dyld: Symbol not found: ___chkstk_darwin
Referenced from: /private/var/containers/Bundle/Application/2D78E028-8BEF-435C-9194-89A1D4C6F1AB/Client.app/Frameworks/libswift_Concurrency.dylib (which was built for iOS 13.0)
Expected in: /usr/lib/libSystem.B.dylib
in /private/var/containers/Bundle/Application/2D78E028-8BEF-435C-9194-89A1D4C6F1AB/Client.app/Frameworks/libswift_Concurrency.dylib
What is your build target?
Build target: iOS10.0 Debugging device: iOS12.5.5
Crashes even with iOS 14.5 simulator
xcode 13.2.1 still crash when launch to device (iOS 12.0, iPhone 5S) Library not loaded: /usr/lib/swift/libswiftCore.dylib
I have same issue with Xcode 13.2 and 13.2.1, but version 13.1 of Xcode resolve that problem. You can download it here https://developer.apple.com/download/all/?q=Xcode%2013
Same here
I have the same issue, also on Xcode 13.2.1. Our app compiles for iOS 12 and runs in simulator, but crashes on a real device with the same error that OP posted.
Downgrade to Xcode 13.1 for now as this seems to be the only solution till they release another fix.
add libswift_Concurrency.tbd in the "Link Binary with Libraries" build phase (and make it optional).
libswift_Concurrency.tbd not work with Xcode 13.2.1
Same, I got plenty of crashes in my app ( ScannerLens ). I have tried to make libswift_Concurrency.tbd optional but it doesn't work! I do not use any concurrency api at all! Finally I remove the libswift_Concurrency.tbd file after build finished, and it works. you can try like:
Edit Scheme... -> Build -> Post-actions -> Click '+' to add New Run Script
rm "${BUILT_PRODUCTS_DIR}/${FRAMEWORKS_FOLDER_PATH}/libswift_Concurrency.dylib" || echo "libswift_Concurrency.dylib not exists"
And then wait a new xcode version to fix this issue.
According to recent posts in https://forums.swift.org/t/swift-concurrency-back-deploy-issue/53917/27 seems like a fix is in Xcode 13.3 (currently beta)?
Xcode 13.3 beta 1 has a fix for the crash.