Open Chander88 opened 2 weeks ago
Hey @Chander88, I'm here to help you with any bugs, questions, or contributions you have for the project. Let's tackle this together!
The "list index out of range" error typically occurs when trying to access an index in a list that doesn't exist. In Langflow, this could happen in several scenarios, especially during graph execution where lists are used to manage inputs, outputs, and vertices.
Here are some potential areas to investigate:
Input and Output Lists: Ensure that the inputs and outputs provided to the graph are correctly defined and match the expected structure. If the graph expects a certain number of inputs or outputs, make sure they are all provided.
Graph Structure: Check the graph's structure to ensure that all vertices and edges are correctly defined. Missing or incorrectly defined vertices could lead to attempts to access non-existent list elements.
Code Handling Lists: Review the parts of the code that handle list operations during graph execution. Functions like find_runnable_predecessors_for_successors
, get_top_level_vertices
, and build_adjacency_maps
are involved in list operations and could be potential sources of the error if they encounter unexpected data [1].
Error Handling: Look into the error handling mechanisms in place during graph execution. The code includes several checks and exception handling that might provide more context on where the error is occurring [2].
If the error persists, consider adding logging or debugging statements to identify the exact point of failure in the code. This can help pinpoint which list operation is causing the issue.
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Hello, @Chander88 . How are you?
To help you effectively, I first need to reproduce the issue on my end. Could you provide your flow and any additional information on the conditions I should set to encounter the same problem you’re experiencing?
Hello @italojohnny,
Thankyou for helping. I am running two server one is Node and another is the Langflow. Basically it is the AI application and when I hitting the request to langflow server with some audio message. Langflow throws the error Error running graph: list index out of range. I use the flow Id that I got form the Python API when I dashboard of server.
Please let me know if any further details required.
I sincerely apologize for the delay in responding, but I was unable to reproduce your issue.
In the meantime, we have released version 1.1.1. Could you check if the issue still occurs with this new version?
If it does, could you share a copy of your flow and/or the complete error log? This would greatly help me identify the problem.
Bug Description
When I submit the request to on server. I got the response from API Error running graph: list index out of range.
Reproduction
Attached the screenshot.
Expected behavior
Please review screenshot.
Who can help?
@italojohnny
Operating System
ubuntu 22.04.1
Langflow Version
langflow 1.0.19. and langflow-base 0.0.99
Python Version
3.10
Screenshot
Flow File
No response