SimpleFirewall: Failed to register with the provider

Hi!

Recently, I've decided to test out the SimpleFirewall project from the last dev conference.
After setting everything up, disabling SIP and enabling systemextensionctl developer on,I have tried to run the project, but I've encountered an error saying: SimpleFirewall[] Failed to register with the provider: Couldn’t communicate with a helper application.


So far, I've tried placing the app inside /Application, reinstalling xcode, but nothing helped. What else could I try?
Thank you.

This could help as well. Found this error while poking around in debug.
The connection to service on pid 0 named {team identifier is here}.com.example.apple-samplecode.SimpleFirewall.SimpleFirewallExtension was invalidated.
edit:
running systemextensionsctl listshows no systemextension running.

Observing the same issue here while trying to debug the SimpleFirewall Project.

It would be nice if the SimpleFirewall sample project was updated with instructions on how to:
  • build it (the instructions provided in another thread (entitlement, developer profile, app IDs) seem to be working but could be a bit more detailed).

  • run it.

  • debug it (not the app but the System Extensions).

SimpleFirewall: Failed to register with the provider
 
 
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