Py4JJavaError

In notebook: https://github.com/awslabs/amazon-sagemaker-examples/blob/master/sagemaker-spark/pyspark_mnist/pyspark_mnist_kmeans.ipynb

Defining the endpoint:
`modelFromJob = SageMakerModel.fromTrainingJob(...)`

Returns:
`Py4JJavaError: An error occurred while calling z:com.amazonaws.services.sagemaker.sparksdk.SageMakerModel.fromTrainingJob. : com.amazonaws.services.sagemaker.model.AmazonSageMakerException: Requested resource not found. `

To reproduce error:

1. Launch SM Notebook instance
2. Clone https://github.com/awslabs/amazon-sagemaker-examples.git
3. Open https://github.com/awslabs/amazon-sagemaker-examples/blob/master/sagemaker-spark/pyspark_mnist/pyspark_mnist_kmeans.ipynb
4. Click "Cell" -> "Run All"