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DOC: stream error in jupyter notebook langgraph_crag_local.ipynb #60

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opened 2026-02-20 17:24:20 -05:00 by yindo · 3 comments
yindo commented 2026-02-20 17:24:20 -05:00
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Originally created by @AndresRubio on GitHub (Apr 5, 2024).

Issue with current documentation:

langgraph_crag_local.ipynb

in jupyter cell when is called app.stream(inputs):

triggers error for node "retriever" line 1125, in _prepare_next_tasks
val = proc.mapper(val)

TypeError: 'module' object is not callable

val variable in that moment is {}

python = "^3.11"
langchain-community = "^0.0.31"
tiktoken = "^0.6.0"
langchainhub = "^0.1.15"
chromadb = "^0.4.24"
langchain = "^0.1.12"
langgraph = "^0.0.31"
tavily-python = "^0.3.3"
langchain-mistralai = "^0.1.0"

Idea or request for content:

No response

Originally created by @AndresRubio on GitHub (Apr 5, 2024). ### Issue with current documentation: [langgraph_crag_local.ipynb](https://github.com/langchain-ai/langgraph/blob/main/examples/rag/langgraph_crag_local.ipynb) in jupyter cell when is called `app.stream(inputs)`: triggers error for node "retriever" line 1125, in _prepare_next_tasks val = proc.mapper(val) TypeError: 'module' object is not callable val variable in that moment is {} python = "^3.11" langchain-community = "^0.0.31" tiktoken = "^0.6.0" langchainhub = "^0.1.15" chromadb = "^0.4.24" langchain = "^0.1.12" langgraph = "^0.0.31" tavily-python = "^0.3.3" langchain-mistralai = "^0.1.0" ### Idea or request for content: _No response_
yindo closed this issue 2026-02-20 17:24:20 -05:00
yindo commented 2026-02-20 17:24:21 -05:00
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@hinthornw commented on GitHub (May 4, 2024):

Hm - do you run into this issue in versions after 0.0.40?

@hinthornw commented on GitHub (May 4, 2024): Hm - do you run into this issue in versions after 0.0.40?
yindo commented 2026-02-20 17:24:23 -05:00
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@AndresRubio commented on GitHub (May 9, 2024):

thanks for the comment

python = "^3.11"
langchain-community = "^0.0.38"
tiktoken = "^0.6.0"
langchainhub = "^0.1.15"
chromadb = "^0.4.24"
langchain = "^0.1.19"
langgraph = "^0.0.48"
tavily-python = "^0.3.3"
langchain-mistralai = "^0.1.6"
gpt4all = "^2.4.0"
docx2txt = "^0.8"

Same result

@AndresRubio commented on GitHub (May 9, 2024): thanks for the comment python = "^3.11" langchain-community = "^0.0.38" tiktoken = "^0.6.0" langchainhub = "^0.1.15" chromadb = "^0.4.24" langchain = "^0.1.19" langgraph = "^0.0.48" tavily-python = "^0.3.3" langchain-mistralai = "^0.1.6" gpt4all = "^2.4.0" docx2txt = "^0.8" Same result
yindo commented 2026-02-20 17:24:25 -05:00
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@nfcampos commented on GitHub (May 23, 2025):

This is no longer an issue

@nfcampos commented on GitHub (May 23, 2025): This is no longer an issue
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Reference: langchain-ai/langgraph#60
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