When plugging my iPhone in and starting the Xcode organizer, a yellow circle next to the device show me that \"This device is busy or otherwise unusable by Xcode.\" The Orga
For Xcode 10.1, iOS 13.3 Below helped me.
Copied from https://forums.developer.apple.com/thread/108917
go to ~/Library/Developer/Xcode/iOS DeviceSupport/13.2/Symbols/System/Library/Caches/com.apple.dyld
create empty file if it is not there - .processed_dyld_shared_cache_arm64e
restart xcode and enjoy!