一. 结论先行缺少 llama-index-readers-file 和 pypdf 依赖二. 示例代码from llama_index.core import SimpleDirectoryReader path ../file # # 创建文档读取器 reader SimpleDirectoryReader( input_dir path, recursiveTrue, required_exts [.pdf] ) # 加载文档 documents reader.load_data() # 返回的结果response 是 List[Document] 列表 for document in documents: print(* 60) print(document.text) # 输出的文档内容 print(* 60) print(document.metadata) # 输出文档元数据三. 错误原因解析1.有 llama-index-readers 依赖缺少 pypdf 依赖时Failed to load file D:\Patrick\Study\PyCharmProjects\AgentStudy\LangChain\进阶 RAG\LlamaIndex\图文类型数据处理\L1SimpleDirectoryReader VectorStoreIndex\..\file\公司季度财 报.pdf with error: RetryError[Future at 0x2032dfd4190 statefinished raised ImportError]. 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一. 结论先行缺少 llama-index-readers-file 和 pypdf 依赖二. 示例代码from llama_index.core import SimpleDirectoryReader path ../file # # 创建文档读取器 reader SimpleDirectoryReader( input_dir path, recursiveTrue, required_exts [.pdf] ) # 加载文档 documents reader.load_data() # 返回的结果response 是 List[Document] 列表 for document in documents: print(* 60) print(document.text) # 输出的文档内容 print(* 60) print(document.metadata) # 输出文档元数据三. 错误原因解析1.有 llama-index-readers 依赖缺少 pypdf 依赖时Failed to load file D:\Patrick\Study\PyCharmProjects\AgentStudy\LangChain\进阶 RAG\LlamaIndex\图文类型数据处理\L1SimpleDirectoryReader VectorStoreIndex\..\file\公司季度财 报.pdf with error: RetryError[Future at 0x2032dfd4190 statefinished raised ImportError]. 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