Can't sprite image called Peru.png

[magicspon]

Hello,

I've just come across the strangest bug ever. For some reason unknown to me I can not create a sprite with an image called Peru.png. All my other flag images are being sprited with no problem, just Peru.png

I thought it might be the image itself that was the problem, but nope, this is not the case. I changed the file name and issue was gone. This is the error message I get in my terminal

"NoMethodError on line 100 of /Library/Ruby/Gems/1.8/gems/compass-0.12.2/lib/compass/sass_extensions/functions/sprites.rb: undefined method `parent' for nil:NilClass
Run with --trace to see the full backtrace"

Does compass/sass have some problem with Peru? Bad Holiday?

Anyhow, heres one for the pile!

Cheers all
Dave

[niyingfeng]

I have the same problem,like true-b.png false-b.png and so on~

[jfroom]

azure.png also causes an error.

[s-hirvonen]

I had a similiar problem with an asset called snow.png. Tracing the code it executes this function:

    def convert_sprite_name(sprite)
      case sprite
        when Sass::Script::Value::Color
          rgb = if reversed_color_names.keys.first.size == 3
                  sprite.rgb
                else
                  # Sass 3.3 includes the alpha channel
                  sprite.rgba
                end
          identifier(reversed_color_names[rgb])
        when Sass::Script::Value::Bool
          identifier(sprite.to_s)
        else
          sprite
      end
    end

I wish I knew Ruby better, I can't really tell what's going on here and why. Nevertheless, this issue might be linked to the fact that 'peru', 'azure' and 'snow' are all HTML color names...

[lolmaus]

Sounds definitely like a bug and your guess seems correct to me.

Can you provide a stacktrace?

[s-hirvonen]

Created a new project with compass create, inserted files images/assets/Peru.png and images/assets/normal.png.

Output of compass compile --trace:

