runtime error

Exit code: 1. Reason: Traceback (most recent call last): File "/home/user/app/app.py", line 54, in <module> app_gui() File "/home/user/app/app.py", line 11, in app_gui bot = Assistant(llm={ File "/usr/local/lib/python3.10/site-packages/qwen_agent/agents/assistant.py", line 79, in __init__ super().__init__(function_list=function_list, File "/usr/local/lib/python3.10/site-packages/qwen_agent/agents/fncall_agent.py", line 36, in __init__ super().__init__(function_list=function_list, File "/usr/local/lib/python3.10/site-packages/qwen_agent/agent.py", line 41, in __init__ self.llm = get_chat_model(llm) File "/usr/local/lib/python3.10/site-packages/qwen_agent/llm/__init__.py", line 65, in get_chat_model if 'qwen-vl' in model: TypeError: argument of type 'NoneType' is not iterable

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