dyld: Library not loaded: @rpath/CoreNFC.framework/CoreNFC, iOS11 and Xcode 9 beta

Question

I get this error and app get crash while run CoreNFC sample code in Xcode 9.0 beta 2

dyld: Library not loaded: @rpath/CoreNFC.framework/CoreNFC
  Referenced from: /var/containers/Bundle/Application/2837709C-C852-4811-B696-38F2725554D4/iOS-11-by-Examples.app/iOS-11-by-Examples
  Reason: image not found

Does anyone knows how to fix this?

Are you running on a device or in the simulator? CoreNFC might not be available in the simulator… — Matusalem Marques, Jul 06 '17 at 10:22
@MatusalemMarques I'm running in iOS 11 beta upgraded iPad mini. — Sunil Targe, Jul 06 '17 at 10:23
here is how to mark Core NFC as Optional https://stackoverflow.com/questions/52562639/xcode-10-swift-4-app-with-corenfc-crashes-in-review-on-ios-12 — Chinchan Zu, Oct 03 '18 at 10:24

score 13 · Answer 1 · answered Oct 18 '18 at 07:05

I combined some answers together to fix this thanks to @Chinchan Zu's comment

here is how to mark Core NFC as Optional stackoverflow question

First you make import to NFCCore in "Linked Frameworks and Libraries" as optional as in this screenshot

Then inside your code you wrap your code with this #if check. Here is the class I used

#if canImport(CoreNFC)

import Foundation
import CoreNFC

#endif

class NFCManagar: NSObject {
  #if canImport(CoreNFC)
  var session: NFCNDEFReaderSession?
  #endif

  var items = [Item]()
  var completion: ((_ success: Bool, _ error: Error?)-> Void)?

  func beginScanning(items: [Item], completion: @escaping (_ success: Bool, _ error: Error?)-> Void) {
      self.completion = completion
      self.items.removeAll()
      self.items.append(contentsOf: items)

      #if canImport(CoreNFC)
      session = NFCNDEFReaderSession(delegate: self, queue: nil, invalidateAfterFirstRead: true)
      session?.alertMessage = "Hold your iPhone near check in/out device."
      session?.begin()
      #endif
  }

}

#if canImport(CoreNFC)
extension NFCManagar: NFCNDEFReaderSessionDelegate {

  // MARK: - NFCNDEFReaderSessionDelegate

  /// - Tag: processingTagData
  func readerSession(_ session: NFCNDEFReaderSession, didDetectNDEFs messages: [NFCNDEFMessage]) {
          debugPrint("Nfc is detected")
  }

  /// - Tag: endScanning
  func readerSession(_ session: NFCNDEFReaderSession, didInvalidateWithError error: Error) {
      // Check the invalidation reason from the returned error.
      if let readerError = error as? NFCReaderError {
          // Show an alert when the invalidation reason is not because of a success read
          // during a single tag read mode, or user canceled a multi-tag read mode session
          // from the UI or programmatically using the invalidate method call.
          if (readerError.code != .readerSessionInvalidationErrorFirstNDEFTagRead)
              && (readerError.code != .readerSessionInvalidationErrorUserCanceled) {

              debugPrint("Nfc didInvalidateWithError \(error)")
          }
      }

      // A new session instance is required to read new tags.
      self.session = nil
  }
}
#endif

not working with cocoapods, please look at our issue: https://stackoverflow.com/questions/55077857/if-canimport-does-not-find-frameworks-with-cocoapods — Viktor Vostrikov, Mar 12 '19 at 20:06
I could not know why it does not work with Cocoapods. Could you post an issue on Cocoapods' repository on Github? — Khaled Annajar, Mar 13 '19 at 08:31
I have posted, still working on it... Should I specify weak_frameworks in other linker flags inside of build settings? maybe this cause issue? Because, I have specified in the past — Viktor Vostrikov, Mar 13 '19 at 08:50

score 1 · Answer 2 · answered Jul 06 '17 at 10:31

1

CoreNFC is only available on iPhone 7 and iPhone 7 Plus devices. Make sure you're running your code on one of those.

See the WWDC session and the relevant documentation for more information.

https://developer.apple.com/videos/play/wwdc2017/718/

https://developer.apple.com/documentation/corenfc

answered Jul 06 '17 at 10:31

Matusalem Marques

2,399
2
18
28

Thanks for the answer. I'll check iPhone 7 with iOS 11 and will reply here. – Sunil Targe Jul 06 '17 at 10:46
I get an error in Xcode when I try to build on my iPhone 5s, it's related to NFC capabilities. But it works fine on my iPhone 7. – Artem Novichkov Jul 06 '17 at 17:31

score 0 · Answer 3 · answered Dec 11 '19 at 18:27

0

For Xcode 11 make CoreNFC.framework "Do not Embed". And also wrap your code with #if check.

answered Dec 11 '19 at 18:27

Sokolova Natalia

11
1

dyld: Library not loaded: @rpath/CoreNFC.framework/CoreNFC, iOS11 and Xcode 9 beta

3 Answers3

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