangChain数据库初始化出错_typeerror: loop of ufunc does not support argument

TypeError: loop of ufunc does not support argument 0 of type NoneType which has no callable conjugate method

报错如下：

File "E:\LangChain\Langchain-Chatchat-master\init_database.py", line 107, in <module>
 
folder2db(kb_names=args.kb_name, mode="recreate_vs", embed_model=args.embed_model)
 
File "E:\LangChain\Langchain-Chatchat-master\server\knowledge_base\migrate.py", line 121, in folder2db
 
kb.create_kb()
 
File "E:\LangChain\Langchain-Chatchat-master\server\knowledge_base\kb_service\base.py", line 81, in create_kb
 
self.do_create_kb()
 
File "E:\LangChain\Langchain-Chatchat-master\server\knowledge_base\kb_service\faiss_kb_service.py", line 51, in do_create_kb
 
self.load_vector_store()
 
File "E:\LangChain\Langchain-Chatchat-master\server\knowledge_base\kb_service\faiss_kb_service.py", line 28, in load_vector_store
 
return kb_faiss_pool.load_vector_store(kb_name=self.kb_name,
 
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
File "E:\LangChain\Langchain-Chatchat-master\server\knowledge_base\kb_cache\faiss_cache.py", line 102, in load_vector_store
 
vector_store = self.new_vector_store(embed_model=embed_model, embed_device=embed_device)
 
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
File "E:\LangChain\Langchain-Chatchat-master\server\knowledge_base\kb_cache\faiss_cache.py", line 60, in new_vector_store
 
vector_store = FAISS.from_documents([doc], embeddings, normalize_L2=True,distance_strategy="METRIC_INNER_PRODUCT")
 
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
File "E:\LangChain\Langchain-Chatchat-master\venv\Lib\site-packages\langchain_core\vectorstores.py", line 508, in from_documents
 
return cls.from_texts(texts, embedding, metadatas=metadatas, **kwargs)
 
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
File "E:\LangChain\Langchain-Chatchat-master\venv\Lib\site-packages\langchain_community\vectorstores\faiss.py", line 959, in from_texts
 
embeddings = embedding.embed_documents(texts)
 
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
File "E:\LangChain\Langchain-Chatchat-master\server\knowledge_base\kb_service\base.py", line 425, in embed_documents
 
return normalize(embeddings).tolist()
 
^^^^^^^^^^^^^^^^^^^^^
 
File "E:\LangChain\Langchain-Chatchat-master\server\knowledge_base\kb_service\base.py", line 37, in normalize
 
norm = np.linalg.norm(embeddings, axis=1)
 
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
File "<__array_function__ internals>", line 200, in norm
 
File "E:\LangChain\Langchain-Chatchat-master\venv\Lib\site-packages\numpy\linalg\linalg.py", line 2541, in norm
 
s = (x.conj() * x).real
 
^^^^^^^^
 
TypeError: loop of ufunc does not support argument 0 of type NoneType which has no callable conjugate method

原因为连接不上https://huggingface.co

解决方法，使用梯子

或者直接访问镜像源下载

BAAI/bge-large-zh-v1.5 at main

下载完后，复制到路径中C:\Users\Administrator\.cache\torch\sentence_transformers\BAAI_bge-large-zh-v1.5

再次运行就正常了

python init_database.py --recreate-vs