Hi Fan Shen,
Thanks for reaching out to Microsoft Q&A.
The error you encountered, "InternalServerError: An unexpected error occurred," typically suggests an issue with the server or the infrastructure supporting the Azure AI Document Intelligence Studio, rather than something directly related to your model or dataset.
- Retry the Operation: Sometimes, temporary infrastructure issues can cause this error. Trying again might resolve the problem if the issue was momentary.
- Check Model Version: Ensure that the API version you are using is supported and that the pre-built model or custom model you're training aligns with the latest version of the Azure AI service.
- Review Logs: If there are any logs or detailed error messages available within the Azure portal or Document Intelligence Studio, reviewing them might provide additional insight into the root cause.
- Quota and Limits: Check if you have reached any service quotas, such as for the number of training calls, model limits, or data limits, which could trigger unexpected errors.
- Service Status: Verify that Azure services in your region are fully operational by visiting the Azure Status Page. Downtime or issues with Azure services can sometimes cause internal server errors.
- Data Format Issues: Ensure that the documents you're using for training comply with the expected format and size limits. Sometimes, formatting issues can lead to internal server errors during processing.
- Submit a Support Ticket: If none of the above steps help, consider submitting a support ticket through the Azure portal for further investigation.
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