error while trying to build ujnder windows 11 [Deprecated configuration key: 'iso_checksum_type'.]

[mmuncan1980]

Checking if Packer is installed Checking if Vagrant is installed... Checking for pre-existing boxes... Checking for vagrant instances... Checking disk space... Checking if the vagrant-reload plugin is installed Prerequisite checks have finished. Running Packer for sandbox Using Packer to build the sandbox Box. This can take 90-180 minutes depending on bandwidth and hardware. Error: Failed to prepare build: "virtualbox-iso"

1 error occurred: * Deprecated configuration key: 'iso_checksum_type'. Please call packer fix against your template to update your template to be compatible with the current version of Packer. Visit https://www.packer.io/docs/commands/fix/ for more detail.

==> Wait completed after 0 seconds

==> Builds finished but no artifacts were created. Finished for sandbox. Got exit code: 1 packer_build_box : Something went wrong while attempting to build the sandbox box. In C:\Users\jamy\Downloads\BoomBox-master\build.ps1:279 Zeichen:3

• packer_build_box -Box 'sandbox'

• + CategoryInfo          : NotSpecified: (:) [Write-Error], WriteErrorException
  + FullyQualifiedErrorId : Microsoft.PowerShell.Commands.WriteErrorException,packer_build_box
  
  

PS C:\Users\jamy\Downloads\BoomBox-master\Packer>