This is taken from the translation files for ubuntu 10.10
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typo folders that already synchronized
https://bugs.launchpad.net/bugs/616604
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I downloaded the source for a look, and the string is now fixed. It now
reads: This folder cannot be synchronized because it contains one or
more folders that are already synchronized.
Thank you for taking the time to report this.
** Changed in: ubuntuone-client (Ubuntu)
Status: New = Fix
