Sometimes I got it, why? llama_index.core.workflow.errors.WorkflowRuntimeError: Error in step 'run_agent_step': list index out of range

[XinyueZ]

If I used the workflow multiagent stuff, sometimes worked very well, sometimes I got this error:

llama_index.core.workflow.errors.WorkflowRuntimeError: Error in step 'run_agent_step': list index out of range

why? what is the reason?

[dosubot[bot]]

The error "list index out of range" in the run_agent_step method is likely due to the ev.input list being empty or not properly initialized. This can happen if the input list is not correctly populated before the method is called. To resolve this, ensure that the input_messages are properly set up in the init_run step. This involves checking that either user_msg or chat_history is provided and correctly processed to populate input_messages ^[1].

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