Compass watch and .sass-cache - ruby

Question

(I added the line wp-content/themes/klasik-child/mysass/.sass-cache in the file .gitignore from) when I execute "Compass watch" I have this error:
Errno::ENOENT on line ["247"] of C: No such file or directory'
-C:\Program Files (x86)\EasyPHP-DevServer-14.1VC9\data\localweb\github2015\myproject\wp-content\themes\klasik-child\mysass\.sass-cache\75fcaf1b4852ceb732871195e41567cc2a7d8997
C%058C:\Program Files (x86)\EasyPHP-DevServer-14.1VC9\data\localweb\github2015
run with --trace to see the full backtrace
Yet 75fcaf1b4852ceb732871195e41567cc2a7d8997 and github2015 folder exists.
I reset my .gitingnore file and I tried to delete the folder ".sass-cache"
but I still have the same problem.
I tried adding sass_options = {:cache_location => "path\to\tmp\sass-cache"} in config.rb but it gives errors "mkdir" invalid argument - path
thank !
++ Other info :
1- Command is run here : C:\Program Files (x86)\EasyPHP-DevServer-14.1VC9\data\localweb\github2015\myproject\wp-content\themes\klasik-child\mysass
from windows command
2- directory structure
mysass
|---css
|----principal.css
|---images
|---sass
|----partials
|-----_accueil.scss
|----pricipal.scss
config.rb
3- config.rb
require 'compass/import-once/activate'
http_path = "/"
css_dir = "css"
sass_dir = "sass"
images_dir = "images"
javascripts_dir = "javascripts"
# sass_options = {:cache_location => "path\to\tmp\sass-cache"}
relative_assets = true
line_comments = false

Answer 1

I found the solution here: Compass/SASS - not all files are compiled
Indeed,
The problem exists only if I change _accueil.scss (PARTIALS).
When I change pricipal.scss no compilation problem.
When I change _accueil.scss of type I errors 'No such file or directory ...sass-cache/..' –
If I comment the first line of config.rb # require 'compass/import-once/activate' it is no more problem of compilation : all my stylesheets they are compiled normally.

Answer 2

I had the same issue it turns out my .sass-cache path was too long, and the file was silently failing and not being outputted to that directory. It never mentioned anywhere that my path was too long, I was trying a suggestion found here:
https://github.com/Compass/compass/issues/1791
To fix it,
Add this line to to your config.rb
cache_path = 'C:\temp\sass'