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Help Center/ ModelArts/ Troubleshooting/ Training Jobs/ Service Code Issues/ Error Message "Unexpected keyword argument passed to optimizer" Displayed in Logs

Error Message "Unexpected keyword argument passed to optimizer" Displayed in Logs

Updated on 2024-06-11 GMT+08:00

Symptom

After Keras is upgraded to 2.3.0 or later, the following error message is displayed:
TypeError: Unexpected keyword argument passed to optimizer: learning_rate

Possible Causes

Certain parameters have been renamed in Keras. For details, see Keras 2.3.0.

Figure 1 API changes

Solution

Rename learning_rate lr.

Summary and Suggestions

Before creating a training job, use the ModelArts development environment to debug the training code to maximally eliminate errors in code migration.

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