unchanged sass/ie.sass
unchanged sass/print.sass
   remove images/assets-sa069c51a4f.png
   create images/assets-s1e63a755af.png
NoMethodError on line ["137"] of /Users/shirvonen/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/compass-1.0.0.alpha.19/lib/compass/sass_extensions/functions/sprites.rb: undefined method `parent' for nil:NilClass
  /Users/shirvonen/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/sass-3.3.7/lib/sass/script/tree/funcall.rb:140:in `_perform'
  /Users/shirvonen/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/sass-3.3.7/lib/sass/script/tree/node.rb:50:in `perform'
  /Users/shirvonen/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/sass-3.3.7/lib/sass/tree/visitors/perform.rb:270:in `visit_if'
  /Users/shirvonen/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/sass-3.3.7/lib/sass/tree/visitors/base.rb:36:in `visit'
  /Users/shirvonen/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/sass-3.3.7/lib/sass/tree/visitors/perform.rb:152:in `block in visit'
  /Users/shirvonen/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/sass-3.3.7/lib/sass/stack.rb:79:in `block in with_base'
  /Users/shirvonen/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/sass-3.3.7/lib/sass/stack.rb:121:in `with_frame'
  /Users/shirvonen/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/sass-3.3.7/lib/sass/stack.rb:79:in `with_base'
  /Users/shirvonen/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/sass-3.3.7/lib/sass/tree/visitors/perform.rb:152:in `visit'
  /Users/shirvonen/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/sass-3.3.7/lib/sass/tree/visitors/perform.rb:223:in `block (3 levels) in visit_each'
  /Users/shirvonen/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/sass-3.3.7/lib/sass/tree/visitors/perform.rb:223:in `map'
  /Users/shirvonen/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/sass-3.3.7/lib/sass/tree/visitors/perform.rb:223:in `block (2 levels) in visit_each'
  /Users/shirvonen/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/sass-3.3.7/lib/sass/tree/visitors/perform.rb:215:in `map'
  /Users/shirvonen/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/sass-3.3.7/lib/sass/tree/visitors/perform.rb:215:in `block in visit_each'
  /Users/shirvonen/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/sass-3.3.7/lib/sass/tree/visitors/perform.rb:173:in `with_environment'
  /Users/shirvonen/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/sass-3.3.7/lib/sass/tree/visitors/perform.rb:214:in `visit_each'
  /Users/shirvonen/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/sass-3.3.7/lib/sass/tree/visitors/base.rb:36:in `visit'
  /Users/shirvonen/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/sass-3.3.7/lib/sass/tree/visitors/perform.rb:152:in `block in visit'
  /Users/shirvonen/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/sass-3.3.7/lib/sass/stack.rb:79:in `block in with_base'
  /Users/shirvonen/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/sass-3.3.7/lib/sass/stack.rb:121:in `with_frame'
  /Users/shirvonen/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/sass-3.3.7/lib/sass/stack.rb:79:in `with_base'
  /Users/shirvonen/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/sass-3.3.7/lib/sass/tree/visitors/perform.rb:152:in `visit'
  /Users/shirvonen/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/sass-3.3.7/lib/sass/tree/visitors/perform.rb:335:in `block (4 levels) in visit_mixin'
  /Users/shirvonen/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/sass-3.3.7/lib/sass/tree/visitors/perform.rb:335:in `map'
  /Users/shirvonen/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/sass-3.3.7/lib/sass/tree/visitors/perform.rb:335:in `block (3 levels) in visit_mixin'
  /Users/shirvonen/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/sass-3.3.7/lib/sass/tree/visitors/perform.rb:173:in `with_environment'
  /Users/shirvonen/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/sass-3.3.7/lib/sass/tree/visitors/perform.rb:335:in `block (2 levels) in visit_mixin'
  /Users/shirvonen/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/sass-3.3.7/lib/sass/tree/visitors/perform.rb:78:in `perform_arguments'
  /Users/shirvonen/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/sass-3.3.7/lib/sass/tree/visitors/perform.rb:330:in `block in visit_mixin'
  /Users/shirvonen/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/sass-3.3.7/lib/sass/stack.rb:98:in `block in with_mixin'
  /Users/shirvonen/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/sass-3.3.7/lib/sass/stack.rb:121:in `with_frame'
  /Users/shirvonen/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/sass-3.3.7/lib/sass/stack.rb:98:in `with_mixin'
  /Users/shirvonen/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/sass-3.3.7/lib/sass/tree/visitors/perform.rb:318:in `visit_mixin'
  /Users/shirvonen/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/sass-3.3.7/lib/sass/tree/visitors/base.rb:36:in `visit'
  /Users/shirvonen/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/sass-3.3.7/lib/sass/tree/visitors/perform.rb:152:in `block in visit'
  /Users/shirvonen/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/sass-3.3.7/lib/sass/stack.rb:79:in `block in with_base'
