In my case on Xcode 27.0 problem exist when mac connected personal hotspot, fixed if disconnect USB and connect via Wi-Fi instead and turn off Low Data Mode in mac/network/wi-fi/hotspot

Same problem in Xcode 27.0, 27.1, 27.2, next any of presented point will stuck with message (preparing...). Xcode/Preferences/Components install any component console "xcodebuild -downloadPlatform iOS" - stuck (preparing...) console "sudo xcodebuild -downloadPlatform iOS" - stuck (preparing...) console "killall -9 com.apple.CoreSimulator.CoreSimulatorService xcodebuild CoreDeviceService assetd" before any of 1-3 - stuck (preparing...). Delete all inside ~/Library/Developer/Xcode No Wi-Fi im always connected to personal hotspot, try other two hotspots. 6.1. Low Data Mode On/Off 7. Logout and login 8. console "sudo xcodebuild -downloadPlatform iOS -buildVersion 24B5084k -architectureVariant arm64 -exportPath ~/Downloads" im try to download dmg to downloads but this point not work too. 8.1. On web site iOS 27.* runtime not found, download from site removed and asset downloading not work. Xcode 27 not usable.

Xcode Archive Open archives window Show in finder Show package contents Go to /Products/Applications/%YOUR_APP%.app/Contents/Frameworks/ Backup deleted files, delete google "frameworks" that cause error ITMS-90238, GoogleAppMeasurementIdentitySupport.framework, FirebaseAnalytics.framework etc Upload modified archive again from Xcode Archives window Look to the size of frameworks, this is something wrong with it. After all build processing completed and I check work in TestFlight and all ok