Latest WIP 2013-11-18 will not install on Mavericks

On installing (dragging the Rhino icon into the applications folder) the new Wenatchee 5.0 2013-11-18 on my MBP with Mavericks OS, I get the following error:

The operation can’t be completed because one or more required items can’t be found.
(Error code -43)

Any ideas?

Many thanks!

This is an error from the Finder. It sounds like you have a corrupted download file. Try downloading another copy.