当我尝试编辑项目中的任何文件时出现以下错误。
ASSERTION FAILURE in /SourceCache/IDEFoundation/IDEFoundation-943/Framework/Classes/Model/SourceControl/IDESourceControlTreeItem.m:771
Details: (((IDESourceControlWorkingTree *)self.sourceTree).origin) should not be nil.
Object: <IDESourceControlWorkingTreeItem: 0x401a17c00>
Method: -repositoryURLString
Thread: <NSThread: 0x40010a260>{name = (null), num = 1}
Hints: None
Backtrace:
0 0x00000001012fe366 -[IDEAssertionHandler handleFailureInMethod:object:fileName:lineNumber:messageFormat:arguments:] (in IDEKit)
1 0x00000001009751a4 _DVTAssertionFailureHandler (in DVTFoundation)
2 0x0000000100f4b455 -[IDESourceControlWorkingTreeItem repositoryURLString] (in IDEFoundation)
3 0x00007fff87b27434 _NSGetUsingKeyValueGetter (in Foundation)
4 0x00007fff87b273e9 -[NSObject(NSKeyValueCoding) valueForKey:] (in Foundation)
5 0x00007fff87b46e76 -[NSObject(NSKeyValueCoding) valueForKeyPath:] (in Foundation)
6 0x00007fff909a63f1 -[NSArrayController _multipleValueForKeyPath:atIndex:] (in AppKit)
7 0x00007fff909a54e5 -[NSArrayController _singleValueForKeyPath:] (in AppKit)
8 0x00007fff9070c09a -[_NSControllerObjectProxy valueForKeyPath:] (in AppKit)
9 0x00007fff87b46e39 -[NSObject(NSKeyValueCoding) valueForKeyPath:] (in Foundation)
10 0x00007fff87b46e39 -[NSObject(NSKeyValueCoding) valueForKeyPath:] (in Foundation)
11 0x00007fff9070bf46 -[NSBinder _valueForKeyPath:ofObject:mode:raisesForNotApplicableKeys:] (in AppKit)
12 0x00007fff9070bc30 -[NSBinder valueForBinding:resolveMarkersToPlaceholders:] (in AppKit)
13 0x00007fff9090fc92 -[NSValueBinder _referenceBindingValue] (in AppKit)
14 0x00007fff9090faa3 -[NSValueBinder _adjustObject:mode:observedController:observedKeyPath:context:editableState:adjustState:] (in AppKit)
15 0x00007fff9090f788 -[NSValueBinder _observeValueForKeyPath:ofObject:context:] (in AppKit)
16 0x00007fff909275af -[NSTextValueBinder _observeValueForKeyPath:ofObject:context:] (in AppKit)
17 0x00007fff906fdbdb -[NSObject(NSKeyValueBindingCreation) bind:toObject:withKeyPath:options:] (in AppKit)
18 0x0000000100b38c0d -[NSObject(DVTBindingUtilities) dvt_bind:toObject:withKeyPath:options:] (in DVTKit)
19 0x0000000101358251 -[IDEInspectorBasicStringProperty bindAndConfigure] (in IDEKit)
20 0x00000001013ff200 -[IDEInspectorPathFieldProperty bindAndConfigure] (in IDEKit)
21 0x000000010134e1c9 -[IDEInspectorProperty viewDidInstall] (in IDEKit)
22 0x00007fff8b3ee2e1 -[NSObject performSelector:] (in CoreFoundation)
23 0x00007fff8b3f2722 -[NSArray makeObjectsPerformSelector:] (in CoreFoundation)
24 0x0000000101407e8d -[IDEInspectorPropertyContainingView propertiesDidInstall] (in IDEKit)
25 0x0000000101407fcf -[IDEInspectorPropertyContainingView viewDidMoveToWindow] (in IDEKit)
26 0x00007fff907f9153 -[NSView _setWindow:] (in AppKit)
27 0x00007fff90725124 __NSViewRecursionHelper (in AppKit)
28 0x00007fff8b385314 CFArrayApplyFunction (in CoreFoundation)
29 0x00007fff907f90d7 -[NSView _setWindow:] (in AppKit)
30 0x00007fff90725124 __NSViewRecursionHelper (in AppKit)
31 0x00007fff8b385314 CFArrayApplyFunction (in CoreFoundation)
32 0x00007fff907f90d7 -[NSView _setWindow:] (in AppKit)
33 0x00007fff90725124 __NSViewRecursionHelper (in AppKit)
34 0x00007fff8b385314 CFArrayApplyFunction (in CoreFoundation)
35 0x00007fff907f90d7 -[NSView _setWindow:] (in AppKit)
36 0x00007fff90725124 __NSViewRecursionHelper (in AppKit)
37 0x00007fff8b385314 CFArrayApplyFunction (in CoreFoundation)
38 0x00007fff907f90d7 -[NSView _setWindow:] (in AppKit)
39 0x00007fff90725124 __NSViewRecursionHelper (in AppKit)
