Lion problem report and fix

[Shao Sean]

For those that are submitting Rev apps to the Mac App store, this  
might be useful to you (and could also be good idea to follow for non- 
Mac App store downloads as well)..



File-System Usage Requirements for the Mac App Store

To promote a more consistent user experience, applications submitted  
to the Mac App Store must follow certain rules about where they write  
files. Users can be confused when applications cause unexpected side  
effects on the file system (for example, storing databases in the  
user’s Documents folder, storing files in the user’s Library folder  
that are not recognizably associated with your application, storing  
user data in the user’s Library folder, and so on).

Your application must adhere to the following requirements:
• You may use Apple frameworks such as User Defaults, Calendar Store,  
and Address Book that implicitly write to files in specific locations,  
including locations is not allowed to access directly.
• Your application may write to temporary paths that you acquire using  
the appropriate Apple programming interfaces.
• Your application may write to the following directories:
	• ~/Library/Application Support/<app-identifier>
	• ~/Library/<app-identifier>
	• ~/Library/Caches/<app-identifier>
where <app-identifier> is your application's bundle identifier, its  
name, or your company’s name. This must exactly match what is in  
iTunes Connect for the application.

Always use Apple programming interfaces such as the  
URLsForDirectory:inDomains: function to locate these paths rather than  
hardcoding them. For more information, see File System Programming  
Guide.

• If your application manages libraries of pictures, music, or movies,  
the application may also write to the following directories:
	• ~/Pictures/<app-identifier>
	• ~/Music/<app-identifier>
	• ~/Movies/<app-identifier>

• If the user explicitly chooses to save data in an alternate location  
(using a Save As dialog), your application may write to the chosen  
location.