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POSpriting error/problems in Compass 0.12
 

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  1. POSpriting error/problems in Compass 0.12
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    <p>Something has caused a local failure. Rolling back to older versions of the codebase still return the same failure. Deleting the entire repo, re-cloning it, uninstalling compass, reinstalling, etc. still yields the same error. </p> <pre><code>mycomputer:myproject(master) me$ compass watch --trace &gt;&gt;&gt; Change detected at 14:13:14 to: app/app.sass remove assets/images/sprites-sf0f45583b2.png NoMethodError on line ["24"] of /Users/me/.rvm/gems/ruby-1.9.3-p194/gems/chunky_png-1.2.5/lib/chunky_png/chunk.rb: undefined method `unpack' for nil:NilClass /Users/me/.rvm/gems/ruby-1.9.3-p194/gems/chunky_png-1.2.5/lib/chunky_png/datastream.rb:78:in `from_io' /Users/me/.rvm/gems/ruby-1.9.3-p194/gems/chunky_png-1.2.5/lib/chunky_png/datastream.rb:66:in `block in from_file' /Users/me/.rvm/gems/ruby-1.9.3-p194/gems/chunky_png-1.2.5/lib/chunky_png/datastream.rb:66:in `open' /Users/me/.rvm/gems/ruby-1.9.3-p194/gems/chunky_png-1.2.5/lib/chunky_png/datastream.rb:66:in `from_file' /Users/me/.rvm/gems/ruby-1.9.3-p194/gems/chunky_png-1.2.5/lib/chunky_png/canvas/png_decoding.rb:53:in `from_file' /Users/me/.rvm/gems/ruby-1.9.3-p194/gems/compass-0.12.2/lib/compass/sass_extensions/sprites/engines/chunky_png_engine.rb:15:in `block in construct_sprite' /Users/me/.rvm/gems/ruby-1.9.3-p194/gems/compass-0.12.2/lib/compass/sass_extensions/sprites/engines/chunky_png_engine.rb:14:in `each' /Users/me/.rvm/gems/ruby-1.9.3-p194/gems/compass-0.12.2/lib/compass/sass_extensions/sprites/engines/chunky_png_engine.rb:14:in `construct_sprite' /Users/me/.rvm/gems/ruby-1.9.3-p194/gems/compass-0.12.2/lib/compass/sass_extensions/sprites/sprite_methods.rb:62:in `generate' /Users/me/.rvm/gems/ruby-1.9.3-p194/gems/compass-0.12.2/lib/compass/sass_extensions/functions/sprites.rb:122:in `sprite_url' /Users/me/.rvm/gems/ruby-1.9.3-p194/gems/compass-0.12.2/lib/compass/sass_extensions/sprites/sprite_map.rb:72:in `method_missing' /Users/me/.rvm/gems/ruby-1.9.3-p194/gems/compass-0.12.2/lib/compass/sass_extensions/sprites/sprite_map.rb:63:in `to_s' /Users/me/.rvm/gems/ruby-1.9.3-p194/gems/sass-3.2.0.alpha.237/lib/sass/script/list.rb:44:in `block in to_s' /Users/me/.rvm/gems/ruby-1.9.3-p194/gems/sass-3.2.0.alpha.237/lib/sass/script/list.rb:44:in `map' /Users/me/.rvm/gems/ruby-1.9.3-p194/gems/sass-3.2.0.alpha.237/lib/sass/script/list.rb:44:in `to_s' /Users/me/.rvm/gems/ruby-1.9.3-p194/gems/sass-3.2.0.alpha.237/lib/sass/tree/visitors/perform.rb:238:in `visit_prop' /Users/me/.rvm/gems/ruby-1.9.3-p194/gems/sass-3.2.0.alpha.237/lib/sass/tree/visitors/base.rb:37:in `visit' /Users/me/.rvm/gems/ruby-1.9.3-p194/gems/sass-3.2.0.alpha.237/lib/sass/tree/visitors/perform.rb:20:in `visit' /Users/me/.rvm/gems/ruby-1.9.3-p194/gems/sass-3.2.0.alpha.237/lib/sass/tree/visitors/base.rb:53:in `block in visit_children' /Users/me/.rvm/gems/ruby-1.9.3-p194/gems/sass-3.2.0.alpha.237/lib/sass/tree/visitors/base.rb:53:in `map' /Users/me/.rvm/gems/ruby-1.9.3-p194/gems/sass-3.2.0.alpha.237/lib/sass/tree/visitors/base.rb:53:in `visit_children' /Users/me/.rvm/gems/ruby-1.9.3-p194/gems/sass-3.2.0.alpha.237/lib/sass/tree/visitors/perform.rb:29:in `block in visit_children' /Users/me/.rvm/gems/ruby-1.9.3-p194/gems/sass-3.2.0.alpha.237/lib/sass/tree/visitors/perform.rb:41:in `with_environment' /Users/me/.rvm/gems/ruby-1.9.3-p194/gems/sass-3.2.0.alpha.237/lib/sass/tree/visitors/perform.rb:28:in `visit_children' /Users/me/.rvm/gems/ruby-1.9.3-p194/gems/sass-3.2.0.alpha.237/lib/sass/tree/visitors/base.rb:37:in `block in visit' /Users/me/.rvm/gems/ruby-1.9.3-p194/gems/sass-3.2.0.alpha.237/lib/sass/tree/visitors/perform.rb:259:in `visit_rule' /Users/me/.rvm/gems/ruby-1.9.3-p194/gems/sass-3.2.0.alpha.237/lib/sass/tree/visitors/base.rb:37:in `visit' /Users/me/.rvm/gems/ruby-1.9.3-p194/gems/sass-3.2.0.alpha.237/lib/sass/tree/visitors/perform.rb:20:in `visit' /Users/me/.rvm/gems/ruby-1.9.3-p194/gems/sass-3.2.0.alpha.237/lib/sass/tree/visitors/base.rb:53:in `block in visit_children' /Users/me/.rvm/gems/ruby-1.9.3-p194/gems/sass-3.2.0.alpha.237/lib/sass/tree/visitors/base.rb:53:in `map' /Users/me/.rvm/gems/ruby-1.9.3-p194/gems/sass-3.2.0.alpha.237/lib/sass/tree/visitors/base.rb:53:in `visit_children' /Users/me/.rvm/gems/ruby-1.9.3-p194/gems/sass-3.2.0.alpha.237/lib/sass/tree/visitors/perform.rb:29:in `block in visit_children' /Users/me/.rvm/gems/ruby-1.9.3-p194/gems/sass-3.2.0.alpha.237/lib/sass/tree/visitors/perform.rb:41:in `with_environment' /Users/me/.rvm/gems/ruby-1.9.3-p194/gems/sass-3.2.0.alpha.237/lib/sass/tree/visitors/perform.rb:28:in `visit_children' /Users/me/.rvm/gems/ruby-1.9.3-p194/gems/sass-3.2.0.alpha.237/lib/sass/tree/visitors/base.rb:37:in `block in visit' /Users/me/.rvm/gems/ruby-1.9.3-p194/gems/sass-3.2.0.alpha.237/lib/sass/tree/visitors/perform.rb:125:in `visit_if' /Users/me/.rvm/gems/ruby-1.9.3-p194/gems/sass-3.2.0.alpha.237/lib/sass/tree/visitors/base.rb:37:in `visit' /Users/me/.rvm/gems/ruby-1.9.3-p194/gems/sass-3.2.0.alpha.237/lib/sass/tree/visitors/perform.rb:20:in `visit' /Users/me/.rvm/gems/ruby-1.9.3-p194/gems/sass-3.2.0.alpha.237/lib/sass/tree/visitors/perform.rb:128:in `visit_if' /Users/me/.rvm/gems/ruby-1.9.3-p194/gems/sass-3.2.0.alpha.237/lib/sass/tree/visitors/base.rb:37:in `visit' /Users/me/.rvm/gems/ruby-1.9.3-p194/gems/sass-3.2.0.alpha.237/lib/sass/tree/visitors/perform.rb:20:in `visit' /Users/me/.rvm/gems/ruby-1.9.3-p194/gems/sass-3.2.0.alpha.237/lib/sass/tree/visitors/perform.rb:146:in `block in visit_import' /Users/me/.rvm/gems/ruby-1.9.3-p194/gems/sass-3.2.0.alpha.237/lib/sass/tree/visitors/perform.rb:146:in `map' /Users/me/.rvm/gems/ruby-1.9.3-p194/gems/sass-3.2.0.alpha.237/lib/sass/tree/visitors/perform.rb:146:in `visit_import' /Users/me/.rvm/gems/ruby-1.9.3-p194/gems/sass-3.2.0.alpha.237/lib/sass/tree/visitors/base.rb:37:in `visit' /Users/me/.rvm/gems/ruby-1.9.3-p194/gems/sass-3.2.0.alpha.237/lib/sass/tree/visitors/perform.rb:20:in `visit' /Users/me/.rvm/gems/ruby-1.9.3-p194/gems/sass-3.2.0.alpha.237/lib/sass/tree/visitors/perform.rb:146:in `block in visit_import' /Users/me/.rvm/gems/ruby-1.9.3-p194/gems/sass-3.2.0.alpha.237/lib/sass/tree/visitors/perform.rb:146:in `map' /Users/me/.rvm/gems/ruby-1.9.3-p194/gems/sass-3.2.0.alpha.237/lib/sass/tree/visitors/perform.rb:146:in `visit_import' /Users/me/.rvm/gems/ruby-1.9.3-p194/gems/sass-3.2.0.alpha.237/lib/sass/tree/visitors/base.rb:37:in `visit' /Users/me/.rvm/gems/ruby-1.9.3-p194/gems/sass-3.2.0.alpha.237/lib/sass/tree/visitors/perform.rb:20:in `visit' /Users/me/.rvm/gems/ruby-1.9.3-p194/gems/sass-3.2.0.alpha.237/lib/sass/tree/visitors/perform.rb:146:in `block in visit_import' /Users/me/.rvm/gems/ruby-1.9.3-p194/gems/sass-3.2.0.alpha.237/lib/sass/tree/visitors/perform.rb:146:in `map' /Users/me/.rvm/gems/ruby-1.9.3-p194/gems/sass-3.2.0.alpha.237/lib/sass/tree/visitors/perform.rb:146:in `visit_import' /Users/me/.rvm/gems/ruby-1.9.3-p194/gems/sass-3.2.0.alpha.237/lib/sass/tree/visitors/base.rb:37:in `visit' /Users/me/.rvm/gems/ruby-1.9.3-p194/gems/sass-3.2.0.alpha.237/lib/sass/tree/visitors/perform.rb:20:in `visit' /Users/me/.rvm/gems/ruby-1.9.3-p194/gems/sass-3.2.0.alpha.237/lib/sass/tree/visitors/base.rb:53:in `block in visit_children' /Users/me/.rvm/gems/ruby-1.9.3-p194/gems/sass-3.2.0.alpha.237/lib/sass/tree/visitors/base.rb:53:in `map' /Users/me/.rvm/gems/ruby-1.9.3-p194/gems/sass-3.2.0.alpha.237/lib/sass/tree/visitors/base.rb:53:in `visit_children' /Users/me/.rvm/gems/ruby-1.9.3-p194/gems/sass-3.2.0.alpha.237/lib/sass/tree/visitors/perform.rb:29:in `block in visit_children' /Users/me/.rvm/gems/ruby-1.9.3-p194/gems/sass-3.2.0.alpha.237/lib/sass/tree/visitors/perform.rb:41:in `with_environment' /Users/me/.rvm/gems/ruby-1.9.3-p194/gems/sass-3.2.0.alpha.237/lib/sass/tree/visitors/perform.rb:28:in `visit_children' /Users/me/.rvm/gems/ruby-1.9.3-p194/gems/sass-3.2.0.alpha.237/lib/sass/tree/visitors/base.rb:37:in `block in visit' /Users/me/.rvm/gems/ruby-1.9.3-p194/gems/sass-3.2.0.alpha.237/lib/sass/tree/visitors/perform.rb:49:in `visit_root' /Users/me/.rvm/gems/ruby-1.9.3-p194/gems/sass-3.2.0.alpha.237/lib/sass/tree/visitors/base.rb:37:in `visit' /Users/me/.rvm/gems/ruby-1.9.3-p194/gems/sass-3.2.0.alpha.237/lib/sass/tree/visitors/perform.rb:20:in `visit' /Users/me/.rvm/gems/ruby-1.9.3-p194/gems/sass-3.2.0.alpha.237/lib/sass/tree/visitors/perform.rb:7:in `visit' /Users/me/.rvm/gems/ruby-1.9.3-p194/gems/sass-3.2.0.alpha.237/lib/sass/tree/root_node.rb:20:in `render' /Users/me/.rvm/gems/ruby-1.9.3-p194/gems/sass-3.2.0.alpha.237/lib/sass/engine.rb:308:in `_render' /Users/me/.rvm/gems/ruby-1.9.3-p194/gems/sass-3.2.0.alpha.237/lib/sass/engine.rb:255:in `render' /Users/me/.rvm/gems/ruby-1.9.3-p194/gems/compass-0.12.2/lib/compass/compiler.rb:140:in `block (2 levels) in compile' /Users/me/.rvm/gems/ruby-1.9.3-p194/gems/compass-0.12.2/lib/compass/compiler.rb:126:in `timed' /Users/me/.rvm/gems/ruby-1.9.3-p194/gems/compass-0.12.2/lib/compass/compiler.rb:139:in `block in compile' /Users/me/.rvm/gems/ruby-1.9.3-p194/gems/compass-0.12.2/lib/compass/logger.rb:45:in `red' /Users/me/.rvm/gems/ruby-1.9.3-p194/gems/compass-0.12.2/lib/compass/compiler.rb:138:in `compile' /Users/me/.rvm/gems/ruby-1.9.3-p194/gems/compass-0.12.2/lib/compass/compiler.rb:118:in `compile_if_required' /Users/me/.rvm/gems/ruby-1.9.3-p194/gems/compass-0.12.2/lib/compass/compiler.rb:103:in `block (2 levels) in run' /Users/me/.rvm/gems/ruby-1.9.3-p194/gems/compass-0.12.2/lib/compass/compiler.rb:101:in `each' /Users/me/.rvm/gems/ruby-1.9.3-p194/gems/compass-0.12.2/lib/compass/compiler.rb:101:in `block in run' /Users/me/.rvm/gems/ruby-1.9.3-p194/gems/compass-0.12.2/lib/compass/compiler.rb:126:in `timed' /Users/me/.rvm/gems/ruby-1.9.3-p194/gems/compass-0.12.2/lib/compass/compiler.rb:100:in `run' /Users/me/.rvm/gems/ruby-1.9.3-p194/gems/compass-0.12.2/lib/compass/commands/watch_project.rb:147:in `recompile' /Users/me/.rvm/gems/ruby-1.9.3-p194/gems/compass-0.12.2/lib/compass/commands/watch_project.rb:68:in `perform' /Users/me/.rvm/gems/ruby-1.9.3-p194/gems/compass-0.12.2/lib/compass/commands/base.rb:18:in `execute' /Users/me/.rvm/gems/ruby-1.9.3-p194/gems/compass-0.12.2/lib/compass/commands/project_base.rb:19:in `execute' /Users/me/.rvm/gems/ruby-1.9.3-p194/gems/compass-0.12.2/lib/compass/exec/sub_command_ui.rb:43:in `perform!' /Users/me/.rvm/gems/ruby-1.9.3-p194/gems/compass-0.12.2/lib/compass/exec/sub_command_ui.rb:15:in `run!' /Users/me/.rvm/gems/ruby-1.9.3-p194/gems/compass-0.12.2/bin/compass:30:in `block in &lt;top (required)&gt;' /Users/me/.rvm/gems/ruby-1.9.3-p194/gems/compass-0.12.2/bin/compass:44:in `call' /Users/me/.rvm/gems/ruby-1.9.3-p194/gems/compass-0.12.2/bin/compass:44:in `&lt;top (required)&gt;' /Users/me/.rvm/gems/ruby-1.9.3-p194/bin/compass:19:in `load' /Users/me/.rvm/gems/ruby-1.9.3-p194/bin/compass:19:in `&lt;main&gt;' /Users/me/.rvm/gems/ruby-1.9.3-p194/bin/ruby_noexec_wrapper:14:in `eval' /Users/me/.rvm/gems/ruby-1.9.3-p194/bin/ruby_noexec_wrapper:14:in `&lt;main&gt;' LoadError on line ["70"] of /Users/me/.rvm/gems/ruby-1.9.3-p194/gems/compass-0.12.2/lib/compass/commands/watch_project.rb: cannot load such file -- fssm /Users/me/.rvm/gems/ruby-1.9.3-p194/gems/compass-0.12.2/lib/compass/commands/watch_project.rb:70:in `perform' /Users/me/.rvm/gems/ruby-1.9.3-p194/gems/compass-0.12.2/lib/compass/commands/base.rb:18:in `execute' /Users/me/.rvm/gems/ruby-1.9.3-p194/gems/compass-0.12.2/lib/compass/commands/project_base.rb:19:in `execute' /Users/me/.rvm/gems/ruby-1.9.3-p194/gems/compass-0.12.2/lib/compass/exec/sub_command_ui.rb:43:in `perform!' /Users/me/.rvm/gems/ruby-1.9.3-p194/gems/compass-0.12.2/lib/compass/exec/sub_command_ui.rb:15:in `run!' /Users/me/.rvm/gems/ruby-1.9.3-p194/gems/compass-0.12.2/bin/compass:30:in `block in &lt;top (required)&gt;' /Users/me/.rvm/gems/ruby-1.9.3-p194/gems/compass-0.12.2/bin/compass:44:in `call' /Users/me/.rvm/gems/ruby-1.9.3-p194/gems/compass-0.12.2/bin/compass:44:in `&lt;top (required)&gt;' /Users/me/.rvm/gems/ruby-1.9.3-p194/bin/compass:19:in `load' /Users/me/.rvm/gems/ruby-1.9.3-p194/bin/compass:19:in `&lt;main&gt;' /Users/me/.rvm/gems/ruby-1.9.3-p194/bin/ruby_noexec_wrapper:14:in `eval' /Users/me/.rvm/gems/ruby-1.9.3-p194/bin/ruby_noexec_wrapper:14:in `&lt;main&gt;' </code></pre>
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