尝试设置地图路由时,xcode意外退出

这是Exception类型:

Process:         Xcode [1409]
Path:            /Applications/Xcode.app/Contents/MacOS/Xcode
Identifier:      com.apple.dt.Xcode
Version:         5.1.1 (5085)
Build Info:      IDEFrameworks-5085000000000000~10
App Item ID:     497799835
App External ID: 520942841
Code Type:       X86-64 (Native)
Parent Process:  launchd [177]
Responsible:     Xcode [1409]
User ID:         501

Date/Time:       2014-09-20 22:41:27.990 +0300
OS Version:      Mac OS X 10.9.4 (13E28)
Report Version:  11
Anonymous UUID:  9C747CAE-C350-EB4A-8B8B-155596B575CC


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

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

Application Specific Information:
ProductBuildVersion: 5B1008
UNCAUGHT EXCEPTION (NSInternalInconsistencyException): *** -[NSKeyValueSlowMutableSet addObject:]: value for key enabledRoutingTypes of object 0x7fd447d4d9d0 is nil
UserInfo: (null)
Hints: None

当我试图进入项目导航器然后进入"功能"选项卡滚动到地图部分(开关打开)然后尝试选择任何路由选择时,就会发生这种情况.我试图打开新项目,它又一次发生了.