I download the network extension from here [https://developer.apple.com/documentation/networkextension/filtering_network_traffic].
And I try to build the project, but get some error like this
Signing for "SimpleFirewall" requires a development team.
Select a development team in the Signing & Capabilities editor.
My MBP update to Catalina beta5 and download Xcode11 beta7, but it still shows me the errors
So only use the Apple Developer Programe ID then can build the project succesfully?
Or any other way can I test the sample codes?