Interface Builder crash with:Assertion Message: Interface Builder encountered an error communicating with the iPhone Simulator

Yesterday was working on a iPhone app with a tab bar when suddenly IB started to crash with the following reason:

Assertion Message: Interface Builder encountered an error communicating with the iPhone Simulator. If you choose to file a crash report or radar for this issue, please check Console.app for crash reports for "Interface Builder Cocoa Touch Tool" and include their content in your crash report.

I've tried to check the following:

• start with an empty standard Tab Bar project template. It crash
• uninstall XCode et all
• clean any old file left around
• reinstall it
• restore from an old backup XCode

Nothing of the above have worked :( Anyone of you could give me some suggestion on how to proceed? I'm on Snow Leopard and using XCode 3.2.5 and SDK 4.3 (no other SDK for iDevice is installed). BTW I can run with no problem Simulator...

Below the full trace of exception:

06/05/11 10.07.15 Interface Builder[1804] Assertion Failure: NO

06/05/11 10.07.15 Interface Builder[1804] File: /SourceCache/IBCocoaTouchPlugin/IBCocoaTouchPlugin-132/IBPlugin/Utilities/IBObjectMarshalling.m

06/05/11 10.07.15 Interface Builder[1804] Line: 351

06/05/11 10.07.15 Interface Builder[1804] Backtrace:

0 IBCocoaTouchPlugin 0x000000010e723907 IBMarshallObjectAndAskValueForKeyPathUsingResultMarshallerWithContext + 525

1 IBCocoaTouchPlugin 0x000000010e77911c IBIsManagedByTabBarController + 5744

2 IBCocoaTouchPlugin 0x000000010e778bc4 IBIsManagedByTabBarController + 4376

3 IBCocoaTouchPlugin 0x000000010e771e26 IBIsIBObjectURL + 25031

4 IBCocoaTouchPlugin 0x000000010e766682 IBConfigureToolbar + 25129

5 InterfaceBuilderKit 0x0000000100150151 -[IBEditor(DrawingMethods) setDecorationsNeedDisplayForObject:] + 370

6 InterfaceBuilderKit 0x000000010013fa84 -[IBEditor setShowingSelection:] + 175

7 InterfaceBuilderKit 0x000000010013f978 -[IBEditor didActivate] + 32

8 InterfaceBuilderKit 0x000000010014f847 -[IBViewEditor didActivate] + 43

9 InterfaceBuilderKit 0x00000001001ddb13 -[IBEditorManager openEditorForObject:closingSubEditors:makeKey:] + 1458

10 InterfaceBuilderKit 0x00000001001d2d4a -[IBDocument openEditorForObject:closingSubEditors:makeKeyAndOrderFront:] + 432

