安装使用LangChain时的报错解决

刚刚装了LangChain但是引入各种包都报错，原因貌似为 Python3.7 不支持 LangChain，需要开启一个新的Python3.10环境，再重新安装即可正常运行。

创建新的python环境

conda create -n new_env python==3.10

重新安装

pip install langchain

这是当时的报错信息，写出来希望小伙伴来避避坑

 File "E:\ProgramData\miniconda3\envs\common\lib\site-packages\langchain\__init__.py", line 8, in <module>from langchain.agents import MRKLChain, ReActChain, SelfAskWithSearchChainFile "E:\ProgramData\miniconda3\envs\common\lib\site-packages\langchain\agents\__init__.py", line 2, in <module>from langchain.agents.agent import AgentFile "E:\ProgramData\miniconda3\envs\common\lib\site-packages\langchain\agents\agent.py", line 10, in <module>from langchain.chains.base import ChainFile "E:\ProgramData\miniconda3\envs\common\lib\site-packages\langchain\chains\__init__.py", line 2, in <module>from langchain.chains.conversation.base import ConversationChainFile "E:\ProgramData\miniconda3\envs\common\lib\site-packages\langchain\chains\conversation\base.py", line 7, in <module>from langchain.chains.conversation.memory import ConversationBufferMemoryFile "E:\ProgramData\miniconda3\envs\common\lib\site-packages\langchain\chains\conversation\memory.py", line 7, in <module>from langchain.chains.conversation.prompt import SUMMARY_PROMPTFile "E:\ProgramData\miniconda3\envs\common\lib\site-packages\langchain\chains\conversation\prompt.py", line 2, in <module>from langchain.prompts.prompt import PromptTemplateFile "E:\ProgramData\miniconda3\envs\common\lib\site-packages\langchain\prompts\__init__.py", line 2, in <module>from langchain.prompts.base import BasePromptTemplateFile "E:\ProgramData\miniconda3\envs\common\lib\site-packages\langchain\prompts\base.py", line 35, in <module>class BasePromptTemplate(BaseModel, ABC):File "E:\ProgramData\miniconda3\envs\common\lib\site-packages\langchain\prompts\base.py", line 41, in BasePromptTemplate@root_validator()File "E:\ProgramData\miniconda3\envs\common\lib\site-packages\pydantic\deprecated\class_validators.py", line 231, in root_validatorcode='root-validator-pre-skip',
pydantic.errors.PydanticUserError: If you use `@root_validator` with pre=False (the default) you MUST specify `skip_on_failure=True`. Note that `@root_validator` is deprecated and should be replaced with `@model_validator`.For further information visit https://errors.pydantic.dev/2.0.3/u/root-validator-pre-skipProcess finished with exit code 1