  /Users/shirvonen/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/sass-3.3.7/lib/sass/stack.rb:121:in `with_frame'
  /Users/shirvonen/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/sass-3.3.7/lib/sass/stack.rb:79:in `with_base'
  /Users/shirvonen/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/sass-3.3.7/lib/sass/tree/visitors/perform.rb:152:in `visit'
  /Users/shirvonen/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/sass-3.3.7/lib/sass/tree/visitors/perform.rb:335:in `block (4 levels) in visit_mixin'
  /Users/shirvonen/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/sass-3.3.7/lib/sass/tree/visitors/perform.rb:335:in `map'
  /Users/shirvonen/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/sass-3.3.7/lib/sass/tree/visitors/perform.rb:335:in `block (3 levels) in visit_mixin'
  /Users/shirvonen/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/sass-3.3.7/lib/sass/tree/visitors/perform.rb:173:in `with_environment'
  /Users/shirvonen/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/sass-3.3.7/lib/sass/tree/visitors/perform.rb:335:in `block (2 levels) in visit_mixin'
  /Users/shirvonen/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/sass-3.3.7/lib/sass/tree/visitors/perform.rb:78:in `perform_arguments'
  /Users/shirvonen/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/sass-3.3.7/lib/sass/tree/visitors/perform.rb:330:in `block in visit_mixin'
  /Users/shirvonen/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/sass-3.3.7/lib/sass/stack.rb:98:in `block in with_mixin'
  /Users/shirvonen/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/sass-3.3.7/lib/sass/stack.rb:121:in `with_frame'
  /Users/shirvonen/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/sass-3.3.7/lib/sass/stack.rb:98:in `with_mixin'
  /Users/shirvonen/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/sass-3.3.7/lib/sass/tree/visitors/perform.rb:318:in `visit_mixin'
  /Users/shirvonen/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/sass-3.3.7/lib/sass/tree/visitors/base.rb:36:in `visit'
  /Users/shirvonen/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/sass-3.3.7/lib/sass/tree/visitors/perform.rb:152:in `block in visit'
  /Users/shirvonen/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/sass-3.3.7/lib/sass/stack.rb:79:in `block in with_base'
  /Users/shirvonen/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/sass-3.3.7/lib/sass/stack.rb:121:in `with_frame'
  /Users/shirvonen/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/sass-3.3.7/lib/sass/stack.rb:79:in `with_base'
  /Users/shirvonen/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/sass-3.3.7/lib/sass/tree/visitors/perform.rb:152:in `visit'
  /Users/shirvonen/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/sass-3.3.7/lib/sass/tree/visitors/perform.rb:335:in `block (4 levels) in visit_mixin'
  /Users/shirvonen/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/sass-3.3.7/lib/sass/tree/visitors/perform.rb:335:in `map'
  /Users/shirvonen/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/sass-3.3.7/lib/sass/tree/visitors/perform.rb:335:in `block (3 levels) in visit_mixin'
  /Users/shirvonen/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/sass-3.3.7/lib/sass/tree/visitors/perform.rb:173:in `with_environment'
  /Users/shirvonen/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/sass-3.3.7/lib/sass/tree/visitors/perform.rb:335:in `block (2 levels) in visit_mixin'
  /Users/shirvonen/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/sass-3.3.7/lib/sass/tree/visitors/perform.rb:78:in `perform_arguments'
  /Users/shirvonen/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/sass-3.3.7/lib/sass/tree/visitors/perform.rb:330:in `block in visit_mixin'
  /Users/shirvonen/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/sass-3.3.7/lib/sass/stack.rb:98:in `block in with_mixin'
  /Users/shirvonen/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/sass-3.3.7/lib/sass/stack.rb:121:in `with_frame'
  /Users/shirvonen/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/sass-3.3.7/lib/sass/stack.rb:98:in `with_mixin'
  /Users/shirvonen/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/sass-3.3.7/lib/sass/tree/visitors/perform.rb:318:in `visit_mixin'
  /Users/shirvonen/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/sass-3.3.7/lib/sass/tree/visitors/base.rb:36:in `visit'
  /Users/shirvonen/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/sass-3.3.7/lib/sass/tree/visitors/perform.rb:152:in `block in visit'
  /Users/shirvonen/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/sass-3.3.7/lib/sass/stack.rb:79:in `block in with_base'
  /Users/shirvonen/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/sass-3.3.7/lib/sass/stack.rb:121:in `with_frame'
  /Users/shirvonen/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/sass-3.3.7/lib/sass/stack.rb:79:in `with_base'
  /Users/shirvonen/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/sass-3.3.7/lib/sass/tree/visitors/perform.rb:152:in `visit'
  /Users/shirvonen/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/sass-3.3.7/lib/sass/tree/visitors/base.rb:52:in `block in visit_children'
  /Users/shirvonen/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/sass-3.3.7/lib/sass/tree/visitors/base.rb:52:in `map'
