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# Kesalahan dan pengecualian API manajemen Neptunus ML
<a name="machine-learning-api-exceptions"></a>

Semua pengecualian API manajemen Neptunus ML mengembalikan kode HTTP 400. Setelah menerima salah satu pengecualian ini, perintah yang menghasilkan pengecualian tidak boleh dicoba lagi.

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+ **`MissingParameterException`**— Pesan kesalahan:

  `Required credentials are missing. Please add IAM role to the cluster or pass as a parameter to this request.`
+ **`InvalidParameterException`**— Pesan kesalahan:
  + `Invalid ML instance type.`
  + `Invalid ID provided. ID can be 1-48 alphanumeric characters.`
  + `Invalid ID provided. Must contain only letters, digits, or hyphens.`
  + `Invalid ID provided. Please check whether a resource with the given ID exists.`
  + `Another resource with same ID already exists. Please use a new ID.`
  + `Failed to stop the job because it has already completed or failed.`
+ **`BadRequestException`**— Pesan kesalahan:
  + `Invalid S3 URL or incorrect S3 permissions. Please check your S3 configuration.`
  + `Provided ModelTraining job has not completed.`
  + `Provided SageMaker AI Training job has not completed.`
  + `Provided MLDataProcessing job is not completed.`
  + `Provided MLModelTraining job doesn't exist.`
  + `Provided ModelTransformJob doesn't exist.`
  + `Unable to find SageMaker AI resource. Please check your input.`