I've got this error any time I want to display an html or markdown render.
no such target scope:source.css#rule-list-body
I don't have any html and markdown plugins.
but you have the CSS3 package installed, right?
I didn't make the link between markdown, html and the css3 package.
It's apparently the problem.
I actually am having the same error. I don't see the "CSS3" package installed. Maybe I'm missing something else?
The author of CSS3 has added the necessary context, so this shouldn't be a problem in the future.
If you post the contents of your Sublime Text console from a fresh start, hopefully we can help you determine the issue.