Unable to get folder, datastore, templates,vm hosts details

Hi,

I am unable to get the folder, datastore, templates,vm hosts details from my datacenter level.

I am just seeing datacenter name rest all are blank

Please help

get-datacenter | select Name,

get-vmhost | Select Name,

get-folder | Select Name,

Get-Datastore | Select Name,

get-template | Select Name | Export-Csv D:\inventory.csv -NoTypeInformation