MacOS 10.9.5 - "Symbol not found: _OBJC_CLASS_$_NSMutableURLRequest”


I’ve upgraded our products to JUCE 6 and just ran into a new issue with our Registration utility app on MacOS 10.9.5. See image below.

The only thing I can find online about that error relates to IOS Swift apps.

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We’re also able to reproduce this with one of our products.

@ComposerShield what Xcode did you use to build it?


It was Xcode12 Beta.

It actually seems to be happening with many of our products now…with different “OBJC_CLASS” symbols missing.

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We’ve tested this for sanity. On our macOS 10.8 test machine, a build from the exact same commit (of JUCE and our product) crashes when build with Xcode 12.2 / macOS 10.5.7, works when build using Xcode 11 on Mojave.

We’ll investigate. I’ll try making a JUCE demo project to reproduce this with bare minimal.

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