I've had to go back to an old version of compass: 0.12.7
Otherwise it fails on missing files. Before installing I removed the existing compass installation.
It correctly compiles my css file when I make a change to the scss file.
But when I ask sencha to make a production build with "sencha app build production" the css file in my project gets replaced with a different one.
The file probably gets overwritten at the following line during the build process:
[INF] executing compass using system installed ruby runtime
overwrite ../css/app.css
So it claims to use my installed version of compass.
What am I doing wrong here?