ARFaceSample UE4.24 live link fail

When i use unreal editor 4.24 to build ARFaceSample, it logs "LogSockets: Warning: GetAddressInfo failed to resolve host with error SE_HOST_NOT_FOUND [8]
" Then i can’t use live link.How can i fix this bug? Thanks.
MacOS:10.14.5
xcode:11.3
unread editor:4.24.3