XCode在发布时反复挂起

Question

我是OSX新手并在Virtual Box VM中运行Mountain Lion。 Xcode运行正常，我设法创建一个简单的Hello World应用程序。我重新启动了虚拟机，当我尝试重新打开我的项目时，Xcode崩溃了。我当时没有想到这一点，但每次我重新启动Xcode，它都在这个阶段冻结了：

CPU使用率达到95％，我不得不强制退出Xcode。

以下是Xcode_Timestamp.hang：

Date/Time:       2013-06-07 12:02:37 +0100
OS Version:      10.8 (Build 12A269)
Architecture:    x86_64
Report Version:  11

Command:         Xcode
Path:            /Applications/Xcode.app/Contents/MacOS/Xcode
Version:         4.6.2 (2067.2)
Build Version:   2
Project Name:    IDEApplication
Source Version:  2067002000000000
App Item ID:     497799835
App External ID: 15055625
Parent:          launchd [121]

PID:             353
Event:           hang
Duration:        0.88s
Steps:           9 (100ms sampling interval)

Hardware model:  MacPro3,1
Active cpus:     1
Free pages:      433637 pages (+16260)
Pageins:         1 pages
Pageouts:        0 pages


Process:         Xcode [353]
Path:            /Applications/Xcode.app/Contents/MacOS/Xcode
Architecture:    x86_64
Parent:          launchd [121]
UID:             501
Task size:       175291 pages (-18383)
CPU Time:        0.456s

在system.log中：

Jun  7 12:16:07 imorelaptop.hkc2k3.local Dock[136]: no information back from LS about running process
Jun  7 12:16:17 imorelaptop.hkc2k3.local WindowServer[86]: CGXDisableUpdate: UI updates were forcibly disabled by application "Xcode" for over 1.00 seconds. Server has re-enabled them.
Jun  7 12:16:31 imorelaptop.hkc2k3.local WindowServer[86]: disable_update_likely_unbalanced: UI updates still disabled by application "Xcode" after 15.00 seconds (server forcibly re-enabled them after 1.00 seconds). Likely an unbalanced disableUpdate call.
Jun  7 12:16:39 imorelaptop.hkc2k3.local WindowServer[86]: reenable_update_for_connection: UI updates were finally reenabled by application "Xcode" after 23.15 seconds (server forcibly re-enabled them after 1.00 seconds)
Jun  7 12:17:11 imorelaptop.hkc2k3.local sandboxd[461] ([38]): mds(38) deny mach-lookup �#�:�*��;�j�Z��=�����~�הz�Q�F���N�m�mR���>wD+֍�T#���)�`�ثw�T78۲��r���-�j�&��ň����P�6EAM-�0b
    ���Q��Xh�R��S�^��
Jun  7 12:17:11 imorelaptop kernel[0]: Sandbox: sandboxd(461) deny mach-lookup com.apple.coresymbolicationd
Jun  7 12:17:11 imorelaptop.hkc2k3.local sandboxd[461] ([38]): mds(38) deny mach-lookup �#�:�*��;�j�Z��=�����~�הz�Q�F���N�m�mR���>wD+֍�T#���)�`�ثw�T78۲��r���-�j�&��ň����P�6EAM-�0b
    ���Q��Xh�R��S�^��
Jun  7 12:19:51 imorelaptop.hkc2k3.local WebProcess[306]: CoreAnimation: unhandled combiner function: 11

我尝试重新启动我的VM，将RAM增加到4GB（从2GB）并重新安装Xcode但仍然遇到同样的问题。我也尝试在Xcode中打开特定的应用程序和文件，但应用程序仍然在同一点上挂起。