Troubleshoot "cannot import name 'SerializationError'"

When using Azure Machine Learning, you may receive one of the following errors:

• cannot import name 'SerializationError'
• cannot import name 'SerializationError' from 'azure.core.exceptions'

This error may occur when using an Azure Machine Learning environment. For example, when submitting a training job or using AutoML.

Cause

This problem is caused by a bug in the Azure Machine Learning SDK version 1.42.0.

Resolution

Update the affected environment to use SDK version 1.42.0.post1 or greater. For a local development environment or compute instance, use the following command:

pip install azureml-sdk[automl,explain,notebooks]>=1.42.0

For more information on updating an Azure Machine Learning environment (for training or deployment), see the following articles:

• Manage environments in studio
• Create & use software environments (SDK v1)
• Create & manage environments (CLI v2)

To verify the version of your installed SDK, use the following command:

pip show azureml-core

Next steps

For more information on updating an Azure Machine Learning environment (for training or deployment), see the following articles:

• Manage environments in studio
• Create & use software environments (SDK v1)
• Create & manage environments (CLI v2)