Swift Error Note

2 minute read

Type has no member

  • Search:

    This problem usually occurs in the module import error: wrong variable name, etc…

  • Cause: In my case, the problem is that the error is in the model class and I tried to use inside variable.

  • Result: Fixed the error in the model class.

Similar Error

forUndefinedKey, NSUnknownKeyException

  • Error msg:

    setValue:forUndefinedKey:]: this class is not key value coding-compliant for the key f.”

  • Search:
  • Cause: Referenced the deleted IBOulet in Storyboard.
  • Result: Implemented the IBOulet in source code.

git fail to commit files: ‘/newfolder’ didnot match any files(s) known to git

‘self’ parameter (inside struct init)

  • Error msg:
    1. Escaping closure captures mutating ‘self’ parameter
    2. ‘self’ used before all stored properties are initialized
init_error
error in init method

Crash: NSInvalidArgumentException

Error message
  2021-08-05 21:55:52.203428+0900 SmokingArea[8667:1145459] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: 'Invalid Region <center:+37.29994550, +126.89833000 span:+189.78684392, +130.01675267>'   
*** First throw call stack:   
(   
	0   CoreFoundation                      0x00007fff2041daf2 __exceptionPreprocess + 242   
	1   libobjc.A.dylib                     0x00007fff20177e78 objc_exception_throw + 48   
	2   CoreFoundation                      0x00007fff2041d793 -[NSException init] + 0   
	3   MapKit                              0x00007fff2f6efcc8 -[MKMapView setRegion:animated:] + 687   
	4   SmokingArea                         0x0000000108c66fa8 $s11SmokingArea14ViewControllerC15mapScaleStepperyySo9UIStepperCF + 1256   
	5   SmokingArea                         0x0000000108c67034 $s11SmokingArea14ViewControllerC15mapScaleStepperyySo9UIStepperCFTo + 68    
	6   UIKitCore                           0x00007fff2467b62e -[UIApplication sendAction:to:from:forEvent:] + 83    
	7   UIKitCore                           0x00007fff23fa496c -[UIControl sendAction:to:forEvent:] + 223    
	8   UIKitCore                           0x00007fff23fa4c8f -[UIControl     _sendActionsForEvents:withEvent:] + 332   
	9   UIKitCore                           0x00007fff24a68f0a -[UIStepperHorizontalVisualElement _updateCount:] + 367   
	10  UIKitCore                           0x00007fff24a68be0 -[UIStepperHorizontalVisualElement endTrackingWithTouch:withEvent:] + 33   
	11  UIKitCore                           0x00007fff23fd0750 -[UIStepper endTrackingWithTouch:withEvent:] + 95   
	12  UIKitCore                           0x00007fff23fa3549 -[UIControl touchesEnded:withEvent:] + 453   
	13  UIKitCore                           0x00007fff246b7d6a -[UIWindow _sendTouchesForEvent:] + 1287   
	14  UIKitCore                           0x00007fff246b9be3 -[UIWindow sendEvent:] + 4774   
	15  UIKitCore                           0x00007fff246938f6 -[UIApplication sendEvent:] + 633   
	16  UIKitCore                           0x00007fff2472439c __processEventQueue + 13895   
	17  UIKitCore                           0x00007fff2471ad0f __eventFetcherSourceCallback + 104   
	18  CoreFoundation                      0x00007fff2038c37a __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE0_PERFORM_FUNCTION__ + 17   
	19  CoreFoundation                      0x00007fff2038c272 __CFRunLoopDoSource0 + 180   
	20  CoreFoundation                      0x00007fff2038b754 __CFRunLoopDoSources0 + 248   
	21  CoreFoundation                      0x00007fff20385f1f __CFRunLoopRun + 878   
	22  CoreFoundation                      0x00007fff203856c6 CFRunLoopRunSpecific + 567   
	23  GraphicsServices                    0x00007fff2b76adb3 GSEventRunModal + 139   
	24  UIKitCore                           0x00007fff24675187 -[UIApplication _run] + 912   
	25  UIKitCore                           0x00007fff2467a038 UIApplicationMain + 101   
	26  libswiftUIKit.dylib                 0x00007fff541545f2 $s5UIKit17UIApplicationMainys5Int32VAD_SpySpys4Int8VGGSgSSSgAJtF + 98   
	27  SmokingArea                         0x0000000108c6c62a $sSo21UIApplicationDelegateP5UIKitE4mainyyFZ + 122   
	28  SmokingArea                         0x0000000108c6c59e $s11SmokingArea11AppDelegateC5$mainyyFZ + 46   
	29  SmokingArea                         0x0000000108c6c679 main + 41   
	30  libdyld.dylib                       0x00007fff20256409 start + 1   
	31  ???                                 0x0000000000000001 0x0 + 1   
)   
libc++abi.dylib: terminating with uncaught exception of type NSException   
*** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: 'Invalid Region <center:+37.29994550, +126.89833000 span:+189.78684392, +130.01675267>'   
terminating with uncaught exception of type NSException    
CoreSimulator 732.18.0.2 - Device: iPhone 12 Pro Max (C3DAD0D5-84C9-4EA4-8E41-76B189B5C107) - Runtime: iOS 14.2 (18B79) - DeviceType: iPhone 12 Pro Max    
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