2017-01-30 01:47:12.290356 Barrage[60176:5237976] [LayoutConstraints] Unable to simultaneously satisfy constraints.
Probably at least one of the constraints in the following list is one you don't want.
Try this:
(1) look at each constraint and try to figure out which you don't expect;
(2) find the code that added the unwanted constraint or constraints and fix it.
(
"<NSLayoutConstraint:0x6000000966c0 UITextField:0x7fb2b0709300.width == 661 (active)>",
"<NSLayoutConstraint:0x600000097480 UIView:0x7fb2b04001e0.trailingMargin == UITextField:0x7fb2b0709300.trailing + 15 (active)>",
"<NSLayoutConstraint:0x600000097570 UITextField:0x7fb2b0709300.leading == UIView:0x7fb2b04001e0.leadingMargin + 28 (active)>",
"<NSLayoutConstraint:0x610000099a00 'UIView-Encapsulated-Layout-Width' UIView:0x7fb2b04001e0.width == 736 (active)>"
)

Will attempt to recover by breaking constraint
<NSLayoutConstraint:0x6000000966c0 UITextField:0x7fb2b0709300.width == 661 (active)>

Make a symbolic breakpoint at UIViewAlertForUnsatisfiableConstraints to catch this in the debugger.
The methods in the UIConstraintBasedLayoutDebugging category on UIView listed in <UIKit/UIView.h> may also be helpful.
objc[60176]: Class PLBuildVersion is implemented in both /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator.sdk/System/Library/PrivateFrameworks/AssetsLibraryServices.framework/AssetsLibraryServices (0x124504998) and /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator.sdk/System/Library/PrivateFrameworks/PhotoLibraryServices.framework/PhotoLibraryServices (0x124326880). One of the two will be used. Which one is undefined.
2017-01-30 01:47:13.148 Barrage[60176:5237976] -[__NSCFNumber rangeOfCharacterFromSet:]: unrecognized selector sent to instance 0xb000000000004d25
2017-01-30 01:47:13.155 Barrage[60176:5237976] /Users/myname/Library/Developer/CoreSimulator/Devices/76E63E9E-5219-4F5B-83AB-93A814603430/data/Containers/Data/Application/11B65752-251E-4306-B7CA-2B9537DD6483/Documents/WilddogeError.log
2017-01-30 01:47:13.159 Barrage[60176:5237976] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[__NSCFNumber rangeOfCharacterFromSet:]: unrecognized selector sent to instance 0xb000000000004d25'
*** First throw call stack:
(
0 CoreFoundation 0x000000010ec8ad4b __exceptionPreprocess + 171
1 libobjc.A.dylib 0x000000010e6ec21e objc_exception_throw + 48
2 CoreFoundation 0x000000010ecfaf04 -[NSObject(NSObject) doesNotRecognizeSelector:] + 132
3 CoreFoundation 0x000000010ec10005 forwarding + 1013
4 CoreFoundation 0x000000010ec0fb88 _CF_forwarding_prep_0 + 120
5 UIKit 0x000000010fa4a325 -[UILabel _contentInsetsFromFonts] + 140
6 UIKit 0x000000010fdbb05f -[_UILabelLayer updateContentInsets] + 127
7 UIKit 0x000000010fdbb147 -[_UILabelLayer updateContentLayerSize] + 50
8 UIKit 0x000000010fdbb47a -[_UILabelLayer layoutSublayers] + 25
9 QuartzCore 0x00000001147ee440 _ZN2CA5Layer16layout_if_neededEPNS_11TransactionE + 366
10 QuartzCore 0x00000001147ee2be _ZN2CA5Layer28layout_and_display_if_neededEPNS_11TransactionE + 24
11 QuartzCore 0x000000011477c318 _ZN2CA7Context18commit_transactionEPNS_11TransactionE + 280
12 QuartzCore 0x00000001147a93ff _ZN2CA11Transaction6commitEv + 475
13 QuartzCore 0x00000001147a9d6f _ZN2CA11Transaction17observer_callbackEP19__CFRunLoopObservermPv + 113
14 CoreFoundation 0x000000010ec2f267 CFRUNLOOP_IS_CALLING_OUT_TO_AN_OBSERVER_CALLBACK_FUNCTION + 23
15 CoreFoundation 0x000000010ec2f1d7 __CFRunLoopDoObservers + 391
16 CoreFoundation 0x000000010ec13f8e __CFRunLoopRun + 1198
17 CoreFoundation 0x000000010ec13884 CFRunLoopRunSpecific + 420
18 GraphicsServices 0x0000000114007a6f GSEventRunModal + 161
19 UIKit 0x000000010f7c1c68 UIApplicationMain + 159
20 Barrage 0x000000010d4a628f main + 111
21 libdyld.dylib 0x000000011115e68d start + 1
)
libc++abi.dylib: terminating with uncaught exception of type NSException