XCode 4.2 crashes on Snow Leopard

Just got the XCode 4.2 for iOS SDK 5.0 installed on Snow Leopard. Just keeps on crashing.

I installed to /D开发者_Python百科eveloper4/ to keep my previous XCode 3 around, just in case.

Anyone got this problem? Solved it?

Edit: When I start a new project, I get this error:

ASSERTION FAILURE in /SourceCache/IDEFoundation/IDEFoundation-937/Framework/Classes/Model/SourceControl/IDESourceControlTree.m:119 Details: Invalid location for source tree. Initialization failed. Object: Method: -initWithDictionary:sourceControlExtension:sourceControlManager: Thread: {name = (null), num = 1} Hints:

0: Replacement view is installing: Backtrace: 0 0x00000001009e6646 -[IDEAssertionHandler handleFailureInMethod:object:fileName:lineNumber:messageFormat:arguments:] (in IDEKit) 1 0x000000010006aaa4 _DVTAssertionFailureHandler (in DVTFoundation) 2 0x00000001005a314f -[IDESourceControlTree initWithDictionary:sourceControlExtension:sourceControlManager:] (in IDEFoundation) 3 0x00000001005a2900 -[IDESourceControlRepository initWithDictionary:sourceControlExtension:sourceControlManager:] (in IDEFoundation) 4 0x00000001005a20ac -[IDESourceControlManager loadRepositories] (in IDEFoundation) 5 0x000000010059cc9b -[IDESourceControlManager init] (in IDEFoundation) 6 0x000000010059cad2 __53+[IDESourceControlManager sharedSourceControlManager]_block_invoke_0 (in IDEFoundation) 7 0x00007fff86e7c705 dispatch_once_f (in libSystem.B.dylib) 8 0x000000010059caa1 +[IDESourceControlManager sharedSourceControlManager] (in IDEFoundation) 9 0x00000001006732d1 +[IDESnapshotsManager sourceControlSystemUsedForSnapshotsWithError:] (in IDEFoundation) 10 0x000000010067326d -[IDESnapshotsManager areSnapshotsEnabled] (in IDEFoundation) 11 0x0000000100b66369 -[IDESnapshotsListController loadAllCommits] (in IDEKit) 12 0x0000000100b65acc -[IDESnapshotsListController loadView] (in IDEKit) 13 0x00007fff830e36a3 -[NSViewController view] (in AppKit) 14 0x000000010021dc7b -[DVTViewController view] (in DVTKit) 15 0x0000000100220e00 __42-[DVTReplacementView _setupViewController]_block_invoke_0 (in DVTKit) 16 0x000000010002e85e DVTInvokeWithFailureHint (in DVTFoundation) 17 0x0000000100220cd3 -[DVTReplacementView _setupViewController] (in DVTKit) 18 0x0000000100220ba5 -[DVTReplacementView installedViewController] (in DVTKit) 19 0x000000010022bc8c -[DVTReplacementView layoutTopDown] (in DVTKit) 20 0x000000010021ba33 __84+[DVTAutoLayoutView _recursivelyLayoutSubviewsOfView:populatingSetWithLaidOutViews:]_block_invoke_0 (in DVTKit) 21 0x000000010021bae2 __84+[DVTAutoLayoutView _recursivelyLayoutSubviewsOfView:populatingSetWithLaidOutViews:]_block_invoke_0 (in DVTKit) 22 0x000000010021bae2 __84+[DVTAutoLayoutView _recursivelyLayoutSubviewsOfView:populatingSetWithLaidOutViews:]_block_invoke_0 (in DVTKit) 23 0x000000010021bae2 __84+[DVTAutoLayoutView _recursivelyLayoutSubviewsOfView:populatingSetWithLaidOutViews:]_block_invoke_0 (in DVTKit) 24 0x000000010021bae2 __84+[DVTAutoLayoutView _recursivelyLayoutSubviewsOfView:populatingSetWithLaidOutViews:]_block_invoke_0 (in DVTKit) 25 0x000000010021bae2 __84+[DVTAutoLayoutView _recursivelyLayoutSubviewsOfView:populatingSetWithLaidOutViews:]_block_invoke_0 (in DVTKit) 26 0x000000010021bae2 __84+[DVTAutoLayoutView _recursivelyLayoutSubviewsOfView:populatingSetWithLaidOutViews:]_block_invoke_0 (in DVTKit) 27 0x000000010021bae2 __84+[DVTAutoLayoutView _recursivelyLayoutSubviewsOfView:populatingSetWithLaidOutViews:]_block_invoke_0 (in DVTKit) 28 0x000000010021b8a7 +[DVTAutoLayoutView _recursivelyLayoutSubviewsOfView:populatingSetWithLaidOutViews:] (in DVTKit) 29 0x000000010022b878 -[DVTDelayedValidator doValidation:] (in DVTKit) 30 0x00007fff869e8441 __NSFirePerformWithOrder (in Foundation) 31 0x00007fff83be6b37 __CFRunLoopDoObservers (in CoreFoundation) 32 0x00007fff83bc2464 __CFRunLoopRun (in CoreFoundation) 33 0x00007fff83bc1dbf CFRunLoopRunSpecific (in CoreFoundation) 34 0x00007fff8194a7ee RunCurrentEventLoopInMode (in HIToolbox) 35 0x00007fff8194a551 ReceiveNextEventCommon (in HIToolbox) 36 0x00007fff8194a4ac BlockUntilNextEventMatchingListInMode (in HIToolbox) 37 0x00007fff830fceb2 _DPSNextEvent (in AppKit) 38 0x00007fff830fc801 -[NSApplication nextEventMatchingMask:untilDate:inMode:dequeue:] (in AppKit) 39 0x00007fff830c268f -[NSApplication run] (in AppKit) 40 0x00007fff830bb3b0 NSApplicationMain (in AppKit) 41 0x0000000100000eec 42 0x0000000000000002

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Think I found what caused the problem. I had some slumbering (unused) settings for source control that came along from previous XCode versions. I never used that source control feature anyway, but it made XCode 4 crash hard. Removing that (Organizer) and XCode 4 seems stable so far...