"Isn't precompiled" message while compiling

I have one JS library that references image assets in
/app/assets/images/subdir/.

When I execute “bundle exec rake assets:precompile
RAILS_ENV=production”, I receive an error that the image file in
/subdir/ isn’t precompiled … while I’m telling it to compile all
assets.

I’ve tried clearing out /public/assets/.

Any ideas?

Thanks,
Christopher Thielen

Nevermind, this is apparently a known issue. Setting the config’s
precompile to true will workaround it for now.