Something went wrong, the schema could not be extracted

rb210002

Hello, I am currently creating a pipeline graph of the pipeline. However whenever I use the command pipeline_graph run "python HandTrackerEdge.py" it keeps on showing me the error Something went wrong, the schema could not be extracted

Can anyone assist me with how to fix this?

Thank you in advance for your help!

jakaskerl

The schema cannot be extracted because there is no pipeline in that file. If you check out HandTrackerEdge.py you will see that HandTrackerBpf class is created with method create_pipeline(), but the method is not run unless the class is instantiated. Which is done in another file.
To extract the pipeline graph you would need to run the file in which the pipeline is created (is the same file in which an object is created from HandTrackerBpf class).

Hope this helps 🙂
Jaka

rb210002

Hi jakaskerl , I looked into the code of HandTrackerBpfEdge.py and HandTrackerEdge.py and found out that the pipeline is getting created in both of the files. So the pipeline graph should be getting be created even if I either use HandTrackerBpfEdge.py or HandTrackerEdge.py right?

I tried running the command pipeline_graph run but still got the same error.

jakaskerl

Hi rb210002

The class is created but needs to be instantiated, otherwise the pipeline_create() is not run.
https://www.udacity.com/blog/2021/11/__init__-in-python-an-overview.html
Hope this helps.
Jaka