invalid_operation.log

../../mitchellh/packer/builder/cloudstack/api.go:261: invalid operation: response.(ListVirtualMachinesResponse).Listvirtualmachinesresponse[0] (index of type struct { Count float64 "json:\"count\""; Virtualmachine []struct { Account string "json:\"account\""; Cpunumber float64 "json:\"cpunumber\""; Cpuspeed float64 "json:\"cpuspeed\""; Created string "json:\"created\""; Displayname string "json:\"displayname\""; Domain string "json:\"domain\""; Domainid string "json:\"domainid\""; Guestosid string "json:\"guestosid\""; Haenable bool "json:\"haenable\""; Hypervisor string "json:\"hypervisor\""; ID string "json:\"id\""; Keypair string "json:\"keypair\""; Memory float64 "json:\"memory\""; Name string "json:\"name\""; Nic []struct { Gateway string "json:\"gateway\""; ID string "json:\"id\""; Ipaddress string "json:\"ipaddress\""; Isdefault bool "json:\"isdefault\""; Macaddress string "json:\"macaddress\""; Netmask string "json:\"netmask\""; Networkid string "json:\"networkid\""; Traffictype string "json:\"traffictype\""; Type string "json:\"type\"" } "json:\"nic\""; Passwordenabled bool "json:\"passwordenabled\""; Rootdeviceid float64 "json:\"rootdeviceid\""; Rootdevicetype string "json:\"rootdevicetype\""; Securitygroup []interface {} "json:\"securitygroup\""; Serviceofferingid string "json:\"serviceofferingid\""; Serviceofferingname string "json:\"serviceofferingname\""; State string "json:\"state\""; Tags []interface {} "json:\"tags\""; Templatedisplaytext string "json:\"templatedisplaytext\""; Templateid string "json:\"templateid\""; Templatename string "json:\"templatename\""; Zoneid string "json:\"zoneid\""; Zonename string "json:\"zonename\"" } "json:\"virtualmachine\"" })