Question about vaadin plugin compiler themes

I’d like to know the inner workings of the plugin compiler themes, if that makes use of information stored on file pom.xml or ivy.xml or nothing, if in case of exception shows the exception or not. We have a problem. We are compiling with the plugin themes compiler a theme 7.1.9 with vaadin version 7.3.8, but we can not perform the compilation since it remains steady at 0%.

Best Regards

Maven plug-in or Eclipse plug-in? Internally they work a bit differently, but as far as I can recall, each should use the vaadin-sass-compiler version in your project dependencies and simply run the class com.vaadin.sass.SassCompiler in the theme directory with two parameters (styles.scss styles.css). You can also run the class by hand if you prefer.

What the plug-ins add to this is e.g. scanning for themes and optionally updating addons.scss based on the manifests of Vaadin add-ons on the classpath before theme compilation.