ValueError: Node tool_calling_llm is not reachable

[baludwi]

On module-1/router.ipynb I get the following error. What can I do here?

[shiv248]

that's interesting, the code from the picture doesn't seem to differ from the base ipynb. Could you share if there is anything you added or changed? I just retried it on Google Colab and router.ipynb works for me.

[baludwi]

I didn't changed anything. here is the code from cell 4 in:
https://github.com/langchain-ai/langchain-academy/blob/main/module-1/router.ipynb

[rlancemartin]

I didn't changed anything. here is the code from cell 4 in: https://github.com/langchain-ai/langchain-academy/blob/main/module-1/router.ipynb

hmm. have you been able to reproduce this error? pls ensure that all packages are up to date. i have not been able to reproduce this.

[Ashique-1010]

it seemed to be an issue in langgraph version.
I reproduced the same error in version 0.2.22
Upgraded it to the version 0.2.67 it was fixed