Reasoning Engine resource failed to start

Google Cloud Build with AI Agents
1

Hi, I have checked out the Google team created agent development sample code:

git clone GitHub - google/adk-samples: A collection of sample agents built with Agent Development Kit (ADK)
cd adk-samples/python/agents/academic-research

When I try to deploy this agent I am getting this error consistently. Kindly provide me the suggestion hot to fix this issue:
google.api_core.exceptions.InvalidArgument: 400 Reasoning Engine resource [projects/(PII Removed by Staff)/locations/us-central1/reasoningEngines/3509108952233148416] failed to start and cannot serve traffic.

Thanks,

UmaMaheswar

2

Hey,

Hope you’re keeping well.

That error usually means the Reasoning Engine instance couldn’t initialize successfully due to configuration or dependency issues. In Vertex AI Agent Builder, check that the reasoning engine’s location matches the location of your agent and any referenced resources. Make sure the project has Vertex AI API enabled and the service account used for deployment has roles/aiplatform.user and any roles needed for connected data sources. You can review detailed startup logs in Cloud Logging under reasoningengine.googleapis.com for that resource ID to see the exact failure cause.

Thanks and regards,
Taz

3

Thanks a million, Taz! Your pointers were spot on.

It turned out the Cloud Resource Manager API wasn’t enabled. I flipped the switch, and it started working immediately. This is my very first deployment, so I really appreciate you helping me get it across the finish line!

Thanks again,
Uma Maheswar