Just upgraded our test vm from ESX 2.5.3 to 3.0
Getting the error below when trying to add a host:
An invalid type 'vim.vm.summary.guestsummary' was received by the server
I receive this after entering the host name (or IP address) and entering the username root and the corresponding pw.
You've posted to the wrong forum - this forum is for the VMware Server Beta product. You might try posting in the ESX forum.