phpStorm integration issue

[emmettculley]

Versions

scss-lint version: [1.0.18]
You can get this information from executing scss-lint --version at the command line.

OS: [Linux - Fedora 25]
IDEA product and version: [phpStorm 2016.3.3]

Description

I am seeing this event message every time I change the .scss source file:

10:54 AM SCSS Lint
Warning. Error encountered while reading cache ./.sass-cache/ede2a63361e5c56e94245b1ffa49f34a3ccebf75/cvc.scssc: undefined class/module Compass::

Steps to Reproduce

1. [alter SCSS source file]
2. [Wait for file watcher to update CSS file]

Expected behavior: [not to see event error message]

Actual behavior: [pop up to show message above]

Note that I've closed phpStorm and deleted all of the sass-cache files, but the error shows up again. Also note that the name of the cache directory is always the same (e.g., ede2a6336...), so it doesn't look like the cache is actually getting deleted. somehow...

Also I am using compass to compile the SCSS source, though I guess that is apparent :-) And that is all working correctly, as any change to the source shows up in the results CSS file. And in each case I see the above error pop up and that same entry in the event log.