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Sprite error: NoMethodError: undefined method `[]' for nil:NilClass #67

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castus opened this issue Nov 7, 2012 · 1 comment
Closed

Sprite error: NoMethodError: undefined method `[]' for nil:NilClass #67

castus opened this issue Nov 7, 2012 · 1 comment

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@castus
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castus commented Nov 7, 2012

Hi,

Please help. I have this when trying to generate sprites:

NoMethodError: undefined method `[]' for nil:NilClass

I have sprites in app/assets/images/sprites/desktop/
Imported this way: @import "sprites/desktop/*.png";

Versions:
Rails 3.2.8
compass (0.12.2)
compass-rails (1.0.3)

RAILS_ROOT:

RAILS_ROOT = "#{File.dirname(__FILE__)}/.." unless defined?(RAILS_ROOT)

compass.rb

project_type = :rails
project_path = RAILS_ROOT if defined?(RAILS_ROOT)
line_comments = false
output_style = (Rails.env.production?) ? :compressed : :expanded
relative_assets = true

sass_options = {
  :unix_newlines => true
}

Full Backtrace (content of CSS file):

/*
NoMethodError: undefined method `[]' for nil:NilClass

Backtrace:
/Users/krzysiek/.rvm/gems/ruby-1.9.3-head/gems/sass-rails-3.2.5/lib/sass/rails/helpers.rb:32:in `resolver'
/Users/krzysiek/.rvm/gems/ruby-1.9.3-head/gems/sass-rails-3.2.5/lib/sass/rails/helpers.rb:36:in `public_path'
/Users/krzysiek/.rvm/gems/ruby-1.9.3-head/gems/sass-rails-3.2.5/lib/sass/rails/helpers.rb:15:in `asset_url'
/Users/krzysiek/.rvm/gems/ruby-1.9.3-head/gems/compass-rails-1.0.3/lib/compass-rails/patches/3_1.rb:5:in `generated_image_url'
/Users/krzysiek/.rvm/gems/ruby-1.9.3-head/gems/compass-0.12.2/lib/compass/sass_extensions/functions/sprites.rb:123:in `sprite_url'
/Users/krzysiek/.rvm/gems/ruby-1.9.3-head/gems/compass-0.12.2/lib/compass/sass_extensions/sprites/sprite_map.rb:72:in `method_missing'
/Users/krzysiek/.rvm/gems/ruby-1.9.3-head/gems/compass-0.12.2/lib/compass/sass_extensions/sprites/sprite_map.rb:63:in `to_s'
/Users/krzysiek/.rvm/gems/ruby-1.9.3-head/gems/sass-3.2.2/lib/sass/script/list.rb:44:in `block in to_s'
/Users/krzysiek/.rvm/gems/ruby-1.9.3-head/gems/sass-3.2.2/lib/sass/script/list.rb:44:in `map'
/Users/krzysiek/.rvm/gems/ruby-1.9.3-head/gems/sass-3.2.2/lib/sass/script/list.rb:44:in `to_s'
/Users/krzysiek/.rvm/gems/ruby-1.9.3-head/gems/sass-3.2.2/lib/sass/tree/visitors/perform.rb:297:in `visit_prop'
/Users/krzysiek/.rvm/gems/ruby-1.9.3-head/gems/sass-3.2.2/lib/sass/tree/visitors/base.rb:37:in `visit'
/Users/krzysiek/.rvm/gems/ruby-1.9.3-head/gems/sass-3.2.2/lib/sass/tree/visitors/perform.rb:98:in `visit'
