Xcode 在界面生成器中意外退出

Question

我在 Xcode 中开始了一个新项目（Cocoa App OSX，Objective-C）。每次我尝试在 Interface Builder 中向 window 添加按钮（拖放）时，我都会收到以下错误并且 Xcode 退出。 "UNCAUGHT EXCEPTION (NSUnknownKeyException): [ valueForUndefinedKey:]: this class is not key value coding-compliant for the key springLoaded."

Xcode Yosemite 10.10.3

版本 6.3 (6D570)

有人经历过这种行为吗？

部分崩溃：

Crashed Thread:        0  Dispatch queue: com.apple.main-thread

Exception Type:        EXC_CRASH (SIGABRT)
Exception Codes:       0x0000000000000000, 0x0000000000000000

Application Specific Information:
ProductBuildVersion: 6D570
UNCAUGHT EXCEPTION (NSUnknownKeyException): [<NSButton 0x7fb46e18f090> valueForUndefinedKey:]: this class is not key value coding-compliant for the key springLoaded.
UserInfo: {
    NSTargetObjectUserInfoKey = "<NSButton: 0x7fb46e18f090>";
    NSUnknownUserInfoKey = springLoaded;
}
Hints: None
Backtrace:
  0  0x00007fff90a4c4f4 __exceptionPreprocess (in CoreFoundation)
  1  0x00000001050ee184 DVTFailureHintExceptionPreprocessor (in DVTFoundation)
  2  0x00007fff90d1976e objc_exception_throw (in libobjc.A.dylib)
  3  0x00007fff90a4c0a9 -[NSException raise] (in CoreFoundation)
  4  0x00007fff8dc77d25 -[NSObject(NSKeyValueCoding) valueForUndefinedKey:] (in Foundation)
  5  0x00007fff8db4cccb -[NSObject(NSKeyValueCoding) valueForKey:] (in Foundation)

更新： Xcode 现在以某种方式在按钮添加后幸存下来，但是当我尝试保存时，我收到此警报：不幸的是，这种情况发生在 Xcode 6.3.1

Answer 1

终于从apple devforums得到了答案

原因是我使用了OSX seed build OS X 10.10.3 (14D87h)。

This is new API related to Force Touch trackpads. It was added in OS X 10.10.3, but only in seed builds

Xcode 在界面生成器中意外退出

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