Google AI Studio GitHub import fails with 404 during GitHub App installation

I am trying to import an existing GitHub repository into Google AI Studio.

When I select:
Google AI Studio → Import code from GitHub → Connect GitHub

the GitHub App installation flow fails.

The flow redirects to:

Then GitHub displays:
“404 This is not the webpage you are looking for”

The Google AI Studio GitHub App does not appear as an installed GitHub App after the failed attempt.

Troubleshooting completed:

  • Confirmed the correct GitHub account is being used
  • Confirmed the repository exists and is accessible
  • Tested Chrome and Safari
  • Confirmed other GitHub App installations work normally

It appears the Google AI Studio GitHub App installation callback is failing.