Cannot reopen Vertex Workbench Notebook after Saving from Local VSCode

[jsukup]

I've created a User-Managed Notebook for Vertex AI and have connected to the compute instance via IAP on my local machine. I'm able to successfully open the Jupyter Notebooks saved on the Workbench instance and execute their code in my local VSCode without issue. However, when I save the Notebook and try to reopen it in JupyterLab in my browser, I receive an error:

File Load Error for [FILE_NAME]

Unhandled error

I can tell that the files are successfully being saved back to the instance based on their Modified: [DATETIME] stamp but I cannot open them.

[lsolatorio]

Hi @jsukup, 

Welcome and thank you for reaching out to our community.

You can refer to this "Connecting to and opening JupyterLab" troubleshooting guide, here listed different connectivity concerns and their respective diagnosis that can help you with your use case.

Although troubleshooting guides are still available, consider migrating your user-managed notebooks to Vertex AI Workbench instances as they are already deprecated and will end support on January 30, 2025.

On January 30, 2025, support for user-managed notebooks will end and the ability to create user-managed notebooks instances will be removed. Existing instances will continue to function but patches, updates, and upgrades won't be available. To continue using Vertex AI Workbench, we recommend that you migrate your user-managed notebooks instances to Vertex AI Workbench instances.

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You can also reach out to Vertex AI support for further assistance as they have access to more advanced troubleshooting tools and can provide specific guidance in resolving your concern.

Hope this helps.