When I build an application in Unity, I tend to get the error "IOException: Win32 IO returned 1224. Path: C:\.....MyProjectName\Temp\StagingArea\res\values\strings.xml".
This always occurs during the 'Converting java .class to dex-format' of the build, and immediately drops out of the build process when it happens. Weird thing is... if I keep attempting to build, it will eventually go through and deploy the app to my device (Nexus One).
Not a high priority error since it seems to fix itself if I persist long enough but it often takes 5-6 build attempts to be successful. Any ideas? :)