vdiskcreate.pl reports Can't call method "key" on an undefined value at ./vdiskcreate.pl line 112.

Dear All,

I want to add disk to VM, hence using the sample script provided. while executing it reports error can someone please help me what going wrong.

./vdiskcreate.pl --datacenter <data centername> --server <servername.company.com> --disksize 10000 --filename test.vmdk --pool private-cloud --vmname test --username <username>

Can't call method "key" on an undefined value at ./vdiskcreate.pl line 112.

Looks like line # 112

my $controller = VMUtils::find_scsi_controller_device(vm => $_);

      my $controllerKey = $controller->key;

Unable to get controller value hence reporting this error message is there any workaround for this.

Thanks.