Error to add vCenter host

Hi all.
I try add vCenter host “onevcenter hosts --vcenter --vuser --vpass XXXXXXXX” but I get an error.:
Exploring vCenter resources… Error: protected method info_all' called for #<OpenNebula::ClusterPool:0x00000003c4aa38>/ ["/usr/lib/one/ruby/vcenter_driver/vi_helper.rb:38:inone_pool’", “/usr/lib/one/ruby/vcenter_driver/importer.rb:132:in import_clusters'", "/usr/bin/onevcenter:113:inblock (2 levels) in '”, “/usr/lib/one/ruby/cli/command_parser.rb:449:in call'", "/usr/lib/one/ruby/cli/command_parser.rb:449:inrun’”, “/usr/lib/one/ruby/cli/command_parser.rb:76:in initialize'", "/usr/bin/onevcenter:57:innew’”, “/usr/bin/onevcenter:57:in `’”]
What is it mean? How to fix?
My OpenNebula 5.4.1, VMWare vCenter 6.0 (2 ESXi host in cluster with RDS)

This issue is most likely solved in the latest hotfix, please install OpenNebula from source ( and try again.

Thanks a lot. I will try.