dyld:未加载库:@ rpath/CoreNFC.framework/CoreNFC，iOS11和Xcode 9 Beta [英] dyld: Library not loaded: @rpath/CoreNFC.framework/CoreNFC, iOS11 and Xcode 9 beta

问题描述

在 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

有人知道如何解决此问题吗?

Does anyone knows how to fix this?

推荐答案

由于@Chinchan Zu的评论，我将一些答案合并在一起以解决此问题

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

这里是如何将Core NFC标记为可选首先，如本屏幕截图所示，您可以选择在链接的框架和库"中将其导入NFCCore.

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

然后在代码内部，使用此#if检查包装代码.这是我使用的课程

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

这篇关于dyld:未加载库:@ rpath/CoreNFC.framework/CoreNFC，iOS11和Xcode 9 Beta的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！