This is not the same error message.
Also, you just installed a
very old version of calibre. Old versions will still have all the old bugs, so it's best to work with the latest version when troubleshooting. Install the latest version from
http://calibre-ebook.com/download and if you still get that problem, report back.
This also counts as doing the clean reinstall
with a newly downloaded installer.
Very important to do the reinstall with a freshly downloaded installer -- otherwise you may reinstall the error too
!