This message will be emitted both when libimobiledevice requires updating, or when it has not yet been installed. It's also not specifically the version of Xcode that it's incompatible with, it's the lockdownd daemon, which is actually more closely tied to iTunes.
Flutter tools
Tools for building Flutter applications.
To run the tests, ensure that no devices are connected,
then navigate to flutter_tools and execute:
../../bin/cache/dart-sdk/bin/pub run test