The Rails.root error is correct (to an extent) in this case. What's happening is that one of the many gems you're requiring isn't playing nicely with Rails 3. Rails 3 lazy-loads all of its internals, so it's possible for gems to force some parts of it to be loaded too early. This ends up meaning that Haml gets loaded before Rails.root gets set.
The reason for the stylesheet-not-updating error is that, since Rails.root isn't set, Sass doesn't know where to look for your stylesheets. In more recent releases like 3.0.6, Sass raises a more informative error rather than letting it silently fail. Haml does try to work around other gems' lack of Rails 3 compatibility, so if you can figure out which gem in particular is causing this I'll try to fix it. On Mon, May 31, 2010 at 1:22 AM, yannis_ <[email protected]>wrote: > Hi everyone and many thanks for your answers. > I'm with haml 3.0.2. > My Sass::Plugin.options were {:css_location=>"/public/ > stylesheets", :template_location=>"/public/stylesheets/ > sass", :always_update=>false, :cache_location=>"/tmp/sass- > cache", :always_check=>true, :full_exception=>true, :quiet=>true}. > I did set Sass::Plugin.options[:always_update] to true in > application.rb, but my stylesheets are still not updated. > I also tried to update my Haml/Sass gem to the last version (3.0.6) > but now get a > /Users/yannis/.bundle/ruby/1.8/gems/haml-3.0.3/lib/haml/util.rb:265:in > `rails_root': ERROR: Rails.root is nil! (RuntimeError) > when I restart my app. Reverting to 3.0.2 allows my app to work but > the stylesheets are not updated. How can I fix this Rails.root error? > > By the way, I have the following gem required for my app: > > * abstract (1.0.0) > * actionmailer (3.0.0.beta3) > * actionpack (3.0.0.beta3) > * activemodel (3.0.0.beta3) > * activerecord (3.0.0.beta3) > * activeresource (3.0.0.beta3) > * activesupport (3.0.0.beta3) > * arel (0.3.3) > * bio (1.4.0) > * builder (2.1.2) > * bundler (0.9.25) > * cancan (1.1.1) > * devise (1.1.rc1) > * erubis (2.6.5) > * haml (3.0.2) > * hpricot (0.8.2) > * i18n (0.3.7) > * mail (2.2.1) > * memcache-client (1.8.3) > * mime-types (1.16) > * mysql (2.8.1) > * net-ldap (0.1.1) > * paperclip (2.3.2 bdc48f) > * polyglot (0.3.1) > * rack (1.1.0) > * rack-mount (0.6.3) > * rack-test (0.5.4) > * rails (3.0.0.beta3) > * railties (3.0.0.beta3) > * rake (0.8.7) > * remotipart (0.1.0) > * text-format (1.0.0) > * text-hyphen (1.0.0) > * thor (0.13.6) > * treetop (1.4.8) > * tzinfo (0.3.22) > * warden (0.10.7) > > On May 28, 6:51 pm, Nathan Weizenbaum <[email protected]> wrote: > > What version of Haml/Sass are you using? Versions prior to 3.0.3 are > known > > to interact poorly with non-Rails3-ready plugins like will_paginate. > > > > On Fri, May 28, 2010 at 7:30 AM, yannis_ <[email protected] > >wrote: > > > > > > > > > Hi everyone, > > > I'm currently developing a small Rails3 app, using Haml and Sass. > > > In the development environment, after edition of the sass files, the > > > corresponding css files are not updated on page reload. > > > I've to force the update through the Sass --update command. > > > Am I missing some settings? Someone could help? > > > Thanks in advance, > > > Yannis > > > > > -- > > > You received this message because you are subscribed to the Google > Groups > > > "Haml" group. > > > To post to this group, send email to [email protected]. > > > To unsubscribe from this group, send email to > > > [email protected]<haml%[email protected]>< > haml%[email protected]<haml%[email protected]> > >. > > > For more options, visit this group at > > >http://groups.google.com/group/haml?hl=en. > > -- > You received this message because you are subscribed to the Google Groups > "Haml" group. > To post to this group, send email to [email protected]. > To unsubscribe from this group, send email to > [email protected] <haml%[email protected]>. > For more options, visit this group at > http://groups.google.com/group/haml?hl=en. > > -- You received this message because you are subscribed to the Google Groups "Haml" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/haml?hl=en.
