Go to the Google Cloud Console: console.cloud.google.com
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Select your project: In the top left corner (next to the Google Cloud logo), make sure you have selected the project you were using with Gemini/Antigravity.
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Open the Navigation Menu (the three horizontal lines in the top left) and go to Logging → Logs Explorer.
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In the “Query” box (the big text area in the middle), paste the following line:
severity>=ERROR AND (protoPayload.methodName=“SetIamPolicy” OR “Cloud AI Companion”) -
Click the “Run query” button on the right.
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What to look for: Look for entries with a red exclamation mark. Click on them to expand the details. You are looking for an error message that says something like:
“Exception calling IAM: Service account [ID-NUMBER] does not exist” or “Permission Denied”.If you can’t find “Logs Explorer” in the sidebar menu:
The sidebar in Google Cloud Console is dynamic and can be confusing. The fastest and most reliable way to find it is:
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Go to the Search Bar at the very top of the page (where it says “Search resources, services, and docs”).
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Type “Logs Explorer”.
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Click the first result under the “Products & Pages” section.
This will take you directly to the logs regardless of your sidebar settings or language.
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