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That error is not about your Python code — it’s a permissions / API enablement issue in Google Cloud. Even if you are “Admin” in the project, Vertex AI needs the right APIs and service accounts enabled before a custom training job can run.

 Things to check
    1.  Enable the Vertex AI API
Go to Google Cloud Console → APIs & Services → Library and ensure:
    •   Vertex AI API (aiplatform.googleapis.com) is enabled.
    •   Cloud Storage API is also enabled (training jobs use GCS for staging).
    2.  Check the service account used for training
    •   By default, Vertex AI custom training runs under the Compute Engine default service account or a custom one you specify.
    •   That service account needs roles like:
    •   Vertex AI Administrator (roles/aiplatform.admin)
    •   Storage Admin (roles/storage.admin) or at least Storage Object Admin on your GCS bucket.
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