With the release of Langchain 0.2.0, many of the other libraries that provide connectors and other libraries (e.g. langchain_experimental) require support for 0.2.0. Our team uses the pg connector provided here and the libraries are currently incompatible with the rest of our libraries.
I have released version 0.5.0 that supports LangChain v0.2.0. This should be available within the hour. Please reopen this issue if you continue to experience this issue.
With the release of Langchain 0.2.0, many of the other libraries that provide connectors and other libraries (e.g.
langchain_experimental
) require support for 0.2.0. Our team uses the pg connector provided here and the libraries are currently incompatible with the rest of our libraries.