/Users/krzysiek/.rvm/gems/ruby-1.9.3-head/gems/sass-3.2.2/lib/sass/tree/visitors/base.rb:53:in `block in visit_children'
/Users/krzysiek/.rvm/gems/ruby-1.9.3-head/gems/sass-3.2.2/lib/sass/tree/visitors/base.rb:53:in `map'
/Users/krzysiek/.rvm/gems/ruby-1.9.3-head/gems/sass-3.2.2/lib/sass/tree/visitors/base.rb:53:in `visit_children'
/Users/krzysiek/.rvm/gems/ruby-1.9.3-head/gems/sass-3.2.2/lib/sass/tree/visitors/perform.rb:107:in `block in visit_children'
/Users/krzysiek/.rvm/gems/ruby-1.9.3-head/gems/sass-3.2.2/lib/sass/tree/visitors/perform.rb:119:in `with_environment'
/Users/krzysiek/.rvm/gems/ruby-1.9.3-head/gems/sass-3.2.2/lib/sass/tree/visitors/perform.rb:106:in `visit_children'
/Users/krzysiek/.rvm/gems/ruby-1.9.3-head/gems/sass-3.2.2/lib/sass/tree/visitors/base.rb:37:in `block in visit'
/Users/krzysiek/.rvm/gems/ruby-1.9.3-head/gems/sass-3.2.2/lib/sass/tree/visitors/perform.rb:318:in `visit_rule'
/Users/krzysiek/.rvm/gems/ruby-1.9.3-head/gems/sass-3.2.2/lib/sass/tree/visitors/base.rb:37:in `visit'
/Users/krzysiek/.rvm/gems/ruby-1.9.3-head/gems/sass-3.2.2/lib/sass/tree/visitors/perform.rb:98:in `visit'
/Users/krzysiek/.rvm/gems/ruby-1.9.3-head/gems/sass-3.2.2/lib/sass/tree/visitors/base.rb:53:in `block in visit_children'
/Users/krzysiek/.rvm/gems/ruby-1.9.3-head/gems/sass-3.2.2/lib/sass/tree/visitors/base.rb:53:in `map'
/Users/krzysiek/.rvm/gems/ruby-1.9.3-head/gems/sass-3.2.2/lib/sass/tree/visitors/base.rb:53:in `visit_children'
/Users/krzysiek/.rvm/gems/ruby-1.9.3-head/gems/sass-3.2.2/lib/sass/tree/visitors/perform.rb:107:in `block in visit_children'
/Users/krzysiek/.rvm/gems/ruby-1.9.3-head/gems/sass-3.2.2/lib/sass/tree/visitors/perform.rb:119:in `with_environment'
/Users/krzysiek/.rvm/gems/ruby-1.9.3-head/gems/sass-3.2.2/lib/sass/tree/visitors/perform.rb:106:in `visit_children'
/Users/krzysiek/.rvm/gems/ruby-1.9.3-head/gems/sass-3.2.2/lib/sass/tree/visitors/base.rb:37:in `block in visit'
/Users/krzysiek/.rvm/gems/ruby-1.9.3-head/gems/sass-3.2.2/lib/sass/tree/visitors/perform.rb:203:in `visit_if'
/Users/krzysiek/.rvm/gems/ruby-1.9.3-head/gems/sass-3.2.2/lib/sass/tree/visitors/base.rb:37:in `visit'
/Users/krzysiek/.rvm/gems/ruby-1.9.3-head/gems/sass-3.2.2/lib/sass/tree/visitors/perform.rb:98:in `visit'
/Users/krzysiek/.rvm/gems/ruby-1.9.3-head/gems/sass-3.2.2/lib/sass/tree/visitors/perform.rb:206:in `visit_if'
/Users/krzysiek/.rvm/gems/ruby-1.9.3-head/gems/sass-3.2.2/lib/sass/tree/visitors/base.rb:37:in `visit'
/Users/krzysiek/.rvm/gems/ruby-1.9.3-head/gems/sass-3.2.2/lib/sass/tree/visitors/perform.rb:98:in `visit'
/Users/krzysiek/.rvm/gems/ruby-1.9.3-head/gems/sass-3.2.2/lib/sass/tree/visitors/perform.rb:225:in `block in visit_import'
