Secure boot enabled: Cannot change acceptance level to community

Error:

When you change the esxi acceptance level:

Command: esxcli software acceptance set --level=CommunitySupported

                       Secure boot enabled: Cannot change acceptance level to community

Solution:

disable secure boot for the esxi .

  a) If it's a physical server, then you need to do this in UEFI. 

   b)For VMs, Power off VM, VM  edit settings -> VM Options tab (Boot Options) ->setting for Secure Boot. ->UnCheck