Customization command failed with installation

[ghost]

I tried to install using the automation instructions, but I had to manually comment out the virtual server (aws) installation. After commenting out that in the vagrant file, I get this error. I'm installing on Ubuntu (14.04) with Virtual Box 5 installed.

---

A customization command failed:

["createhd", "--filename", "./tmp/pg_mnt.vdi", "--size", 524288]

The following error was experienced:

<Vagrant::Errors::VBoxManageError: There was an error while executing VBoxManage, a CLI used by Vagrant

for controlling VirtualBox. The command and stderr is shown below.

Command: ["createhd", "--filename", "./tmp/pg_mnt.vdi", "--size", "524288"]

Stderr: 0%...
Progress state: VBOX_E_FILE_ERROR
VBoxManage: error: Failed to create medium
VBoxManage: error: Could not create the medium storage unit '/home/jeremy/automation/./tmp/pg_mnt.vdi'.
VBoxManage: error: VDI: cannot create image '/home/jeremy/automation/./tmp/pg_mnt.vdi' (VERR_ALREADY_EXISTS)
VBoxManage: error: Details: code VBOX_E_FILE_ERROR (0x80bb0004), component MediumWrap, interface IMedium
VBoxManage: error: Context: "RTEXITCODE handleCreateMedium(HandlerArg*)" at line 449 of file VBoxManageDisk.cpp

Please fix this customization and try again.