unable to install autogen 0.4

[vikceo]

when running

pip3 install autogen-agentchat==0.4.0.dev3

i get

ERROR: pip's dependency resolver does not currently take into account all the packages that are installed. This behaviour is the source of the following dependency conflicts.
langchainplus-sdk 0.0.20 requires pydantic<2,>=1, but you have pydantic 2.9.2 which is incompatible.
langchain 0.0.229 requires pydantic<2,>=1, but you have pydantic 2.9.2 which is incompatible.

i use a mac. so please advise how to fix it

[ekzhu]

As the error indicates, you have dependency conflict. I recommend using a virtual environment like virtualenv or Conda (https://docs.conda.io/projects/conda/en/stable/)

[CodingwithFawad]

The error message suggests that the installed version of pydantic (2.9.2) is incompatible with the requirements of langchain and langchainplus-sdk, both of which need pydantic version <2.