runtime error

generate_prompt return self.generate(prompt_messages, stop=stop, callbacks=callbacks, **kwargs) File "/usr/local/lib/python3.10/site-packages/langchain_core/language_models/chat_models.py", line 421, in generate raise e File "/usr/local/lib/python3.10/site-packages/langchain_core/language_models/chat_models.py", line 411, in generate self._generate_with_cache( File "/usr/local/lib/python3.10/site-packages/langchain_core/language_models/chat_models.py", line 632, in _generate_with_cache result = self._generate( File "/usr/local/lib/python3.10/site-packages/langchain_google_genai/chat_models.py", line 666, in _generate response: genai.types.GenerateContentResponse = _chat_with_retry( File "/usr/local/lib/python3.10/site-packages/langchain_google_genai/chat_models.py", line 171, in _chat_with_retry return _chat_with_retry(**kwargs) File "/usr/local/lib/python3.10/site-packages/tenacity/__init__.py", line 289, in wrapped_f return self(f, *args, **kw) File "/usr/local/lib/python3.10/site-packages/tenacity/__init__.py", line 379, in __call__ do = self.iter(retry_state=retry_state) File "/usr/local/lib/python3.10/site-packages/tenacity/__init__.py", line 314, in iter return fut.result() File "/usr/local/lib/python3.10/concurrent/futures/_base.py", line 451, in result return self.__get_result() File "/usr/local/lib/python3.10/concurrent/futures/_base.py", line 403, in __get_result raise self._exception File "/usr/local/lib/python3.10/site-packages/tenacity/__init__.py", line 382, in __call__ result = fn(*args, **kwargs) File "/usr/local/lib/python3.10/site-packages/langchain_google_genai/chat_models.py", line 165, in _chat_with_retry raise ChatGoogleGenerativeAIError( langchain_google_genai.chat_models.ChatGoogleGenerativeAIError: Invalid argument provided to Gemini: 400 API Key not found. Please pass a valid API key. [reason: "API_KEY_INVALID" domain: "googleapis.com" metadata { key: "service" value: "generativelanguage.googleapis.com" } ]

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