/Users/krzysiek/.rvm/gems/ruby-1.9.3-head/gems/sass-3.2.2/lib/sass/tree/visitors/perform.rb:225:in `map'
/Users/krzysiek/.rvm/gems/ruby-1.9.3-head/gems/sass-3.2.2/lib/sass/tree/visitors/perform.rb:225:in `visit_import'
/Users/krzysiek/.rvm/gems/ruby-1.9.3-head/gems/sass-3.2.2/lib/sass/tree/visitors/base.rb:37:in `visit'
/Users/krzysiek/.rvm/gems/ruby-1.9.3-head/gems/sass-3.2.2/lib/sass/tree/visitors/perform.rb:98:in `visit'
/Users/krzysiek/.rvm/gems/ruby-1.9.3-head/gems/sass-3.2.2/lib/sass/tree/visitors/perform.rb:225:in `block in visit_import'
/Users/krzysiek/.rvm/gems/ruby-1.9.3-head/gems/sass-3.2.2/lib/sass/tree/visitors/perform.rb:225:in `map'
/Users/krzysiek/.rvm/gems/ruby-1.9.3-head/gems/sass-3.2.2/lib/sass/tree/visitors/perform.rb:225:in `visit_import'
/Users/krzysiek/.rvm/gems/ruby-1.9.3-head/gems/sass-3.2.2/lib/sass/tree/visitors/base.rb:37:in `visit'
/Users/krzysiek/.rvm/gems/ruby-1.9.3-head/gems/sass-3.2.2/lib/sass/tree/visitors/perform.rb:98:in `visit'
/Users/krzysiek/.rvm/gems/ruby-1.9.3-head/gems/sass-3.2.2/lib/sass/tree/visitors/base.rb:53:in `block in visit_children'
/Users/krzysiek/.rvm/gems/ruby-1.9.3-head/gems/sass-3.2.2/lib/sass/tree/visitors/base.rb:53:in `map'
/Users/krzysiek/.rvm/gems/ruby-1.9.3-head/gems/sass-3.2.2/lib/sass/tree/visitors/base.rb:53:in `visit_children'
/Users/krzysiek/.rvm/gems/ruby-1.9.3-head/gems/sass-3.2.2/lib/sass/tree/visitors/perform.rb:107:in `block in visit_children'
/Users/krzysiek/.rvm/gems/ruby-1.9.3-head/gems/sass-3.2.2/lib/sass/tree/visitors/perform.rb:119:in `with_environment'
/Users/krzysiek/.rvm/gems/ruby-1.9.3-head/gems/sass-3.2.2/lib/sass/tree/visitors/perform.rb:106:in `visit_children'
/Users/krzysiek/.rvm/gems/ruby-1.9.3-head/gems/sass-3.2.2/lib/sass/tree/visitors/base.rb:37:in `block in visit'
/Users/krzysiek/.rvm/gems/ruby-1.9.3-head/gems/sass-3.2.2/lib/sass/tree/visitors/perform.rb:126:in `visit_root'
/Users/krzysiek/.rvm/gems/ruby-1.9.3-head/gems/sass-3.2.2/lib/sass/tree/visitors/base.rb:37:in `visit'
/Users/krzysiek/.rvm/gems/ruby-1.9.3-head/gems/sass-3.2.2/lib/sass/tree/visitors/perform.rb:98:in `visit'
/Users/krzysiek/.rvm/gems/ruby-1.9.3-head/gems/sass-3.2.2/lib/sass/tree/visitors/perform.rb:7:in `visit'
/Users/krzysiek/.rvm/gems/ruby-1.9.3-head/gems/sass-3.2.2/lib/sass/tree/root_node.rb:20:in `render'
/Users/krzysiek/.rvm/gems/ruby-1.9.3-head/gems/sass-3.2.2/lib/sass/engine.rb:315:in `_render'
/Users/krzysiek/.rvm/gems/ruby-1.9.3-head/gems/sass-3.2.2/lib/sass/engine.rb:263:in `block in render'
/Users/krzysiek/.rvm/gems/ruby-1.9.3-head/gems/sass-3.2.2/lib/sass/util.rb:371:in `silence_sass_warnings'
/Users/krzysiek/.rvm/gems/ruby-1.9.3-head/gems/sass-3.2.2/lib/sass/engine.rb:263:in `render'
