Data directory could not be found

I downloaded Zotero 2.0. But when I try to open it, I get this message "Error. The Zotero data directory could not be found."

What do I need to do?

Thank you,
Michael

This is an old discussion that has not been active in a long time. Instead of commenting here, you should start a new discussion. If you think the content of this discussion is still relevant, you can link to it from your new discussion.