Hier ist eine Antwort von Embarcadero:
There are known problems with the latest version of Xcode and the importing of the macOS 11
SDK and the iOS 14
SDK. At this stage all I can recommend is that you revert to Xcode 11.7 which has macOS 11.5.6 and iOS 13.7. The following steps will allow you to keep your existing Xcode installation.
Please do the following:
1. Download
https://download.developer.apple.com...Xcode_11.7.xip
2. Extract the xip file using Apple's archive utility in your downloads folder. (a xip file is a codesigned zip file unique to Apple)
3. When this has extracted, rename the Xcode
package to say Xcode11.7.
4. Drag this over to your Applications folder. Because it has been renamed, it won't overwrite your existing Xcode installation.
5. Launch either version of Xcode.
6. Open Xcode | Preferences and select Location.
7. In this screen there is a command line tools dropdown. Select Xcode 11.7.
8. Back in Delphi, try to add a new macOS
SDK. This time you should get an option to add 11.5.
Regards
Eine wirklich sehr schnelle Antwort
Ich hoffe das ist hilfreich!