macOS Xcode application won't launch?

[Intelligent]

I get a "build succeeded" but the app is just bouncing in the dock and this message under the output section

2014-06-17 15:35:44.606 ASRWriter[5426:303] An uncaught exception was raised
2014-06-17 15:35:44.606 ASRWriter[5426:303] *** -[NSKeyedUnarchiver decodeObjectForKey:]: cannot decode object of class (WebView)
2014-06-17 15:35:44.606 ASRWriter[5426:303] (
	0   CoreFoundation                      0x00007fff8e37825c __exceptionPreprocess + 172
	1   libobjc.A.dylib                     0x00007fff91736e75 objc_exception_throw + 43
	2   CoreFoundation                      0x00007fff8e37810c +[NSException raise:format:] + 204
	3   Foundation                          0x00007fff8c754dd9 _decodeObjectBinary + 2349
	4   Foundation                          0x00007fff8c755f9f -[NSKeyedUnarchiver _decodeArrayOfObjectsForKey:] + 1774
	5   Foundation                          0x00007fff8c75619b -[NSArray(NSArray) initWithCoder:] + 202
	6   Foundation                          0x00007fff8c754e92 _decodeObjectBinary + 2534
	7   Foundation                          0x00007fff8c75434d _decodeObject + 288
	8   AppKit                              0x00007fff95ec15cc -[NSView initWithCoder:] + 1949
	9   Foundation                          0x00007fff8c754e92 _decodeObjectBinary + 2534
	10  Foundation                          0x00007fff8c75434d _decodeObject + 288
	11  AppKit                              0x00007fff95ec7458 -[NSWindowTemplate initWithCoder:] + 1043
	12  Foundation                          0x00007fff8c754e92 _decodeObjectBinary + 2534
	13  Foundation                          0x00007fff8c755f9f -[NSKeyedUnarchiver _decodeArrayOfObjectsForKey:] + 1774
	14  Foundation                          0x00007fff8c7555d7 -[NSSet(NSSet) initWithCoder:] + 203
	15  Foundation                          0x00007fff8c754e92 _decodeObjectBinary + 2534
	16  Foundation                          0x00007fff8c75434d _decodeObject + 288
	17  AppKit                              0x00007fff95e99770 -[NSIBObjectData initWithCoder:] + 155
	18  Foundation                          0x00007fff8c754e92 _decodeObjectBinary + 2534
	19  Foundation                          0x00007fff8c75434d _decodeObject + 288
	20  AppKit                              0x00007fff95e9958f loadNib + 232
	21  AppKit                              0x00007fff95e98b8c +[NSBundle(NSNibLoading) _loadNibFile:nameTable:withZone:ownerBundle:] + 288
	22  AppKit                              0x00007fff95e9897c -[NSBundle(NSNibLoading) loadNibNamed:owner:topLevelObjects:] + 197
	23  AppKit                              0x00007fff95e9876b +[NSBundle(NSNibLoading) loadNibNamed:owner:] + 357
	24  AppKit                              0x00007fff95e945b7 NSApplicationMain + 448
	25  ASRWriter                    0x0000000100001612 main + 34
	26  libdyld.dylib                       0x00007fff8d9f75fd start + 1
)
2014-06-17 15:35:44.610 ASRWriter[5426:303] *** Terminating app due to uncaught exception 'NSInvalidUnarchiveOperationException', reason: '*** -[NSKeyedUnarchiver decodeObjectForKey:]: cannot decode object of class (WebView)'
*** First throw call stack:
(
	0   CoreFoundation                      0x00007fff8e37825c __exceptionPreprocess + 172
	1   libobjc.A.dylib                     0x00007fff91736e75 objc_exception_throw + 43
	2   CoreFoundation                      0x00007fff8e37810c +[NSException raise:format:] + 204
	3   Foundation                          0x00007fff8c754dd9 _decodeObjectBinary + 2349
	4   Foundation                          0x00007fff8c755f9f -[NSKeyedUnarchiver _decodeArrayOfObjectsForKey:] + 1774
	5   Foundation                          0x00007fff8c75619b -[NSArray(NSArray) initWithCoder:] + 202
	6   Foundation                          0x00007fff8c754e92 _decodeObjectBinary + 2534
	7   Foundation                          0x00007fff8c75434d _decodeObject + 288
	8   AppKit                              0x00007fff95ec15cc -[NSView initWithCoder:] + 1949
	9   Foundation                          0x00007fff8c754e92 _decodeObjectBinary + 2534
	10  Foundation                          0x00007fff8c75434d _decodeObject + 288
	11  AppKit                              0x00007fff95ec7458 -[NSWindowTemplate initWithCoder:] + 1043
	12  Foundation                          0x00007fff8c754e92 _decodeObjectBinary + 2534
	13  Foundation                          0x00007fff8c755f9f -[NSKeyedUnarchiver _decodeArrayOfObjectsForKey:] + 1774
	14  Foundation                          0x00007fff8c7555d7 -[NSSet(NSSet) initWithCoder:] + 203
	15  Foundation                          0x00007fff8c754e92 _decodeObjectBinary + 2534
	16  Foundation                          0x00007fff8c75434d _decodeObject + 288
	17  AppKit                              0x00007fff95e99770 -[NSIBObjectData initWithCoder:] + 155
	18  Foundation                          0x00007fff8c754e92 _decodeObjectBinary + 2534
	19  Foundation                          0x00007fff8c75434d _decodeObject + 288
	20  AppKit                              0x00007fff95e9958f loadNib + 232
	21  AppKit                              0x00007fff95e98b8c +[NSBundle(NSNibLoading) _loadNibFile:nameTable:withZone:ownerBundle:] + 288
	22  AppKit                              0x00007fff95e9897c -[NSBundle(NSNibLoading) loadNibNamed:owner:topLevelObjects:] + 197
	23  AppKit                              0x00007fff95e9876b +[NSBundle(NSNibLoading) loadNibNamed:owner:] + 357
	24  AppKit                              0x00007fff95e945b7 NSApplicationMain + 448
	25  ASRWriter                    0x0000000100001612 main + 34
	26  libdyld.dylib                       0x00007fff8d9f75fd start + 1
)
libc++abi.dylib: terminating with uncaught exception of type NSException
(lldb)

 

[xStep]

I'm confused. Your subject title says Xcode is not starting, but your text says you get "build succeeded" which would indicate Xcode is running.

Please clarify.

The error I'm seeing is that some app is trying to read an archived object but it's falling down.

 

[ArtOfWarfare]

Here's the problem from your log:

-[NSKeyedUnarchiver decodeObjectForKey:]: cannot decode object of class (WebView)

Where in your code did you type out anything about NSKeyedUnarchiver? I'm going to guess you didn't; instead, I'm going to guess that this is getting used automagically for you to load your UI from a xib files.

That xib file says that your app needs to load a WebView class and the runtime is exploding saying it doesn't know what a WebView is. Likely because there's a framework you need to have your project linked against, which you neglected (I think the framework in question will be called... WebKit).

Those are my guesses, anyways. Let us know if you need more help.