→ Target 'mytarget': CodeSign /path/to/mytarget.app
○ Target 'mytarget': SetGroup staff /path/to/mytarget.app
○ Target 'mytarget': SetMode u+w,go-w,a+rX /path/to/mytarget.app
○ Target 'mytarget': SetGroup staff /path/to/mytarget.app
Fixed it by setting $(USER) in mytarget -> Build Settings -> Deployment -> Install Owner.
from:https://stackoverflow.com/questions/50709330/cycle-inside-building-could-produce-unreliable-results-xcode-10-error
