Installation error

[leonardocelis112]

Bug Description

I followed the steps on the getting started.

I installed with both pip and pipx and in every installation i got the follwoing error.

ImportError: cannot import name 'ToolsRenderer' from 'langchain_core.tools' (/Users/leonardocelis/.pyenv/versions/3.11.3/lib/python3.11/site-packages/langchain_core/tools/init.py)

It seems is not able to find the ToolsRenderer class.

Maybe a langchain version issue.

Thanks in advance.

Reproduction

1. install a fresh environment with the desired python version
2. install running python -m pip install langflow -U
3. try to run with python -m langflow run
4. the error mentioned appears

Expected behavior

Expect the langflow server to run

Who can help?

No response

Operating System

Mac OS

Langflow Version

1.0.15

Python Version

3.11

Screenshot

Flow File

No response

[dosubot]

Hello @leonardocelis112! I'm here to assist you with any bugs, questions, or contributions. Let's work together to resolve the issue you're facing.

The error you're encountering is likely due to an incompatibility between Langflow v1.0.15 and the version of LangChain you have installed. Langflow v1.0.15 requires LangChain version 0.6.7.

To resolve this issue, follow these steps:

1. Verify the currently installed version of LangChain:

   pip show langchain

   This will display the currently installed version of LangChain.

2. Install the correct version of LangChain:
   If the installed version is not 0.6.7, install the correct version by running:

   pip install langchain==0.6.7

3. Verify the installation:
   After installation, verify that the correct version is installed by running:

   pip show langchain

   Ensure that the version displayed is 0.6.7.

By ensuring that you have the correct version of LangChain installed, you should be able to resolve the ImportError for ToolsRenderer and run Langflow successfully ^[1][2].

To continue talking to Dosu, mention @dosu.

[evbz22]

Still errors out even after trying

pip install langchain==0.6.7
ERROR: Could not find a version that satisfies the requirement langchain==0.6.7


ERROR: No matching distribution found for langchain==0.6.7

[leonardocelis112]

I'm having the same error that @evbz22 has.

[evbz22]

Found a resolution to this issue.
Langchain seems to have released langchain: release 0.2.14 #25416 to address this issue.
langchain-ai/langchain#25416

Please check langchain-ai/langchain#25413
It fixed my issue.