runtime error

Exit code: 1. Reason: Traceback (most recent call last): File "/home/user/app/app.py", line 9, in <module> from agent.agent import OracleBot File "/home/user/app/agent/__init__.py", line 1, in <module> from .agent import OracleBot File "/home/user/app/agent/agent.py", line 6, in <module> from agent.nodes import call_model, tool_node File "/home/user/app/agent/nodes.py", line 14, in <module> from agent.prompts import get_system_prompt File "/home/user/app/agent/prompts.py", line 4, in <module> from tools import list_tools File "/home/user/app/tools/__init__.py", line 2, in <module> from .search import web_search File "/home/user/app/tools/search.py", line 3, in <module> web_search = TavilySearch(max_results=3, topic="general") File "/usr/local/lib/python3.13/site-packages/langchain_tavily/tavily_search.py", line 340, in __init__ super().__init__(**kwargs) ~~~~~~~~~~~~~~~~^^^^^^^^^^ File "/usr/local/lib/python3.13/site-packages/langchain_core/tools/base.py", line 521, in __init__ super().__init__(**kwargs) ~~~~~~~~~~~~~~~~^^^^^^^^^^ File "/usr/local/lib/python3.13/site-packages/langchain_core/load/serializable.py", line 130, in __init__ super().__init__(*args, **kwargs) ~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^ File "/usr/local/lib/python3.13/site-packages/pydantic/main.py", line 253, in __init__ validated_self = self.__pydantic_validator__.validate_python(data, self_instance=self) File "/usr/local/lib/python3.13/site-packages/pydantic/main.py", line 253, in __init__ validated_self = self.__pydantic_validator__.validate_python(data, self_instance=self) pydantic_core._pydantic_core.ValidationError: 1 validation error for TavilySearchAPIWrapper Value error, Did not find tavily_api_key, please add an environment variable `TAVILY_API_KEY` which contains it, or pass `tavily_api_key` as a named parameter. [type=value_error, input_value={}, input_type=dict] For further information visit https://errors.pydantic.dev/2.11/v/value_error

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