Apple has issued an update of Migration Assistant, ahead of the release of OS X Lion.
Apple said,
This update addresses an issue with the Migration Assistant application in Mac OS X Snow Leopard that prevents transfer of your personal data, settings, and compatible applications from a Mac running Mac OS X Snow Leopard to a new Mac running Mac OS X Lion.
Migration Assistant Update for Mac OS X Snow Leopard can be downloaded from this page or from Apple's Software Update.
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