How to choose the appropriate version for each component?like langgraph and langchain-core?

[LauYoung7]

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Example Code

pip install -U langchain
pip install -U langchain-core
pip install -U langgraph

Description

I want to install the latest version langchain and the other packages, but these software have version conflicts. For example, i installed the latest langchain-core-0.2.5, but the langgraph-0.0.8 needed the langchain-core 0.1.52 , it would show this error: langchain 0.2.3 has requirement langchain-core<0.3.0,>=0.2.0, but you'll have langchain-core 0.1.52 which is incompatibl.
how can I solve these problems? Thanks a lot.

System Info

langchain==0.2.3
langchain-core==0.1.52
langchain-text-splitters==0.2.1
langgraph==0.0.8
langserve==0.2.2
langsmith==0.1.75
language-selector==0.1

platform:Ubuntu 20.04.6 LTS x86_64 GNU/Linux
python version:3.8.10

[dosubot[bot]]

Hey @LauYoung7! 👋 I'm here to help you with any bugs, questions, or contributions while you wait for a human maintainer. Let's squash those bugs together!

To resolve the version conflicts between langchain, langchain-core, and langgraph, you need to ensure that the versions of these packages are compatible with each other. Here are the steps you can follow:

1. Check the pyproject.toml files for version constraints:

   • langchain requires langchain-core version >=0.2.0 and <0.3.0 ^[1].
   • langgraph also requires langchain-core version ^0.2.0 ^[1].

2. Install compatible versions:

   • Based on the constraints, you should install langchain-core version 0.2.x to satisfy both langchain and langgraph.

Here is the correct installation sequence:

pip install langchain==0.2.3
pip install langchain-core==0.2.5
pip install langgraph==0.0.8

This ensures that all packages are compatible with each other. If you encounter any further issues, please check the specific version constraints in the pyproject.toml files of each package and adjust accordingly.

To continue talking to Dosu, mention @dosu.

[LauYoung7]

Langgraph 0.0.8 does not require langchain-core version 0.2x, it requires <0.2.0,>-0.1.8. So how could i do if i want to use langchain-core 0.2x and langgraph 0.0.8 ?

[eyurtsev]

@LauYoung7 Try to install the most recent version of each package. langchain and langchain-core should be on 0.2.x

Follow the error messages from pips dependency solver -- as it'll tell you which versions conflict with one another.

[LauYoung7]

Yes ,i installed the latest version langchain-core , but the latest langgraph 0.0.8 required the langchain-core 0.1.52 which is not the latest. So what can i do if i want to use the latest langchain-core and langgraph ?Thanks a lot

[LauYoung7]

And i installed langgraph 0.0.8 like pip install langgraph==0.0.8 , but it required langchain-core 0.1.52 version not the 0.2x version, check above my screenshot error messages

[NouhaBHY]

Hi, have you found a solution for this please ? I have the same problem.

[NouhaBHY]

Hi, have you found a solution for this please ? I have the same problem.

[KLL535]

Same problem.

[charlesdwright]

what a cluster.

[glimmera]

same problem