runtime error

Exit code: 1. Reason: Traceback (most recent call last): File "/home/user/app/app.py", line 6, in <module> from agent import build_langgraph, build_tool File "/home/user/app/agent.py", line 43, in <module> vision_llm = ChatGoogleGenerativeAI(model="gemini-2.5-flash") File "/usr/local/lib/python3.10/site-packages/langchain_google_genai/chat_models.py", line 1189, in __init__ super().__init__(**kwargs) File "/usr/local/lib/python3.10/site-packages/langchain_core/load/serializable.py", line 130, in __init__ super().__init__(*args, **kwargs) File "/usr/local/lib/python3.10/site-packages/pydantic/main.py", line 253, in __init__ validated_self = self.__pydantic_validator__.validate_python(data, self_instance=self) File "/usr/local/lib/python3.10/site-packages/langchain_google_genai/chat_models.py", line 1248, in validate_environment self.client = genaix.build_generative_service( File "/usr/local/lib/python3.10/site-packages/langchain_google_genai/_genai_extension.py", line 276, in build_generative_service return v1betaGenerativeServiceClient(**config) File "/usr/local/lib/python3.10/site-packages/google/ai/generativelanguage_v1beta/services/generative_service/client.py", line 697, in __init__ self._transport = transport_init( File "/usr/local/lib/python3.10/site-packages/google/ai/generativelanguage_v1beta/services/generative_service/transports/grpc.py", line 234, in __init__ super().__init__( File "/usr/local/lib/python3.10/site-packages/google/ai/generativelanguage_v1beta/services/generative_service/transports/base.py", line 100, in __init__ credentials, _ = google.auth.default( File "/usr/local/lib/python3.10/site-packages/google/auth/_default.py", line 685, in default raise exceptions.DefaultCredentialsError(_CLOUD_SDK_MISSING_CREDENTIALS) google.auth.exceptions.DefaultCredentialsError: Your default credentials were not found. To set up Application Default Credentials, see https://cloud.google.com/docs/authentication/external/set-up-adc for more information.

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