Build failed with 500, please run 'jupyter lab build' on the server for full output

Robotics & Edge Computing Jetson & Embedded Systems Jetson Nano
1

Build failed with 500, please run ‘jupyter lab build’ on the server for full output.

What should I do to solve the problem?

New > Terminal > jupyter lab build doesn’t work.

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Please give step by step detail information will help to understand the question.

4

I did Waveshare Jetracer-AI-Kit hardware and software setup well.

And it also runs well I think, but when I first boot to jupyter notebook, it alarms me ‘Build Recommended, JupyterLab build is suggested: jupyer_clickable_image_widget content changed’
so, when I click build another alarms shown up. That is ‘Build failed with 500, please run ‘jupyter lab build’ on the server for full output.’