xcode 4 iOS 4.3 project template doesn't work - objective-c

Question

I'm trying to create a multi-view iOS (4.3) application in xcode 4 using the view-based application template but have so far had no luck. Everything builds but then crashes without error, with me getting the message SIGABRT in the line "int retVal = UIApplicationMain(argc, argv, nil, nil);" in supporting file-> main.m
The same thing happens in both my application and the plain (view-based application ) template from xcode.
Any ideas what the problem might be?
Here's the log:
GNU gdb 6.3.50-20050815 (Apple version gdb-1518) (Sat Feb 12 02:52:12 UTC 2011)
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This GDB was configured as "x86_64-apple-darwin".Attaching to process 3884.
2011-03-15 18:18:16.226 Server-sideStory[3884:207] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: 'UISplitViewController is only supported when running under UIUserInterfaceIdiomPad'
*** Call stack at first throw:
(
0 CoreFoundation 0x00dc45a9 __exceptionPreprocess + 185
1 libobjc.A.dylib 0x00f18313 objc_exception_throw + 44
2 CoreFoundation 0x00d7cef8 +[NSException raise:format:arguments:] + 136
3 CoreFoundation 0x00d7ce6a +[NSException raise:format:] + 58
4 UIKit 0x0031d512 -[UISplitViewController _commonInit] + 165
5 UIKit 0x0031d971 -[UISplitViewController initWithCoder:] + 92
6 Foundation 0x00784c24 _decodeObjectBinary + 3296
7 Foundation 0x00783d91 _decodeObject + 224
8 UIKit 0x00211979 -[UIRuntimeConnection initWithCoder:] + 212
9 Foundation 0x00784c24 _decodeObjectBinary + 3296
10 Foundation 0x007859f5 -[NSKeyedUnarchiver _decodeArrayOfObjectsForKey:] + 1354
11 Foundation 0x00786024 -[NSArray(NSArray) initWithCoder:] + 596
12 Foundation 0x00784c24 _decodeObjectBinary + 3296
13 Foundation 0x00783d91 _decodeObject + 224
14 UIKit 0x00210c36 -[UINib instantiateWithOwner:options:] + 804
15 UIKit 0x00212ab7 -[NSBundle(UINSBundleAdditions) loadNibNamed:owner:options:] + 168
16 UIKit 0x0001817a -[UIApplication _loadMainNibFile] + 172
17 UIKit 0x00018cf4 -[UIApplication _runWithURL:payload:launchOrientation:statusBarStyle:statusBarHidden:] + 291
18 UIKit 0x00023617 -[UIApplication handleEvent:withNewEvent:] + 1533
19 UIKit 0x0001babf -[UIApplication sendEvent:] + 71
20 UIKit 0x00020f2e _UIApplicationHandleEvent + 7576
21 GraphicsServices 0x00ffd992 PurpleEventCallback + 1550
22 CoreFoundation 0x00da5944 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE1_PERFORM_FUNCTION__ + 52
23 CoreFoundation 0x00d05cf7 __CFRunLoopDoSource1 + 215
24 CoreFoundation 0x00d02f83 __CFRunLoopRun + 979
25 CoreFoundation 0x00d02840 CFRunLoopRunSpecific + 208
26 CoreFoundation 0x00d02761 CFRunLoopRunInMode + 97
27 UIKit 0x000187d2 -[UIApplication _run] + 623
28 UIKit 0x00024c93 UIApplicationMain + 1160
29 Server-sideStory 0x00002719 main + 121
30 Server-sideStory 0x00002695 start + 53
)
terminate called after throwing an instance of 'NSException'
sharedlibrary apply-load-rules all
Current language: auto; currently objective-c

Answer 1

It's telling you that UISplitViewController is not supported on the iPhone - only works on the iPad.