TypeError: Conversation.start_session() got an unexpected keyword argument 'user_id
08:02 27 May 2026

Working on a ElevenLabs Ai Agent. Following the steps from SDK and getting this these error:

(venv) PS C:\Users\Toby\Desktop\CHIEF> py .\main.py
Traceback (most recent call last):
  File "C:\Users\Toby\Desktop\CHIEF\main.py", line 126, in 
    main()
    ~~~~^^
  File "C:\Users\Toby\Desktop\CHIEF\main.py", line 106, in main
    run_voice_agent()
    ~~~~~~~~~~~~~~~^^
  File "C:\Users\Toby\Desktop\CHIEF\main.py", line 95, in run_voice_agent
    conversation.start_session(user_id="terminal-user")
    ~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^
   TypeError: Conversation.start_session() got an unexpected keyword argument 'user_id 
python artificial-intelligence elevenlabs