Symbol not found: _DJIAircraftModelNameMavicAir

[jfbutterfield]

I have written an iOS app that uses DJIUXSDK. While the app compiles with no issues, when running the app on an iPhone running iOS 12 I run into the following issue on startup:

dyld: Symbol not found: _DJIAircraftModelNameMavicAir
Referenced from: /private/var/containers/Bundle/Application/2DC60CC8-8564-45AD-8EBC-6F692E8A2BCC/Telemetric.app/Frameworks/DJIUXSDK.framework/DJIUXSDK
Expected in: /private/var/containers/Bundle/Application/2DC60CC8-8564-45AD-8EBC-6F692E8A2BCC/Telemetric.app/Frameworks/DJISDK.framework/DJISDK
in /private/var/containers/Bundle/Application/2DC60CC8-8564-45AD-8EBC-6F692E8A2BCC/Telemetric.app/Frameworks/DJIUXSDK.framework/DJIUXSDK

Any ideas,
John