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google.auth.exceptions.DefaultCredentialsError #2
Description
Hi,
I am getting this error while attempting to launch the SpikeAgent: streamlit run src/unified_app.py
The web browser gives the following traceback:
File "/mnt/c/Users/m329786/Python_packages/SpikeAgent/src/unified_app.py", line 8, in <module>
from graph_gemini import invoke_our_graph as invoke_gemini_graph
File "/mnt/c/Users/m329786/Python_packages/SpikeAgent/src/graph_gemini.py", line 333, in <module>
gemini_2_0_flash = ChatGoogleGenerativeAI(model="gemini-2.0-flash-exp", temperature=0).bind_tools(tools)
File "/home/m329786/anaconda3/envs/spike_agent/lib/python3.10/site-packages/langchain_google_genai/chat_models.py", line 1108, in __init__
super().__init__(**kwargs)
File "/home/m329786/anaconda3/envs/spike_agent/lib/python3.10/site-packages/langchain_core/load/serializable.py", line 130, in __init__
super().__init__(*args, **kwargs)
File "/home/m329786/anaconda3/envs/spike_agent/lib/python3.10/site-packages/pydantic/main.py", line 253, in __init__
validated_self = self.__pydantic_validator__.validate_python(data, self_instance=self)
File "/home/m329786/anaconda3/envs/spike_agent/lib/python3.10/site-packages/langchain_google_genai/chat_models.py", line 1169, in validate_environment
self.client = genaix.build_generative_service(
File "/home/m329786/anaconda3/envs/spike_agent/lib/python3.10/site-packages/langchain_google_genai/_genai_extension.py", line 276, in build_generative_service
return v1betaGenerativeServiceClient(**config)
File "/home/m329786/anaconda3/envs/spike_agent/lib/python3.10/site-packages/google/ai/generativelanguage_v1beta/services/generative_service/client.py", line 697, in __init__
self._transport = transport_init(
File "/home/m329786/anaconda3/envs/spike_agent/lib/python3.10/site-packages/google/ai/generativelanguage_v1beta/services/generative_service/transports/grpc.py", line 234, in __init__
super().__init__(
File "/home/m329786/anaconda3/envs/spike_agent/lib/python3.10/site-packages/google/ai/generativelanguage_v1beta/services/generative_service/transports/base.py", line 100, in __init__
credentials, _ = google.auth.default(
File "/home/m329786/anaconda3/envs/spike_agent/lib/python3.10/site-packages/google/auth/_default.py", line 685, in default
raise exceptions.DefaultCredentialsError(_CLOUD_SDK_MISSING_CREDENTIALS)
Activity
arnaumarin commentedon Jun 7, 2025
Hi @dervinism,
Thanks for reporting this and providing the detailed traceback! Seems like your
DefaultCredentialsErrormeans the Gemini API key is missing.Option 1: Add your Gemini Key
This is the fastest fix if you want to use Gemini.
Option 2: Switch to a Different LLM (like OpenAI)
Use this if you don't have a Gemini key.
src/unified_app.py. Change the import fromgraph_geminito the provider you want to use (e.g.,graph_openai).Let us know if this resolves your issue or if you have any other questions. We can try go step by step to make sure you can run it!
dervinism commentedon Jun 15, 2025
Thanks for a quick reply. I have set the API keys in the environment file
SpikeAgent.envbut my guess is that it is not being detected.