Help Center/ ModelArts/ Troubleshooting/ Training Jobs/ OBS Operation Issues/ Error Message "errorMessage:The specified key does not exist" Displayed in Logs

Updated on 2025-06-06 GMT+08:00

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Error Message "errorMessage:The specified key does not exist" Displayed in Logs

Symptom

When MoXing is used to access an OBS path, the following error is displayed:

ERROR:root:
stat:404
errorCode:NoSuchKey
errorMessage:The specified key does not exist.

Possible Causes

The possible causes are as follows:

The object is unavailable in the bucket. For details about OBS error codes, see OBS Server-Side Error Codes.

Solution

Check whether the OBS path and object are in correct format.
Use the local PyCharm to remotely access notebook for debugging.

Summary and Suggestions

Before creating a training job, use the ModelArts development environment to debug your training code and minimize migration errors.

Use the notebook environment for online debugging. For details, see Using JupyterLab to Develop Models.
Use a local IDE (PyCharm or VS Code) to access the cloud environment for debugging. For details, see Using a Local IDE to Develop Models.

Parent topic: OBS Operation Issues

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