Guard Slim fails with Ruby 2.0.x

[rennhak]

Guard-slim fails with > [#] NoMethodError: undefined method set_output_charset' for #Object:0xad3cffc`.

Seems this is maybe a issue due to newer libraries and deprecated methods.

17:33:34 - INFO - Reloading browser: src/views/about.slim
17:33:34 - DEBUG - {:command=>"reload", :path=>"/tmp/project/src/views/about.slim", :liveCSS=>true}
17:33:34 - DEBUG - Hook :run_on_changes_end executed for Guard::LiveReload
17:33:34 - DEBUG - Trying to run Guard::Slim#run_on_modifications with ["src/views/about.slim"]
17:33:34 - DEBUG - Trying to run Guard::Slim#run_on_changes with ["src/views/about.slim"]
17:33:34 - DEBUG - Hook :run_on_change_begin executed for Guard::Slim
17:33:34 - ERROR - Guard::Slim failed to achieve its <run_on_change>, exception was:
> [#] NoMethodError: undefined method `set_output_charset' for #<Object:0xad3cffc>
> [#] (__TEMPLATE__):4:in `block in singleton class'
> [#] (__TEMPLATE__):131071:in `instance_eval'
> [#] (__TEMPLATE__):131071:in `singleton class'
> [#] (__TEMPLATE__):131069:in `__tilt_91578390'
> [#] /home/br/.rvm/gems/ruby-2.0.0-rc2@project/gems/tilt-1.4.1/lib/tilt/template.rb:170:in `call'
> [#] /home/br/.rvm/gems/ruby-2.0.0-rc2@project/gems/tilt-1.4.1/lib/tilt/template.rb:170:in `evaluate'
> [#] /home/br/.rvm/gems/ruby-2.0.0-rc2@project/gems/tilt-1.4.1/lib/tilt/template.rb:103:in `render'
> [#] /home/br/.rvm/gems/ruby-2.0.0-rc2@project/gems/guard-slim-0.0.1/lib/guard/slim.rb:53:in `render'
> [#] /home/br/.rvm/gems/ruby-2.0.0-rc2@project/gems/guard-slim-0.0.1/lib/guard/slim.rb:29:in `block in run_on_change'
> [#] /home/br/.rvm/gems/ruby-2.0.0-rc2@project/gems/guard-slim-0.0.1/lib/guard/slim.rb:28:in `each'
> [#] /home/br/.rvm/gems/ruby-2.0.0-rc2@project/gems/guard-slim-0.0.1/lib/guard/slim.rb:28:in `run_on_change'
> [#] /home/br/.rvm/gems/ruby-2.0.0-rc2@project/gems/guard-1.8.2/lib/guard/runner.rb:99:in `block in run_supervised_task'
> [#] /home/br/.rvm/gems/ruby-2.0.0-rc2@project/gems/guard-1.8.2/lib/guard/runner.rb:97:in `catch'
> [#] /home/br/.rvm/gems/ruby-2.0.0-rc2@project/gems/guard-1.8.2/lib/guard/runner.rb:97:in `run_supervised_task'
> [#] /home/br/.rvm/gems/ruby-2.0.0-rc2@project/gems/guard-1.8.2/lib/guard/runner.rb:144:in `block in run_first_task_found'
> [#] /home/br/.rvm/gems/ruby-2.0.0-rc2@project/gems/guard-1.8.2/lib/guard/runner.rb:142:in `each'
> [#] /home/br/.rvm/gems/ruby-2.0.0-rc2@project/gems/guard-1.8.2/lib/guard/runner.rb:142:in `run_first_task_found'
> [#] /home/br/.rvm/gems/ruby-2.0.0-rc2@project/gems/guard-1.8.2/lib/guard/runner.rb:79:in `block in run_on_changes'
> [#] /home/br/.rvm/gems/ruby-2.0.0-rc2@project/gems/guard-1.8.2/lib/guard/runner.rb:175:in `block (3 levels) in scoped_guards'
> [#] /home/br/.rvm/gems/ruby-2.0.0-rc2@project/gems/guard-1.8.2/lib/guard/runner.rb:173:in `each'
> [#] /home/br/.rvm/gems/ruby-2.0.0-rc2@project/gems/guard-1.8.2/lib/guard/runner.rb:173:in `block (2 levels) in scoped_guards'
> [#] /home/br/.rvm/gems/ruby-2.0.0-rc2@project/gems/guard-1.8.2/lib/guard/runner.rb:172:in `catch'
> [#] /home/br/.rvm/gems/ruby-2.0.0-rc2@project/gems/guard-1.8.2/lib/guard/runner.rb:172:in `block in scoped_guards'
> [#] /home/br/.rvm/gems/ruby-2.0.0-rc2@project/gems/guard-1.8.2/lib/guard/runner.rb:170:in `each'
> [#] /home/br/.rvm/gems/ruby-2.0.0-rc2@project/gems/guard-1.8.2/lib/guard/runner.rb:170:in `scoped_guards'
> [#] /home/br/.rvm/gems/ruby-2.0.0-rc2@project/gems/guard-1.8.2/lib/guard/runner.rb:72:in `run_on_changes'
> [#] /home/br/.rvm/gems/ruby-2.0.0-rc2@project/gems/guard-1.8.2/lib/guard.rb:123:in `block (2 levels) in setup_listener'
> [#] /home/br/.rvm/gems/ruby-2.0.0-rc2@project/gems/guard-1.8.2/lib/guard.rb:387:in `block in within_preserved_state'
> [#] /home/br/.rvm/gems/ruby-2.0.0-rc2@project/gems/guard-1.8.2/lib/guard.rb:384:in `synchronize'
> [#] /home/br/.rvm/gems/ruby-2.0.0-rc2@project/gems/guard-1.8.2/lib/guard.rb:384:in `within_preserved_state'
> [#] /home/br/.rvm/gems/ruby-2.0.0-rc2@project/gems/guard-1.8.2/lib/guard.rb:122:in `block in setup_listener'
> [#] /home/br/.rvm/gems/ruby-2.0.0-rc2@project/gems/listen-1.0.3/lib/listen/listener.rb:234:in `call'
> [#] /home/br/.rvm/gems/ruby-2.0.0-rc2@project/gems/listen-1.0.3/lib/listen/listener.rb:234:in `on_change'
> [#] /home/br/.rvm/gems/ruby-2.0.0-rc2@project/gems/listen-1.0.3/lib/listen/listener.rb:266:in `block in initialize_adapter'
> [#] /home/br/.rvm/gems/ruby-2.0.0-rc2@project/gems/listen-1.0.3/lib/listen/adapters/polling.rb:48:in `call'
> [#] /home/br/.rvm/gems/ruby-2.0.0-rc2@project/gems/listen-1.0.3/lib/listen/adapters/polling.rb:48:in `poll_changed_directories'
> [#] /home/br/.rvm/gems/ruby-2.0.0-rc2@project/gems/listen-1.0.3/lib/listen/adapter.rb:284:in `block in start_poller'
17:33:34 - INFO - Guard::Slim has just been fired

[rennhak]

Might also be an issue with Tilt actually.
When running tilt manually on a slim file e.g. template = Tilt.new( filename.slim ) and executing template.render I get the same error.

[rennhak]

rtomayko/tilt#218
Possibly a tilt only issue.

[boof]

I'll try to have a look tomorrow if this is not only a tilt issue. Thanks for looking into this.