model_formattingTier 1 · 70% confidence

ai-agents-model-formatting-error-failed-to-get-supported-params-argument-of-t-450259de

agent: ai_agents

When does this happen?

IF Error 'Failed to get supported params: argument of type NoneType is not iterable' when using crewAI's LLM class with a model string lacking a provider prefix.

How others solved it

THEN When instantiating the LLM class, ensure the model string follows the 'provider/llm-name' format (e.g., 'groq/llama3-8b-8192') instead of using just the model name. This aligns with LiteLLM's expected provider/name syntax.

llm=LLM(model="groq/llama3-8b-8192", api_key=GROQ_API_KEY)

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