/Users/krzysiek/.rvm/gems/ruby-1.9.3-head/gems/sass-3.2.2/lib/sass/plugin/compiler.rb:340:in `update_stylesheet'
/Users/krzysiek/.rvm/gems/ruby-1.9.3-head/gems/sass-3.2.2/lib/sass/plugin/compiler.rb:202:in `block in update_stylesheets'
/Users/krzysiek/.rvm/gems/ruby-1.9.3-head/gems/sass-3.2.2/lib/sass/plugin/compiler.rb:200:in `each'
/Users/krzysiek/.rvm/gems/ruby-1.9.3-head/gems/sass-3.2.2/lib/sass/plugin/compiler.rb:200:in `update_stylesheets'
/Users/krzysiek/.rvm/gems/ruby-1.9.3-head/gems/sass-3.2.2/lib/sass/plugin.rb:81:in `update_stylesheets'
/Users/krzysiek/.rvm/gems/ruby-1.9.3-head/gems/sass-3.2.2/lib/sass/plugin.rb:54:in `check_for_updates'
/Users/krzysiek/.rvm/gems/ruby-1.9.3-head/gems/sass-3.2.2/lib/sass/plugin/rack.rb:51:in `call'
/Users/krzysiek/.rvm/gems/ruby-1.9.3-head/gems/actionpack-3.2.8/lib/action_dispatch/middleware/best_standards_support.rb:17:in `call'
/Users/krzysiek/.rvm/gems/ruby-1.9.3-head/gems/rack-1.4.1/lib/rack/etag.rb:23:in `call'
/Users/krzysiek/.rvm/gems/ruby-1.9.3-head/gems/rack-1.4.1/lib/rack/conditionalget.rb:25:in `call'
/Users/krzysiek/.rvm/gems/ruby-1.9.3-head/gems/actionpack-3.2.8/lib/action_dispatch/middleware/head.rb:14:in `call'
/Users/krzysiek/.rvm/gems/ruby-1.9.3-head/gems/actionpack-3.2.8/lib/action_dispatch/middleware/params_parser.rb:21:in `call'
/Users/krzysiek/.rvm/gems/ruby-1.9.3-head/gems/actionpack-3.2.8/lib/action_dispatch/middleware/flash.rb:242:in `call'
/Users/krzysiek/.rvm/gems/ruby-1.9.3-head/gems/rack-1.4.1/lib/rack/session/abstract/id.rb:205:in `context'
/Users/krzysiek/.rvm/gems/ruby-1.9.3-head/gems/rack-1.4.1/lib/rack/session/abstract/id.rb:200:in `call'
/Users/krzysiek/.rvm/gems/ruby-1.9.3-head/gems/actionpack-3.2.8/lib/action_dispatch/middleware/cookies.rb:339:in `call'
/Users/krzysiek/.rvm/gems/ruby-1.9.3-head/gems/activerecord-3.2.8/lib/active_record/query_cache.rb:64:in `call'
/Users/krzysiek/.rvm/gems/ruby-1.9.3-head/gems/activerecord-3.2.8/lib/active_record/connection_adapters/abstract/connection_pool.rb:473:in `call'
/Users/krzysiek/.rvm/gems/ruby-1.9.3-head/gems/actionpack-3.2.8/lib/action_dispatch/middleware/callbacks.rb:28:in `block in call'
/Users/krzysiek/.rvm/gems/ruby-1.9.3-head/gems/activesupport-3.2.8/lib/active_support/callbacks.rb:405:in `_run__520423418062779489__call__2101148808974438899__callbacks'
/Users/krzysiek/.rvm/gems/ruby-1.9.3-head/gems/activesupport-3.2.8/lib/active_support/callbacks.rb:405:in `__run_callback'
/Users/krzysiek/.rvm/gems/ruby-1.9.3-head/gems/activesupport-3.2.8/lib/active_support/callbacks.rb:385:in `_run_call_callbacks'
/Users/krzysiek/.rvm/gems/ruby-1.9.3-head/gems/activesupport-3.2.8/lib/active_support/callbacks.rb:81:in `run_callbacks'