11 InterfaceBuilderKit 0x000000010013d605 -[IBDocument openEditorForObject:makeKeyAndOrderFront:] + 27

12 InterfaceBuilderKit 0x0000000100130315 -[IBDocument makeWindowControllers] + 498

13 AppKit 0x00007fff8708b4e6 -[NSDocumentController _finishOpeningDocument:andShowWindows:] + 54

14 AppKit 0x00007fff8708ff41 -[NSDocumentController openDocumentWithContentsOfURL:display:error:] + 807

15 InterfaceBuilderKit 0x00000001001732b6 -[IBDocumentController openDocumentWithContentsOfURL:display:error:] + 717

16 AppKit 0x00007fff8708f5f2 -[NSDocumentController _openDocumentsWithContentsOfURLs:display:presentErrors:] + 3457

17 AppKit 0x00007fff86f86b3d -[NSApplication(NSAppleEventHandling) _handleAEOpenDocumentsForURLs:] + 864

18 AppKit 0x00007fff86e5300d -[NSApplication(NSAppleEventHandling) _handleCoreEvent:withReplyEvent:] + 217

19 Foundation 0x00007fff82bbee42 -[NSAppleEventManager dispatchRawAppleEvent:withRawReply:handlerRefCon:] + 360

20 Foundation 0x00007fff82bbec72 _NSAppleEventManagerGenericHandler + 114

21 AE 0x00007fff82074323 aeDispatchAppleEvent(AEDesc const*, AEDesc*, unsigned int, unsigned char*) + 162

22 AE 0x00007fff8207421c dispatchEventAndSendReply(AEDesc const*, AEDesc*) + 32

23 AE 0x00007fff82074123 aeProcessAppleEvent + 210

24 HIToolbox 0x00007fff80486619 AEProcessAppleEvent + 48

25 AppKit 0x00007fff86d5804b _DPSNextEvent + 1205

26 AppKit 0x00007fff86d577a9 -[NSApplication nextEventMatchingMask:untilDate:inMode:dequeue:] + 155

27 Interface Builder 0x00000001000038e0

28 AppKit 0x00007fff86f92c47 -[NSApplication _realDoModalLoop:peek:] + 442

29 AppKit 0x00007fff86f907d5 -[NSApplication runModalForWindow:] + 129

30 InterfaceBuilderKit 0x00000001002742f1 -[IBDetailedAlert runModal] + 74

31 Interface Builder 0x0000000100006fbd

32 Interface Builder 0x0000000100007023

33 IBCocoaTouchPlugin 0x000000010e721ffb IBMessageForAssertingMarshallingFailureFromException + 538

34 Foundation 0x00007fff82ba832f __NSThreadPerformPerform + 219

35 CoreFoundation 0x00007fff8082c401 __CFRunLoopDoSources0 + 1361

36 CoreFoundation 0x00007fff8082a5f9 __CFRunLoopRun + 873

37 CoreFoundation 0x00007fff80829dbf CFRunLoopRunSpecific + 575

38 HIToolbox 0x00007fff804807ee RunCurrentEventLoopInMode + 333

39 HIToolbox 0x00007fff80480551 ReceiveNextEventCommon + 148

40 HIToolbox 0x00007fff804804ac BlockUntilNextEventMatchingListInMode + 59

41 AppKit 0x00007fff86d57e64 _DPSNextEvent + 718

42 AppKit 0x00007fff86d577a9 -[NSApplication nextEventMatchingMask:untilDate:inMode:dequeue:] + 155

43 Interface Builder 0x00000001000038e0

44 AppKit 0x00007fff86f92c47 -[NSApplication _realDoModalLoop:peek:] + 442

45 AppKit 0x00007fff86f907d5 -[NSApplication runModalForWindow:] + 129

46 InterfaceBuilderKit 0x00000001002742f1 -[IBDetailedAlert runModal] + 74

47 Interface Builder 0x0000000100006fbd开发者_开发百科

48 Interface Builder 0x0000000100007023

49 IBCocoaTouchPlugin 0x000000010e721ffb IBMessageForAssertingMarshallingFailureFromException + 538

50 Foundation 0x00007fff82ba832f __NSThreadPerformPerform + 219

51 CoreFoundation 0x00007fff8082c401 __CFRunLoopDoSources0 + 1361

52 CoreFoundation 0x00007fff8082a5f9 __CFRunLoopRun + 873

53 CoreFoundation 0x00007fff80829dbf CFRunLoopRunSpecific + 575

54 HIToolbox 0x00007fff804807ee RunCurrentEventLoopInMode + 333

55 HIToolbox 0x00007fff80480551 ReceiveNextEventCommon + 148

56 HIToolbox 0x00007fff804804ac BlockUntilNextEventMatchingListInMode + 59

57 AppKit 0x00007fff86d57e64 _DPSNextEvent + 718

58 AppKit 0x00007fff86d577a9 -[NSApplication nextEventMatchingMask:untilDate:inMode:dequeue:] + 155

