CoreML fails to import for Xcode 12 / watchOS 7 beta

Question

BAR115 OP

Created Jul ’20

Replies 1

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Participants 1

CoreML fails to link and compile the build when trying to use any of its methods in a watchOS app.

Error:

Code Block Undefined symbols for architecture i386:
  "_OBJC_CLASS_$_MLPredictionOptions", referenced from:
      objc-class-ref in ExtensionDelegate.o
ld: symbol(s) not found for architecture i386
clang: error: linker command failed with exit code 1 (use -v to see invocation)

Steps to reproduce:

Create a new watchOS app
Add import CoreML to ExtensionDelegate
Add let _ = MLPredictionOptions() to ExtensionDelegate
Attempt to compile the project

Any assistance would be helpful!

Answered by BAR115 in 620347022

Sounds like it will be fixed in Xcode 12 Beta 3 +

This turned out to be a bug in the framework SDK - it should be addressed in a coming beta release of Xcode. Unfortunately, there is no workaround.

https://forums.swift.org/t/xcode-12-beta-1-swift-5-3-watch-app-fails-to-link-coreml/38090/6

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Answer 1

BAR115 OP

Jul ’20

Accepted Answer

Sounds like it will be fixed in Xcode 12 Beta 3 +

This turned out to be a bug in the framework SDK - it should be addressed in a coming beta release of Xcode. Unfortunately, there is no workaround.

https://forums.swift.org/t/xcode-12-beta-1-swift-5-3-watch-app-fails-to-link-coreml/38090/6

1