本文介绍了Mac 10.9 Mavericks 中的 Xcode 启动应用程序错误的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我使用 MacOSX 10.9.3 Maverick，xcode 5.1.1.我尝试在模拟器中启动应用程序，但发生黑屏并关闭 xcode.这是通知:
I using MacOSX 10.9.3 Maverick, xcode 5.1.1 . I try to launch app in simulator, but happen black screen and close xcode. This is notice:
Process: Xcode [625]
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 [151]
Responsible: Xcode [625]
User ID: 501
Date/Time: 2014-05-19 09:43:47.454 +0700
OS Version: Mac OS X 10.9.3 (13D65)
Report Version: 11
Anonymous UUID: 9C94CD1D-3B3C-6A87-75C0-B9FADF7F71B3
Crashed Thread: 7 Dispatch queue: DBGLLDBLauncher Serial Queue
Exception Type: EXC_CRASH (SIGABRT)
Exception Codes: 0x0000000000000000, 0x0000000000000000
Application Specific Information:
ProductBuildVersion: 5B1008
Assertion failed: (out_port != 0), function StartDebugserverProcess, file /SourceCache/lldb/lldb-310.2.37/source/Plugins/Process/gdb-remote/GDBRemoteCommunication.cpp, line 720.
Thread 0:: Dispatch queue: com.apple.main-thread
0 libsystem_kernel.dylib 0x00007fff885c9a1a mach_msg_trap + 10
1 libsystem_kernel.dylib 0x00007fff885c8d18 mach_msg + 64
2 com.apple.CoreFoundation 0x00007fff86bdafc5 __CFRunLoopServiceMachPort + 181
3 com.apple.CoreFoundation 0x00007fff86bda5e9 __CFRunLoopRun + 1161
4 com.apple.CoreFoundation 0x00007fff86bd9f25 CFRunLoopRunSpecific + 309
5 com.apple.HIToolbox 0x00007fff8b588a0d RunCurrentEventLoopInMode + 226
...
如何解决?
推荐答案
问题可能是由另一个删除了主机文件的应用程序引起的，例如 MAMP PRO重新创建主机文件
Issue may be caused by another application which removed hosts file, for example MAMP PRORecreate hosts file
##
# Host Database
#
# localhost is used to configure the loopback interface
# when the system is booting. Do not change this entry.
##
127.0.0.1 localhost
255.255.255.255 broadcasthost
::1 localhost
fe80::1%lo0 localhost
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