Added SDK 11.3 and now cannot link

Hi

I have added SDK 11.3 into Tokyo 10.2.3 and now I cannot link to the iPhone. I can link to the simulator, but when trying to the phone I get numerous errors such as 

[DCC Error] E2597 ld: missing required architecture arm64 in file y:\Documents\Embarcadero\Studio\SDKs\iPhoneOS11.3.sdk/usr/lib/system/libcache.dylib (2 slices) for architecture arm64

How can I resolve this please?

thanks!