Just updated to 10.8.1 on my 2012 MBA. Someone had commented on OSXDaily that their purge command in terminal was now returning this error. [ERROR] <CPPathUtils.c:526> The device-file for this operating system, 'osx-12.1.0.xml', was not found. An attempt to revert to a previous revision of the OS device-file: 'osx-12.0.0.xml' has been made. Please file a Radar report with Apple, on the 'CoreProfile' component, version 'X'. I tested the command on my machine and it also returns this error. OS X 12.1.0? Anyone else having this issue?