Given "Custom Anomaly Detection" example is not working

I have followed exact same steps but it is showing an error like

"run: open server: open service *udf.Service: failed to load process info for "tTest": write error: write |1: broken pipe"

please suggest

Begin with the Custom Anomaly Detection example and the reported broken-pipe error. Check the example's documented steps and runtime context, then isolate whether the failure is in the UDF service or its setup. The payload names no files or tests; done would require a reproducible diagnosis and a confirmed fix or documentation correction.

Written by the indexing model from the issue text.