Comment 2 for bug 503300

After 12 hours, directory structure has been created alright online in U1. But only a few files transfered. The U1 icon shows a cross. I loaded Nautilus and click connect. The icon shows a cloud for a few minutes, then a '!'.
I see in Bug #502717 that files with invalid utf-8 name could be the cause of the crash in my former report, and that this has been reported in Bug #368626.
Fair enough; but how do I solve this. Is there a tool to help me spot those file and correct their names?