Comment 2 for bug 592977

Thank you for taking the time to report this bug and helping to make Ubuntu better. This particular bug has already been reported and is a duplicate of bug 576263 , so it is being marked as such. Please look at the other bug report to see if there is any missing information that you can provide, or to see if there is a workaround ( ii have posted this below for your convenience) for the bug. Additionally, any further discussion regarding the bug should occur in the other report. Feel free to continue to report any other bugs you may find.

Workaround
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   1. Quit the Ubuntu One client (open a terminal window & run "u1sdtool -q; killall ubuntuone-login" without the quotes)
   2. Open Applications->Accessories->Passwords and Encryption Keys
   3. Click on the plus symbol next to "Passwords: login" to expand the list
   4. Right-click on the Ubuntu One token and select "Delete"
   5. Go to https://one.ubuntu.com/account/machines/
   6. Click on the checkbox next to your computer
   7. Click the "Remove selected computers" button
   8. Open System --> Preferences -->Ubuntu One
   9. a web page should open, prompting you to add your computer to your Ubuntu One account
  10. Add your computer

thank you,
duanedesign