Core telephony error with Xcode 10

I upgraded our legacy app to use Blackberry Dynamics IOS SDK 5.0.0.63 to be compatible with Xcode 10.1. Even without calling on Blackberry APIs (by not using GD), I would get this error - The connection to service named com.apple.commcenter.coretelephony.xpc was invalidated.

The app would work with Xcode 9.4 and Blackberry Dynamics IOS SDK 3.0.2.51. Good Dynamics (GD) was purchased by Blackberry.


Is it because I have not completely upgraded the GD code that I am getting the telephony error - the app needs to have internet access for a web service call before showing a login screen and it is failing to resolve - Synchronous remote object proxy returned error: Error Domain=NSCocoaErrorDomain Code=4099 "The connection to service named com.apple.commcenter.coretelephony.xpc was invalidated." UserInfo={NSDebugDescription=The connection to service named com.apple.commcenter.coretelephony.xpc was invalidated.


Thank you.