UPDATE: I fixed it! I had a directory
assets/ with some non-site-related assets in it--layered image files, etc.--and had therefore put "assets" in my
.slugignore. Apparently, Heroku was applying this to
app/assets/ as well.
I'm having a bear of a time upgrading this site from rails 3.0 to 3.2. The bulk of the engine work was done upstream (thanks upstream, upstream rules) but I can't get
application.css to compile on Heroku. It's working locally, but on production no matter what I do, I get exceptions on pageload:
A ActionView::Template::Error occurred in posts#index: application.css isn't precompiled