unreal .psk export permissions/traceback error

Using an unreal engine import-export addon, the import tool works fine, but trying to export to .psk - even after making no changes to the imported mesh - causes this error:

Traceback (most recent call last):
File “C:\Program Files\Blender Foundation\Blender\2.78\scripts\addons\io_export_unreal_psk_psa.py”, line 2636, in execute
export(filepath)
File “C:\Program Files\Blender Foundation\Blender\2.78\scripts\addons\io_export_unreal_psk_psa.py”, line 1793, in export
file = open(psk_filename, “wb”)
PermissionError: [Errno 13] Permission denied: ‘\ArmObject.psk’

location: <unknown location>:-1

Any help would be appreciated

where is the file? it could be in a protected folder.

… what file?

sorry, i meant the folder you are trying export too.

I can’t even export to my PC desktop, actually