Solve the (no author) issue when migrating from Git to SVN

These days, I'm migrating Subversion repositories to Git.

I've followed this blog post that hasn't failed my so far.

However, today, this command
git svn clone --authors-file=users.txt --no-metadata --stdlayout repofailed because of a mysterious "(no author)".

The explanation is that Subversion seems allow a check-in by no one. Classically, the first check-in on Google Code for instance.

To solve it, just add
(no author) = Joe Smith <>
at the end of your user file. The person should obviously be a meaningful one (like the guy who has created the project on Google Code).