I'd have a guess that this is becuse of the version of Packer and Vagrant that are within the ubunutu repo's. Have a go at installing the most up-to-date version direct from the relavent hashicorp websites and have another go. I ran into a similar problem with another piece of software a couple of weeks ago.

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I'd also say that when using vagrant and something go wrongs, its always worth going into Virtualbox (or whatever provider you are using) and manually deleting the broken boxes.

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@br0kej thank you for your help.. i got further but it still fails.. here are the commands i used.. and the log messages of the failure.

Install Packer from main site

sudo apt install unzip
export VER="1.5.1"
wget https://releases.hashicorp.com/packer/${VER}/packer_${VER}_linux_amd64.zip
unzip packer_${VER}_linux_amd64.zip
sudo mv packer /usr/local/bin

Install Vagrant from Main Site

sudo wget https://releases.hashicorp.com/vagrant/2.2.7/vagrant_2.2.7_x86_64.deb
sudo dpkg -i vagrant_2.2.7_x86_64.deb -y
vagrant --version

Install Virtualbox 5.2

sudo apt-get update && sudo apt-get dist-upgrade && sudo apt-get autoremove
sudo apt-get -y install gcc make linux-headers-$(uname -r) dkms
wget -q https://www.virtualbox.org/download/oracle_vbox_2016.asc -O- | sudo apt-key add -
wget -q https://www.virtualbox.org/download/oracle_vbox.asc -O- | sudo apt-key add -
sudo sh -c 'echo "deb http://download.virtualbox.org/virtualbox/debian $(lsb_release -sc) contrib" >> /etc/apt/sources.list'

sudo apt-get update
sudo apt-get install virtualbox-5.2

curl -O http://download.virtualbox.org/virtualbox/5.2.0/Oracle_VM_VirtualBox_Extension_Pack-5.2.0-118431.vbox-extpack
sudo VBoxManage extpack install Oracle_VM_VirtualBox_Extension_Pack-5.2.0-118431.vbox-extpack

Install BoomBox

sudo apt install git
sudo git clone https://github.com/nbeede/BoomBox.git
cd BoomBox

./build.sh virtualbox

Output

The vagrant-reload plugin is required and not currently installed. This script will attempt to install it now.
Installing the 'vagrant-reload' plugin. This can take a few minutes...
Fetching: vagrant-reload-0.0.1.gem (100%)
Installed the plugin 'vagrant-reload (0.0.1)'!
Using Packer to build the sandbox Box. This can take 90-180 minutes depending on bandwidth and hardware.
virtualbox-iso: output will be in this color.

==> virtualbox-iso: Retrieving ISO
==> virtualbox-iso: Trying https://software-download.microsoft.com/download/pr/17134.1.180410-1804.rs4_release_CLIENTENTERPRISEEVAL_OEMRET_x64FRE_en-us.iso
==> virtualbox-iso: Trying https://software-download.microsoft.com/download/pr/17134.1.180410-1804.rs4_release_CLIENTENTERPRISEEVAL_OEMRET_x64FRE_en-us.iso?checksum=sha256%3A27e4feb9102f7f2b21ebdb364587902a70842fb550204019d1a14b120918e455
17134.1.180410-1804.rs4_release_CLIENTENTERPRISEEVAL_OEMRET_x64FRE_en-us.iso 3.97 GiB / 3.97 GiB [==================================================] 100.00% 1m16s
==> virtualbox-iso: https://software-download.microsoft.com/download/pr/17134.1.180410-1804.rs4_release_CLIENTENTERPRISEEVAL_OEMRET_x64FRE_en-us.iso?checksum=sha256%3A27e4feb9102f7f2b21ebdb364587902a70842fb550204019d1a14b120918e455 => /home/mike/BoomBox/Packer/packer_cache/452c532d5ce927ca17aca3862a196eebf63ccda4.iso
==> virtualbox-iso: Creating floppy disk...
virtualbox-iso: Copying files flatly from floppy_files
virtualbox-iso: Copying file: ./answer_files/10/Autounattend.xml
virtualbox-iso: Copying file: ./floppy/WindowsPowershell.lnk
virtualbox-iso: Copying file: ./floppy/PinTo10.exe
virtualbox-iso: Copying file: ./scripts/fixnetwork.ps1
virtualbox-iso: Copying file: ./scripts/MakeWindows10GreatAgain.ps1
virtualbox-iso: Copying file: ./scripts/MakeWindows10GreatAgain.reg
virtualbox-iso: Copying file: ./scripts/rearm-windows.ps1
virtualbox-iso: Copying file: ./scripts/disable-screensaver.ps1
virtualbox-iso: Copying file: ./scripts/disable-winrm.ps1
virtualbox-iso: Copying file: ./scripts/enable-winrm.ps1
virtualbox-iso: Copying file: ./scripts/microsoft-updates.bat
virtualbox-iso: Copying file: ./scripts/win-updates.ps1
virtualbox-iso: Copying file: ./scripts/oracle-cert.cer
virtualbox-iso: Done copying files from floppy_files
virtualbox-iso: Collecting paths from floppy_dirs
virtualbox-iso: Resulting paths from floppy_dirs : []
virtualbox-iso: Done copying paths from floppy_dirs
==> virtualbox-iso: Creating ephemeral key pair for SSH communicator...
==> virtualbox-iso: Created ephemeral SSH key pair for communicator
==> virtualbox-iso: Creating virtual machine...
==> virtualbox-iso: Creating hard drive...
==> virtualbox-iso: Attaching floppy disk...
==> virtualbox-iso: Creating forwarded port mapping for communicator (SSH, WinRM, etc) (host port 3335)
==> virtualbox-iso: Executing custom VBoxManage commands...
virtualbox-iso: Executing: modifyvm sandbox --memory 2048
virtualbox-iso: Executing: modifyvm sandbox --cpus 2
==> virtualbox-iso: Starting the virtual machine...
==> virtualbox-iso: Error starting VM: VBoxManage error: VBoxManage: error: The virtual machine 'sandbox' has terminated unexpectedly during startup with exit code 1 (0x1)
==> virtualbox-iso: VBoxManage: error: Details: code NS_ERROR_FAILURE (0x80004005), component MachineWrap, interface IMachine
==> virtualbox-iso: Deregistering and deleting VM...
==> virtualbox-iso: Deleting output directory...
Build 'virtualbox-iso' errored: Error starting VM: VBoxManage error: VBoxManage: error: The virtual machine 'sandbox' has terminated unexpectedly during startup with exit code 1 (0x1)
VBoxManage: error: Details: code NS_ERROR_FAILURE (0x80004005), component MachineWrap, interface IMachine

==> Some builds didn't complete successfully and had errors:
--> virtualbox-iso: Error starting VM: VBoxManage error: VBoxManage: error: The virtual machine 'sandbox' has terminated unexpectedly during startup with exit code 1 (0x1)
VBoxManage: error: Details: code NS_ERROR_FAILURE (0x80004005), component MachineWrap, interface IMachine

==> Builds finished but no artifacts were created.
mv: cannot stat '/home/mike/BoomBox/Packer/*.box': No such file or directory
Sandbox Box is missing from the Boxes directory. Quitting.
root@vmcuckoo2:/home/mike/BoomBox#

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