ios扫码特定图书崩溃

[chulung]

可能是跟书封面颜色有关系，见附图
ai_barcode/AiBarcodeScannerView.swift:124: Fatal error: Unexpectedly found nil while unwrapping an Optional value
ai_barcode/AiBarcodeScannerView.swift:124: Fatal error: Unexpectedly found nil while unwrapping an Optional value

• thread # 1, queue = 'com.apple.main-thread', stop reason = Fatal error: Unexpectedly found nil while unwrapping an Optional value
  frame #0: 0x00000001a7e6c060 libswiftCore.dylib_swift_runtime_on_report libswiftCore.dylib_swift_runtime_on_report:
  -> 0x1a7e6c060 <+0>: ret
  libswiftCore.dylib_swift_reportToDebugger: 0x1a7e6c064 <+0>: b 0x1a7e6c060 ; _swift_runtime_on_report libswiftCore.dylib_swift_shouldReportFatalErrorsToDebugger:
  0x1a7e6c068 <+0>: adrp x8, 324926
  0x1a7e6c06c <+4>: ldrb w0, [x8, #0xfd1]