/Users/krzysiek/.rvm/gems/ruby-1.9.3-head/gems/actionpack-3.2.8/lib/action_dispatch/middleware/callbacks.rb:27:in `call'
/Users/krzysiek/.rvm/gems/ruby-1.9.3-head/gems/actionpack-3.2.8/lib/action_dispatch/middleware/reloader.rb:65:in `call'
/Users/krzysiek/.rvm/gems/ruby-1.9.3-head/gems/actionpack-3.2.8/lib/action_dispatch/middleware/remote_ip.rb:31:in `call'
/Users/krzysiek/.rvm/gems/ruby-1.9.3-head/gems/actionpack-3.2.8/lib/action_dispatch/middleware/debug_exceptions.rb:16:in `call'
/Users/krzysiek/.rvm/gems/ruby-1.9.3-head/gems/actionpack-3.2.8/lib/action_dispatch/middleware/show_exceptions.rb:56:in `call'
/Users/krzysiek/.rvm/gems/ruby-1.9.3-head/gems/railties-3.2.8/lib/rails/rack/logger.rb:26:in `call_app'
/Users/krzysiek/.rvm/gems/ruby-1.9.3-head/gems/railties-3.2.8/lib/rails/rack/logger.rb:16:in `call'
/Users/krzysiek/.rvm/gems/ruby-1.9.3-head/gems/actionpack-3.2.8/lib/action_dispatch/middleware/request_id.rb:22:in `call'
/Users/krzysiek/.rvm/gems/ruby-1.9.3-head/gems/rack-1.4.1/lib/rack/methodoverride.rb:21:in `call'
/Users/krzysiek/.rvm/gems/ruby-1.9.3-head/gems/rack-1.4.1/lib/rack/runtime.rb:17:in `call'
/Users/krzysiek/.rvm/gems/ruby-1.9.3-head/gems/activesupport-3.2.8/lib/active_support/cache/strategy/local_cache.rb:72:in `call'
/Users/krzysiek/.rvm/gems/ruby-1.9.3-head/gems/rack-1.4.1/lib/rack/lock.rb:15:in `call'
/Users/krzysiek/.rvm/gems/ruby-1.9.3-head/gems/actionpack-3.2.8/lib/action_dispatch/middleware/static.rb:62:in `call'
/Users/krzysiek/.rvm/gems/ruby-1.9.3-head/gems/railties-3.2.8/lib/rails/engine.rb:479:in `call'
/Users/krzysiek/.rvm/gems/ruby-1.9.3-head/gems/railties-3.2.8/lib/rails/application.rb:223:in `call'
/Users/krzysiek/.rvm/gems/ruby-1.9.3-head/gems/rack-1.4.1/lib/rack/content_length.rb:14:in `call'
/Users/krzysiek/.rvm/gems/ruby-1.9.3-head/gems/railties-3.2.8/lib/rails/rack/log_tailer.rb:17:in `call'
/Users/krzysiek/.rvm/gems/ruby-1.9.3-head/gems/rack-1.4.1/lib/rack/handler/webrick.rb:59:in `service'
/Users/krzysiek/.rvm/rubies/ruby-1.9.3-head/lib/ruby/1.9.1/webrick/httpserver.rb:138:in `service'
/Users/krzysiek/.rvm/rubies/ruby-1.9.3-head/lib/ruby/1.9.1/webrick/httpserver.rb:94:in `run'
/Users/krzysiek/.rvm/rubies/ruby-1.9.3-head/lib/ruby/1.9.1/webrick/server.rb:191:in `block in start_thread'
*/
body:before {
  white-space: pre;
  font-family: monospace;
  content: "NoMethodError: undefined method `[]' for nil:NilClass"; }
@castus castus mentioned this issue Nov 8, 2012
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@castus
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castus commented Nov 9, 2012

I found a simple workaround

https://gist.github.com/4044953

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@craigmcnamara @castus