Swift Package Manager Leads to Crash in armv7k devices

Mazyod · May 30, 2020, 12:13pm

Hello,

I've recently migrated my app to use Swift Package Manager (SPM), and made some minimal changes and dependency upgrades. To my surprise, the app is now crashing on launch for armv7k Apple Watch devices! I've found some hints that this is indeed SPM related, but can't figure out a workaround...

The crash occurs on accessing an SPM dependency APIs (RxSwift) within my dynamic framework (Prayerz), which is built inside the workspace.

Any pointers on the topic are appreciated!

P.S. App was released with Xcode ~~11.4.1~~ 11.5 (Build SDK: 17F65)

paulb777 · May 30, 2020, 1:58pm

This is likely a known Xcode 11.4.* code generation bug for 32 bit devices. Use Xcode 11.3 or 11.5 instead.

More details in Crashes on 32 bit after Xcode 11.4

Mazyod · May 30, 2020, 8:03pm

My bad, it was released with Xcode 11.5

Mazyod · June 1, 2020, 1:40am

I ended up removing SPM dependencies from the watchOS targets, and integrating them with Carthage instead. Submitted the update yesterday, and today users have verified that the issue was resolved.