Open Radar

 
Repro steps:

# Unzip testibtooldcrash.zip
$ killall ibtoold
$ cd testibtooldcrash
$ mkdir -p build/out
$ cd build

# Repeat these two lines until crash.
$ /Applications/Xcode.app/Contents/Developer/usr/bin/ibtool --errors --warnings --notices --output-format human-readable-text --compile out/Main_iPhone.storyboardc ../src/Main_iPhone.storyboard
$ cd .. && rm -rf build && mkdir -p build/out/ && cd build

The crash looks like:

2013-11-04 13:23:53.299 ibtoold[4978:d07] -[NSNull pathComponents]: unrecognized selector sent to instance 0x7fff71c0a1f0
Uncaught exception: NSInvalidArgumentException -[NSNull pathComponents]: unrecognized selector sent to instance 0x7fff71c0a1f0 (null)
Backtrace:
  0  0x00007fff82058404 __exceptionPreprocess (in CoreFoundation)
  1  0x00007fff8300be75 objc_exception_throw (in libobjc.A.dylib)
  2  0x00007fff8205b2ed -[NSObject(NSObject) doesNotRecognizeSelector:] (in CoreFoundation)
  3  0x00007fff81fb65b2 ___forwarding___ (in CoreFoundation)
  4  0x00007fff81fb6138 _CF_forwarding_prep_0 (in CoreFoundation)
  5  0x0000000109787cd4 IBIsInternationalizableBasedOnPath (in IDEInterfaceBuilderKit)
  6  0x0000000109787c3c -[IBToolArgumentsContainer validateAfterInterpretingOptionsCollectingErrors:] (in IDEInterfaceBuilderKit)
  7  0x0000000109909006 +[IBArgumentsContainer containerFromArguments:collectingErrors:] (in IDEInterfaceBuilderKit)
  8  0x000000010941159d (in ibtoold)
  9  0x000000010941c23d (in ibtoold)
 10  0x000000010941b447 (in ibtoold)
 11  0x00007fff8ebd45fd start (in libdyld.dylib)
 12  0x000000000000000b