Xcode 9.3 Auto-Linking library not found for -lswiftCoreAudio

I do not know swift. I have an app that is written in ObjC. I am trying to use a third party package written in Swift and distributed using a cocopods pod. My workspace has to projects one is my ObjC app the other is the third party. everything compiles for the simulator. How ever when I try to link I get a ton of errors. I noticed the following warnings. I know my app is links against AVFoundation, UIKit, ...


```

ld: warning: Auto-Linking library not found for -lswiftCoreAudio

ld: warning: Auto-Linking library not found for -lswiftAccelerate

ld: warning: Auto-Linking library not found for -lswiftCoreMedia

ld: warning: Auto-Linking library not found for -lswiftAVFoundation

ld: warning: Auto-Linking library not found for -lswiftSwiftOnoneSupport

ld: warning: Auto-Linking library not found for -lswiftos

ld: warning: Auto-Linking library not found for -lswiftCore

ld: warning: Auto-Linking library not found for -lswiftQuartzCore

ld: warning: Auto-Linking library not found for -lswiftCoreImage

ld: warning: Auto-Linking library not found for -lswiftCoreGraphics

ld: warning: Auto-Linking library not found for -lswiftDispatch

ld: warning: Auto-Linking library not found for -lswiftCoreFoundation

ld: warning: Auto-Linking library not found for -lswiftObjectiveC

ld: warning: Auto-Linking library not found for -lswiftUIKit

ld: warning: Auto-Linking library not found for -lswiftMediaPlayer

ld: warning: Auto-Linking library not found for -lswiftDarwin

ld: warning: Auto-Linking library not found for -lswiftMetal

ld: warning: Auto-Linking library not found for -lswiftsimd

ld: warning: Auto-Linking library not found for -lswiftFoundation

```


Here is the first error.


```

udefined symbols for architecture x86_64:

"protocol descriptor for Swift._ObjectiveCBridgeable", referenced from:

l_protocol_conformances in libFDWaveformView.a(FDAudioContext.o)

"protocol descriptor for Swift._SwiftNewtypeWrapper", referenced from:

l_protocol_conformances in libFDWaveformView.a(FDAudioContext.o)

```


Thanks in advance


Andy


p.s. If you are curious the 3rd party code can be found at https://github.com/fulldecent/FDWaveformView

Xcode 9.3 Auto-Linking library not found for -lswiftCoreAudio
 
 
Q