XCode4报internal error

错误提示:

Xcode encountered an internal logic error. Choose “Continue” to
continue running Xcode in an inconsistent state.
Choose “Crash” to halt Xcode and file a bug with
Crash Reporter. Choosing “Crash” will result in the loss of all
unsaved data.

如果你遇到这样的问题, 不要怕, 我这个方案完美解决这个问题,
这个问题折腾了我一段时间了, 因为我自己的macPro
安装了xcode3.2.5和xcode4两个版本 没有问题,  但是公司这个iMac就出了这个问题,
刚开始以为重新安装系统就好了  我安装系统了, 问题依然出现,
然后发现 我使用CleanMyMac 把垃圾文件清理了, 然后把清理缓存:

Here’s how to clean your caches:

1. Choose Users>your user
name>Library>Caches.

2. From the Menu bar, choose Edit>Select All.

3. Drag all of the items to the Trash.

4. From the Macintosh HD, choose
Library>Caches.

5. Choose Edit>Select All, and drag the items to
the Trash. You’ll be required to type in an administrator’s
password.

6. Restart your Mac.

Read more: http://www.brighthub.com/computing/mac-platform/articles/2309.aspx#ixzz1KmR6Vm9x

如果这样还是不能解决问题,  那就使出杀手锏:

把这个文件删除  (~/Library/Preferences/com.apple.Xcode.plist)
, 然后打开XCode4 就没问题了!