App Crash at Apple Reviewers

This summer I created the first version of an iOS app that reads NDEF formatted tags flawless. This November I did som UI updates, test build on local iPhone 7 and Phone X with iOS 12.1, works perfect so I sent it to App Store Connect for review.

Apple review rejected, they give me only the crash log that says it crashes on startup, from the log:

Exception Type:  EXC_CRASH (SIGABRT)
Exception Codes: 0x0000000000000000, 0x0000000000000000
Exception Note:  EXC_CORPSE_NOTIFY
Termination Description: DYLD, Library not loaded: /System/Library/Frameworks/CoreNFC.framework/CoreNFC | Referenced from: /var/containers/Bundle/Application/1C2CF502-D05A-408B-AF51-ED10867F5FB4/twICEme.app/twICEme | Reason: image not found
Triggered by Thread:  0

Is this plugin supposed to work with iOS 12.1 ? Thanks!

[mobidev111]

• problem: App got rejected by Apple Review

  • app crashes on start Error: DYLD, Library not loaded: /System/Library/Frameworks/CoreNFC.framework/CoreNFC

• cause: CoreNFC is not always present, e.g. iPad w/iOS 12

  • CoreNFC not always present, e.g. iPad w/iOS 12, so must be weak linked https://github.com/xamarin/xamarin-macios/commit/9f906918207f8ad19e08d82e0dc4cd2ed5924784
  • only (recent) devices with NFC have the framework (which might be new in iOS 12) https://github.com/xamarin/xamarin-macios/issues/4628#issuecomment-413620630
  • since iOS 12
  • iOS12 does not include CoreNFC for older devices (iPhone 6s, SE and older). https://stackoverflow.com/questions/52562639/xcode-10-swift-4-app-with-corenfc-crashes-in-review-on-ios-12/52566753#52566753

• solution: mark CoreNFC as Optional

  • in Xcode: go to Project settings -> General -> Linked Frameworks and Libraries
  • Add CoreNFC.framework with status optional https://stackoverflow.com/questions/52562639/xcode-10-swift-4-app-with-corenfc-crashes-in-review-on-ios-12/52566753#52566753 https://stackoverflow.com/questions/44946057/dyld-library-not-loaded-rpath-corenfc-framework-corenfc-ios11-and-xcode-9-be/52868674#52868674

• –> change CoreNFC linking in plugin.xml

  • most likely, still needs testing:

-        <framework src="CoreNFC.framework" />
+        <framework src="CoreNFC.framework" weak="true" />

https://github.com/chariotsolutions/phonegap-nfc/blob/master/plugin.xml#L137

[AtanasChachev]

@maxfahl I’ve managed to fix that by going into the xCode project -> Build Phases -> Link Binary With Libraries -> CoreNFC.framework should be Optional instead of Required. That’s for xCode 11.