19:28:15.138 xcodebuild Requested but did not find extension point with identifier for extension of plug-in .IDEWatchSupportCore Objc: Class ATCRTRestoreInfoFTABSubfile is implemented in both /usr/lib/libauthinstall.dylib (0x20496e040) and /Library/Apple/System/Library/PrivateFrameworks/amework/Versions/A/MobileDevice (0x105ad8688). Objc: Class AppleTypeCRetimerFirmwareCopier is implemented in both /usr/lib/libauthinstall.dylib (0x20496dff0) and /Library/Apple/System/Library/PrivateFrameworks/amework/Versions/A/MobileDevice (0x105ad8638). Objc: Class ATCRTRestoreInfoFTABFile is implemented in both /usr/lib/libauthinstall.dylib (0x20496dfa0) and /Library/Apple/System/Library/PrivateFrameworks/amework/Versions/A/MobileDevice (0x105ad85e8). Objc: Class AppleTypeCRetimerFirmwareRequestCreator is implemented in both /usr/lib/libauthinstall.dylib (0x20496df50) and /Library/Apple/System/Library/PrivateFrameworks/amework/Versions/A/MobileDevice (0x105ad8598). Objc: Class AppleTypeCRetimerFirmwareAggregateRequestCreator is implemented in both /usr/lib/libauthinstall.dylib (0x20496df00) and /Library/Apple/System/Library/PrivateFrameworks/amework/Versions/A/MobileDevice (0x105ad8548). Objc: Class AppleTypeCRetimerRestoreInfoHelper is implemented in both /usr/lib/libauthinstall.dylib (0x20496deb0) and /Library/Apple/System/Library/PrivateFrameworks/amework/Versions/A/MobileDevice (0x105ad84f8). Note, while -help causes trouble -usage does not: % xcodebuild -usageīe glad you're not on my other (M1) Mac: % xcodebuild -help This with Xcode 13.3.1 and CommandLineTools installed (both by request then, again, manually).

19:10:49.692 xcodebuild Requested but did not find extension point with identifier for extension of plug-in .IDEWatchSupportCore You don't even have to build anything to get this to happen: % xcodebuild -help None of the suggestions made here have resolved the problem for me (nor for some others, as noted above).

For apple instal Class of '09