I played with Theme magic a lot last time and it is great tool, but I'm frustrated each time I do something wrong in less files (e.g I assign non-existing variable to another var in variables.less) and in Theme magic I see real mess. I mean non of css or less files are not working (I see site without styles) and then I must search and search for that little mistake for years almost
Can you add some error reporting or just throw error in which file is problem? Or there is some way to check what is wrong already?