运行startup.py时找不到'langchain_core'

[Lelouch-J]

运行startup.py时找不到'langchain_core'

复现问题的步骤 / Steps to Reproduce

1. 执行python startup.py -a
2. 问题出现 / Problem occurs
   Traceback (most recent call last):
   File "/Users/*****/Langchain-Chatchat/startup.py", line 9, in
   from langchain_core._api import deprecated
   ModuleNotFoundError: No module named 'langchain_core'

pip install langchain_core后，都已经存在，输出：
Requirement already satisfied: langchain_core in /Users//.virtualenvs/py3dev/lib/python3.10/site-packages (0.1.23)
Requirement already satisfied: PyYAML>=5.3 in /Users//.virtualenvs/py3dev/lib/python3.10/site-packages (from langchain_core) (6.0.1)
Requirement already satisfied: anyio<5,>=3 in /Users/****/.virtualenvs/py3dev/lib/python3.10/site-packages (from langchain_core) (4.3.0)
等等

[dosubot]

The error indicates that Python cannot find the 'langchain_core' module, which is essential for running startup.py. To resolve this, follow these steps:

1. Ensure 'langchain_core' is installed. If it's not, install it via pip with:

   pip install langchain-core

   If 'langchain_core' is a specific version required by Langchain-Chatchat, such as 0.0.354, install it using:

   pip install langchain-core==0.0.354

   This version compatibility is noted in the requirements.txt of the Langchain-Chatchat repository.

2. If 'langchain_core' is a local package not on PyPI, add its directory to your PYTHONPATH, or adjust your script to import it correctly.

3. Check your Python interpreter to ensure it's the one where 'langchain_core' is installed. Use which python on Unix or where python on Windows to verify.

4. If using a virtual environment, activate it before running your script.

5. For IDE users, verify that the project's Python interpreter settings point to the correct interpreter.

6. Review any sys.path modifications in your script to ensure they don't interfere with module resolution.

If issues persist after these steps, please share more details about your setup and the steps you've tried.

Details

Sources

• [BUG] 简洁阐述问题 / 使用命令 python startup.py -a启动时出错
• 启动失败
• ModuleNotFoundError: No module named 'langchain_core'
• [BUG] Langchain-chatchat 一键启动项目 python startup.py -a 报错
• No module named 'zhipuai'
• [BUG] 简洁阐述问题 / Concise description of the issue
• startup.py
• requirements.txt

About Dosu
This response is meant to be useful and save you time. It is not meant to be a precise solution, but rather a starting point for your own research.

Help me be more useful! Please leave a 👍 if this is helpful and 👎 if it is irrelevant.

To continue the conversation, mention @dosu.