I have taken two screenshots .they may show where the error occurs.
error.tar.gz (application/x-gzip), 56.42 KB, created by lnie on 2012-08-16 09:29:33 UTC
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Creator: lnie
Created: 2012-08-16 09:29:33 UTC
Size: 56.42 KB

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Attachments on bug 848714: 604843