Reply to Time Profiler "Required Kernel Recording Resources Are in Use" Error faced the same problem with iPhone 11 Pro on iOS 14.6: XCode Version 12.5 (12E262) Mac OS Big Sur 11.3.1 Enabling/Disabling BitCode didnt help Profiling same app on the simulator (i.e. iOS 14.5, iPhone 8+ Simulator) works fine. Developer Tools & Services Xcode Jun ’21