Validation error for FastEmbedEmbeddings - extra fields not permitted

[saikaryekar]

Checked other resources

• I added a very descriptive title to this issue.
• I searched the LangChain documentation with the integrated search.
• I used the GitHub search to find a similar question and didn't find it.
• I am sure that this is a bug in LangChain rather than my code.
• The bug is not resolved by updating to the latest stable version of LangChain (or the specific integration package).

Example Code

%pip install --upgrade --quiet  fastembed
%pip install --upgrade --quiet langchain_community
%pip install --upgrade --quiet langchain 

from langchain_community.embeddings.fastembed import FastEmbedEmbeddings 
embeddings = FastEmbedEmbeddings()

Error Message and Stack Trace (if applicable)

`---------------------------------------------------------------------------
ValidationError Traceback (most recent call last)
in <cell line: 1>()
----> 1 embeddings = FastEmbedEmbeddings()

/usr/local/lib/python3.10/dist-packages/pydantic/v1/main.py in init(pydantic_self, **data)
339 values, fields_set, validation_error = validate_model(pydantic_self.class, data)
340 if validation_error:
--> 341 raise validation_error
342 try:
343 object_setattr(pydantic_self, 'dict', values)

ValidationError: 1 validation error for FastEmbedEmbeddings
_model
extra fields not permitted (type=value_error.extra)

Description

Unable to Instantie FastEmbed model. It raises validation error for extra fields while none are provided. Issue seems to be arising from pydantic.

Code was working well on langchain == 0.2.6 and langchain-core == 0.2.11. Tried installing older versions but still getting the error.

Followed the tutorial here: https://python.langchain.com/v0.2/docs/integrations/text_embedding/fastembed/

System Info

langchain==0.2.7
langchain-community==0.2.7
langchain-core==0.2.12
langchain-text-splitters==0.2.2

Google-colab
Python 3.10.12

[eyurtsev]

Could you check if downgrading to langchain-community==0.2.6 helps solve the issue?

[saikaryekar]

Nope, downgrading to langchain-community==0.2.6 does not solve the issue.

[JonathanLoscalzo]

Same here, on colab

!pip -q install langchain langchain_community pypdf fastembed chromadb

from langchain_community.embeddings.fastembed import FastEmbedEmbeddings
# supported models: https://qdrant.github.io/fastembed/examples/Supported_Models/
model_name = "thenlper/gte-large"
embedding_model = FastEmbedEmbeddings(model_name=model_name)

langchain_community.__version__, fastembed.__version__ # ('0.2.7', '0.3.3')

[JonathanLoscalzo]

For versions
langchain_community.__version__, fastembed.__version__ # ('0.2.6', '0.3.2')
it works, just a workaround @saikaryekar

[saikaryekar]

@JonathanLoscalzo downgrading both lanchain_community==0.2.6 and fastembed==0.3.2 worked, Thanks! I
They should fix issues for compatibility with newer version as well!

[Zizo-Vi]

same issue.

[eyurtsev]

Could someone help isolate whether the issue comes from a change in langchain_community or from fastembed?

[saikaryekar]

@eyurtsev the issue comes from the new release of langchain_community v0.2.7 which was released 2 days ago.

[Likhith904]

For versions langchain_community.__version__, fastembed.__version__ # ('0.2.6', '0.3.2') it works, just a workaround @saikaryekar

thanks for that it works
i dont know why there is no proper documentation when they release a new version

[Shyamnath-Sankar]

th

For versions langchain_community.__version__, fastembed.__version__ # ('0.2.6', '0.3.2') it works, just a workaround @saikaryekar

Thanks Man This finally works thanks very much

[Anush008]

Hey @eyurtsev. Could you please take a look at #24462 that resolves this?

[Fernando7181]

weird, im getting the same error here

[Anush008]

@Fernando7181, can you update the Langchain community package to the latest version?

[Fernando7181]

@Fernando7181, can you update the Langchain community package to the latest version?

sorry, its not the right topic im just new to it. Im getting this issue but not sure how to solve it