straight.plugin = 1.4.0-post-1

[Benny-Beermann]

You need to pin version of straight.plugin to 1.4.0-post-1 in setup.py as it fails with newest version:

File "vdt/version/main.py", line 6, in
from vdt.version.repo import GitRepository
File "vdt/version/repo.py", line 3, in
from vdt.version.utils import load_plugin_by_name
File "vdt/version/utils.py", line 3, in
from straight.plugin import load
File "straight/plugin/init.py", line 1, in
from straight.plugin import loaders
File "straight/plugin/loaders.py", line 9, in
from straight.plugin.manager import PluginManager
ImportError: No module named manager

[specialunderwear]

I think your issue is caused by having an OLDER version?
this is the latest from pypi: https://pypi.python.org/pypi/straight.plugin 1.4.0-post-1