undefined method `rails_root' for Haml::Util:Module

[Bradley Grzesiak]

Hey all.

I'm getting this error message when running rake on my rails app:

undefined method `rails_root' for Haml::Util:Module
/Library/Ruby/Gems/1.8/gems/haml-2.2.15/rails/../lib/haml/template.rb:64
/Library/Ruby/Site/1.8/rubygems/custom_require.rb:31:in `gem_original_require'
[...rest of stack trace...]

This happens on my dev machine and the staging and production servers, but not my coworker's dev machine. Any ideas?

Thanks!
:brad

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Bradley Grzesiak
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[Nathan Weizenbaum]

That's bizarre. rails_root should definitely be defined for 2.2.15... I suppose you could check in lib/haml/util.rb to see if it's really there. Maybe this is some sort of weird version conflict?

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[Bradley Grzesiak]

Yeah, I still don't know the solution. I downgraded to 2.2.8 (from the Changelog, it looks like 2.2.10 would have sufficed), removed 2.2.15, and the problem went away.

Note: this also happened whether I had "haml" or "haml and haml-edge" installed.

And indeed, I checked to ensure `def rails_root` was in util.rb. I also did a `sudo gem pristine haml` on 2.2.15 to no avail, despite being pretty sure no one had modified the gem.

And finally, the problem eventually cropped up on my coworker's machine once we started playing around with haml versions (I think he had a pre-2.2.10 version to start).

*shrug*

:brad

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Bradley Grzesiak
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[Nathan Weizenbaum]

Another possibility is that there's a problem with load order - that Haml::Util isn't fully loaded, somehow, by the time this happens. Could I see a full stack trace for the error?