59 Interface Builder 0x00000001000038e0

60 AppKit 0x00007fff86f92c47 -[NSApplication _realDoModalLoop:peek:] + 442

61 AppKit 0x00007fff86f907d5 -[NSApplication runModalForWindow:] + 129

62 InterfaceBuilderKit 0x00000001002742f1 -[IBDetailedAlert runModal] + 74

63 Interface Builder 0x0000000100006fbd

64 Interface Builder 0x0000000100007023

65 IBCocoaTouchPlugin 0x000000010e721ffb IBMessageForAssertingMarshallingFailureFromException + 538

66 Foundation 0x00007fff82ba832f __NSThreadPerformPerform + 219

67 CoreFoundation 0x00007fff8082c401 __CFRunLoopDoSources0 + 1361

68 CoreFoundation 0x00007fff8082a5f9 __CFRunLoopRun + 873

69 CoreFoundation 0x00007fff80829dbf CFRunLoopRunSpecific + 575

70 HIToolbox 0x00007fff804807ee RunCurrentEventLoopInMode + 333

71 HIToolbox 0x00007fff804805f3 ReceiveNextEventCommon + 310

72 HIToolbox 0x00007fff804804ac BlockUntilNextEventMatchingListInMode + 59

73 AppKit 0x00007fff86d57e64 _DPSNextEvent + 718

74 AppKit 0x00007fff86d577a9 -[NSApplication nextEventMatchingMask:untilDate:inMode:dequeue:] + 155

75 Interface Builder 0x00000001000038e0

76 AppKit 0x00007fff86f92c47 -[NSApplication _realDoModalLoop:peek:] + 442

77 AppKit 0x00007fff86f907d5 -[NSApplication runModalForWindow:] + 129

78 InterfaceBuilderKit 0x00000001002742f1 -[IBDetailedAlert runModal] + 74

79 Interface Builder 0x0000000100006fbd

80 Interface Builder 0x0000000100007023

81 IBCocoaTouchPlugin 0x000000010e721ffb IBMessageForAssertingMarshallingFailureFromException + 538

82 Foundation 0x00007fff82ba832f __NSThreadPerformPerform + 219

83 CoreFoundation 0x00007fff8082c401 __CFRunLoopDoSources0 + 1361

84 CoreFoundation 0x00007fff8082a5f9 __CFRunLoopRun + 873

85 CoreFoundation 0x00007fff80829dbf CFRunLoopRunSpecific + 575

86 HIToolbox 0x00007fff804807ee RunCurrentEventLoopInMode + 333

87 HIToolbox 0x00007fff80480551 ReceiveNextEventCommon + 148

88 HIToolbox 0x00007fff804804ac BlockUntilNextEventMatchingListInMode + 59

89 AppKit 0x00007fff86d57e64 _DPSNextEvent + 718

90 AppKit 0x00007fff86d577a9 -[NSApplication nextEventMatchingMask:untilDate:inMode:dequeue:] + 155

91 Interface Builder 0x00000001000038e0

92 AppKit 0x00007fff86f92c47 -[NSApplication _realDoModalLoop:peek:] + 442

93 AppKit 0x00007fff86f907d5 -[NSApplication runModalForWindow:] + 129

94 InterfaceBuilderKit 0x00000001002742f1 -[IBDetailedAlert runModal] + 74

95 Interface Builder 0x0000000100006fbd

96 Interface Builder 0x0000000100007023

97 IBCocoaTouchPlugin 0x000000010e721ffb IBMessageForAssertingMarshallingFailureFromException + 538

98 IBCocoaTouchPlugin 0x000000010e723907 IBMarshallObjectAndAskValueForKeyPathUsingResultMarshallerWithContext + 525

99 IBCocoaTouchPlugin 0x000000010e77911c IBIsManagedByTabBarController + 5744

100 IBCocoaTouchPlugin 0x000000010e778bc4 IBIsManagedByTabBarController + 4376

101 IBCocoaTouchPlugin 0x000000010e771e26 IBIsIBObjectURL + 25031

102 IBCocoaTouchPlugin 0x000000010e766682 IBConfigureToolbar + 25129

103 InterfaceBuilderKit 0x0000000100150151 -[IBEditor(DrawingMethods) setDecorationsNeedDisplayForObject:] + 370

104 InterfaceBuilderKit 0x000000010013fa84 -[IBEditor setShowingSelection:] + 175

105 InterfaceBuilderKit 0x000000010013f978 -[IBEditor didActivate] + 32

106 InterfaceBuilderKit 0x000000010014f847 -[IBViewEditor didActivate] + 43

107 InterfaceBuilderKit 0x00000001001ddb13 -[IBEditorManager openEditorForObject:closingSubEditors:makeKey:] + 1458

108 InterfaceBuilderKit 0x00000001001d2d4a -[IBDocument openEditorForObject:closingSubEditors:makeKeyAndOrderFront:] + 432