40 0x00007fff8b385314 CFArrayApplyFunction (in CoreFoundation)
41 0x00007fff907f90d7 -[NSView _setWindow:] (in AppKit)
42 0x00007fff907f73e2 -[NSView addSubview:] (in AppKit)
43 0x00000001046785b4 -[NSView(IBAppKitViewIntegration) ibSwizzledNSViewDebug_addSubview:] (in IDEInterfaceBuilderCocoaIntegration)
44 0x0000000100bb167d -[DVTDisclosureView layoutTopDown] (in DVTKit)
45 0x0000000100b291c3 __84+[DVTAutoLayoutView _recursivelyLayoutSubviewsOfView:populatingSetWithLaidOutViews:]_block_invoke_0 (in DVTKit)
46 0x0000000100b29272 __84+[DVTAutoLayoutView _recursivelyLayoutSubviewsOfView:populatingSetWithLaidOutViews:]_block_invoke_0 (in DVTKit)
47 0x0000000100b29272 __84+[DVTAutoLayoutView _recursivelyLayoutSubviewsOfView:populatingSetWithLaidOutViews:]_block_invoke_0 (in DVTKit)
48 0x0000000100b29272 __84+[DVTAutoLayoutView _recursivelyLayoutSubviewsOfView:populatingSetWithLaidOutViews:]_block_invoke_0 (in DVTKit)
49 0x0000000100b29272 __84+[DVTAutoLayoutView _recursivelyLayoutSubviewsOfView:populatingSetWithLaidOutViews:]_block_invoke_0 (in DVTKit)
50 0x0000000100b29272 __84+[DVTAutoLayoutView _recursivelyLayoutSubviewsOfView:populatingSetWithLaidOutViews:]_block_invoke_0 (in DVTKit)
51 0x0000000100b29272 __84+[DVTAutoLayoutView _recursivelyLayoutSubviewsOfView:populatingSetWithLaidOutViews:]_block_invoke_0 (in DVTKit)
52 0x0000000100b29272 __84+[DVTAutoLayoutView _recursivelyLayoutSubviewsOfView:populatingSetWithLaidOutViews:]_block_invoke_0 (in DVTKit)
53 0x0000000100b29272 __84+[DVTAutoLayoutView _recursivelyLayoutSubviewsOfView:populatingSetWithLaidOutViews:]_block_invoke_0 (in DVTKit)
54 0x0000000100b29272 __84+[DVTAutoLayoutView _recursivelyLayoutSubviewsOfView:populatingSetWithLaidOutViews:]_block_invoke_0 (in DVTKit)
55 0x0000000100b29272 __84+[DVTAutoLayoutView _recursivelyLayoutSubviewsOfView:populatingSetWithLaidOutViews:]_block_invoke_0 (in DVTKit)
56 0x0000000100b29037 +[DVTAutoLayoutView _recursivelyLayoutSubviewsOfView:populatingSetWithLaidOutViews:] (in DVTKit)
57 0x0000000100b28de1 -[DVTAutoLayoutView viewWillDraw] (in DVTKit)
58 0x00007fff90723c11 -[NSView viewWillDraw] (in AppKit)
59 0x00007fff90723c11 -[NSView viewWillDraw] (in AppKit)
60 0x00007fff90723c11 -[NSView viewWillDraw] (in AppKit)
61 0x00007fff90723c11 -[NSView viewWillDraw] (in AppKit)
62 0x00007fff90722952 -[NSView _sendViewWillDrawInRect:clipRootView:suppressRecursion:] (in AppKit)
63 0x00007fff907216c1 -[NSView displayIfNeeded] (in AppKit)
64 0x00007fff9072107d _handleWindowNeedsDisplayOrLayoutOrUpdateConstraints (in AppKit)
65 0x00007fff8b3b6f37 __CFRUNLOOP_IS_CALLING_OUT_TO_AN_OBSERVER_CALLBACK_FUNCTION__ (in CoreFoundation)
66 0x00007fff8b3b6e96 __CFRunLoopDoObservers (in CoreFoundation)
67 0x00007fff8b38c159 __CFRunLoopRun (in CoreFoundation)
68 0x00007fff8b38bae6 CFRunLoopRunSpecific (in CoreFoundation)
69 0x00007fff8f1dd3d3 RunCurrentEventLoopInMode (in HIToolbox)
70 0x00007fff8f1e463d ReceiveNextEventCommon (in HIToolbox)
71 0x00007fff8f1e44ca BlockUntilNextEventMatchingListInMode (in HIToolbox)
72 0x00007fff906e53f1 _DPSNextEvent (in AppKit)
73 0x00007fff906e4cf5 -[NSApplication nextEventMatchingMask:untilDate:inMode:dequeue:] (in AppKit)
74 0x00007fff906e162d -[NSApplication run] (in AppKit)
75 0x00007fff9096080c NSApplicationMain (in AppKit)
76 0x0000000100904eec (in Xcode)
我尝试清除this问题中提到的XCode缓存，但这不起作用。 我尝试重新安装xcode，但也失败了。
我在MAC OSX版本10.7.2（Lion）上使用Xcode版本4.2.1。
如果您对此有任何建议，请与我们联系。
感谢。
答案 0 :(得分：2)
现在已经解决了。这是由于XCode中缺少存储库。我不得不去组织者 - ＆gt;存储库并按左下角的+按钮添加存储库。之后我的项目编译得非常好。感谢霍斯特的努力。
答案 1 :(得分：0)
只读源/ plist /项目文件是我的Xcode遇到同样问题的根本原因。您可以只验证项目文件夹中的所有文件都是可写的。