[dnanian]

Alas, this is a bug that we've got fixed in 2.0.1, due soon. Basically, we encountered an I/O error while copying one of your files. We backed off our normal copy and tried an alternate -- copyfile -- but copyfile isn't in the referenced library under 10.3.9 (even though we built with compatibility, go figure).

Anyway, we've worked around the issue, and the update will be released within a day or so.

Sorry for the trouble in the meantime... let me know how your copy works out when you get the update, and if you have problems, please contact support. We can't help you if we don't know what the problems are!