109 InterfaceBuilderKit 0x000000010013d605 -[IBDocument openEditorForObject:makeKeyAndOrderFront:] + 27

110 InterfaceBuilderKit 0x0000000100130315 -[IBDocument makeWindowControllers] + 498

111 AppKit 0x00007fff8708b4e6 -[NSDocumentController _finishOpeningDocument:andShowWindows:] + 54

112 AppKit 0x00007fff8708ff41 -[NSDocumentController openDocumentWithContentsOfURL:display:error:] + 807

113 InterfaceBuilderKit 0x00000001001732b6 -[IBDocumentController openDocumentWithContentsOfURL:display:error:] + 717

114 AppKit 0x00007fff8708f5f2 -[NSDocumentController _openDocumentsWithContentsOfURLs:display:presentErrors:] + 3457

115 AppKit 0x00007fff86f86b3d -[NSApplication(NSAppleEventHandling) _handleAEOpenDocumentsForURLs:] + 864

116 AppKit 0x00007fff86e5300d -[NSApplication(NSAppleEventHandling) _handleCoreEvent:withReplyEvent:] + 217

117 Foundation 0x00007fff82bbee42 -[NSAppleEventManager dispatchRawAppleEvent:withRawReply:handlerRefCon:] + 360

118 Foundation 0x00007fff82bbec72 _NSAppleEventManagerGenericHandler + 114

119 AE 0x00007fff82074323 aeDispatchAppleEvent(AEDesc const*, AEDesc*, unsigned int, unsigned char*) + 162

120 AE 0x00007fff8207421c dispatchEventAndSendReply(AEDesc const*, AEDesc*) + 32

121 AE 0x00007fff82074123 aeProcessAppleEvent + 210

122 HIToolbox 0x00007fff80486619 AEProcessAppleEvent + 48

123 AppKit 0x00007fff86d5804b _DPSNextEvent + 1205

124 AppKit 0x00007fff86d577a9 -[NSApplication nextEventMatchingMask:untilDate:inMode:dequeue:] + 155

125 Interface Builder 0x00000001000038e0

126 AppKit 0x00007fff86d1d48b -[NSApplication run] + 395

127 AppKit 0x00007fff86d161a8 NSApplicationMain + 364

128 Interface Builder 0x0000000100001c44

06/05/11 10.07.15 Interface Builder[1804] Message: Interface Builder encountered an error communicating with the iPhone Simulator. If you choose to file a crash report or radar for this issue, please check Console.app for crash reports for "Interface Builder Cocoa Touch Tool" and include their content in your crash report.

Failed to determine the value for itemFramesArray of IBUITabBar.

Exception name: NSObjectInaccessibleException Exception reason: NSDistantObject (0x10f401430) is invalid (no connection) Exception backtrace: (null) Exception info:(null)

From this discussion

Some similar cases reported were solved by cleaning out an older version of the SDK. That might work for you if you installed over any previous version of the SDK (even if it was only for OS/X). You'll want to uninstall as much as you can, new and old. Then rename the Developer folder so the next installation will make a new one. Your objective should be to prepare your Mac for a clean install, as if it had never hosted any development software in the past. After you've hosed out as much as you can, install the SDK again.

1. Uninstalled the previous SDK using sudo /Developer/Library/uninstall-devtools --mode=all from the terminal.
2. Changed the name of the Developer dir.
3. Changed my time zone to USA and my language to English from Hebrew.
4. Installed the 10.5.6 combo update from Apple's site.
5. Restarted
6. Reinstalled the SDK
7. ALL IS GOOD

This works for me: I had the same problem and I found that if I change my deployment target from iOS 4.0 to iOS 4.3 it just works fine for me and keeping Base SDK 5.0.