# 2024

# September

# 18th September 2024

If you're a developer who works with Final Cut Pro Workflow Extensions, you may have noticed that things break when you upgrade to macOS Sequoia 15.0 and Xcode 16.0. Doh!

Thankfully the fix is fairly simple once you know the trick...

If you're seeing this:

Simply change this:

To this:

This is because in Xcode 16.0, a clang fix was made that now requires a space after the entry linker option -e to disambiguate this option from other options that start with the letter e.

To fix the error, you simply need to separate out the -e from _ProExtensionMain in the Other Linker Flags build setting.

As of today, the Workflow Extensions SDK hasn't been updated, but hopefully we'll see this fixed in the Xcode template soon.

Thanks to Phil in the CocoaHeads community for helping me work this out!


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