converter error "Host key can't be retrieved.

Hi all,

I'm having an issue using the standalone converter to p2v a linux (CentOS) box.  It gets to 1% then fails with the following error:

FAILED: A general system error occurred:

Network error. Host 10.0.2.19 key can't be retrieved. (return code 2)

(Note: 10.0.2.19 is the IP of the CentOS box.)

Running 5.01 build 1087880 of the converter (latest as of today), and ESXi 5.1.

Anyone ever come across this error before or know what it means?  Google isn't very helpful...

Thanks in advance,

Colin