  /Users/shirvonen/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/sass-3.3.7/lib/sass/tree/visitors/base.rb:52:in `visit_children'
  /Users/shirvonen/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/sass-3.3.7/lib/sass/tree/visitors/perform.rb:161:in `block in visit_children'
  /Users/shirvonen/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/sass-3.3.7/lib/sass/tree/visitors/perform.rb:173:in `with_environment'
  /Users/shirvonen/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/sass-3.3.7/lib/sass/tree/visitors/perform.rb:160:in `visit_children'
  /Users/shirvonen/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/sass-3.3.7/lib/sass/tree/visitors/base.rb:36:in `block in visit'
  /Users/shirvonen/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/sass-3.3.7/lib/sass/tree/visitors/perform.rb:180:in `visit_root'
  /Users/shirvonen/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/sass-3.3.7/lib/sass/tree/visitors/base.rb:36:in `visit'
  /Users/shirvonen/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/sass-3.3.7/lib/sass/tree/visitors/perform.rb:151:in `visit'
  /Users/shirvonen/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/sass-3.3.7/lib/sass/tree/visitors/perform.rb:8:in `visit'
  /Users/shirvonen/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/sass-3.3.7/lib/sass/tree/root_node.rb:36:in `css_tree'
  /Users/shirvonen/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/sass-3.3.7/lib/sass/tree/root_node.rb:20:in `render'
  /Users/shirvonen/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/sass-3.3.7/lib/sass/engine.rb:274:in `render'
  /Users/shirvonen/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/compass-import-once-1.0.4/lib/compass/import-once/engine.rb:17:in `block in render'
  /Users/shirvonen/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/compass-import-once-1.0.4/lib/compass/import-once/engine.rb:29:in `with_import_scope'
  /Users/shirvonen/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/compass-import-once-1.0.4/lib/compass/import-once/engine.rb:16:in `render'
  /Users/shirvonen/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/compass-1.0.0.alpha.19/lib/compass/compiler.rb:171:in `block (2 levels) in compile'
  /Users/shirvonen/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/compass-1.0.0.alpha.19/lib/compass/compiler.rb:153:in `timed'
  /Users/shirvonen/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/compass-1.0.0.alpha.19/lib/compass/compiler.rb:166:in `block in compile'
  /Users/shirvonen/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/compass-1.0.0.alpha.19/lib/compass/logger.rb:46:in `red'
  /Users/shirvonen/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/compass-1.0.0.alpha.19/lib/compass/compiler.rb:165:in `compile'
  /Users/shirvonen/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/compass-1.0.0.alpha.19/lib/compass/compiler.rb:144:in `compile_if_required'
  /Users/shirvonen/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/compass-1.0.0.alpha.19/lib/compass/compiler.rb:129:in `block (2 levels) in run'
  /Users/shirvonen/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/compass-1.0.0.alpha.19/lib/compass/compiler.rb:127:in `each'
  /Users/shirvonen/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/compass-1.0.0.alpha.19/lib/compass/compiler.rb:127:in `block in run'
  /Users/shirvonen/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/compass-1.0.0.alpha.19/lib/compass/compiler.rb:153:in `timed'
  /Users/shirvonen/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/compass-1.0.0.alpha.19/lib/compass/compiler.rb:126:in `run'
  /Users/shirvonen/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/compass-1.0.0.alpha.19/lib/compass/commands/update_project.rb:49:in `perform'
  /Users/shirvonen/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/compass-1.0.0.alpha.19/lib/compass/commands/base.rb:18:in `execute'
  /Users/shirvonen/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/compass-1.0.0.alpha.19/lib/compass/commands/project_base.rb:19:in `execute'
  /Users/shirvonen/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/compass-1.0.0.alpha.19/lib/compass/exec/sub_command_ui.rb:43:in `perform!'
  /Users/shirvonen/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/compass-1.0.0.alpha.19/lib/compass/exec/sub_command_ui.rb:15:in `run!'
  /Users/shirvonen/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/compass-1.0.0.alpha.19/bin/compass:30:in `block in <top (required)>'
  /Users/shirvonen/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/compass-1.0.0.alpha.19/bin/compass:44:in `call'
  /Users/shirvonen/.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/compass-1.0.0.alpha.19/bin/compass:44:in `<top (required)>'
  /Users/shirvonen/.rbenv/versions/2.1.1/bin/compass:23:in `load'
  /Users/shirvonen/.rbenv/versions/2.1.1/bin/compass:23:in `<main>'

After renaming Peru.png to foo.png, it compiles just fine.

edit: my addition to screen.sass was

@import 'assets/*.png'
@include all-assets-sprites

[lolmaus]

The stacktrace points to this line:

bool(map.image_for(sprite.value).parent.nil?)

The error is undefined method `parent' for nil:NilClass.

My guess is that map.image_for() fails to resolve properly because sprite.value returns unexpected result due to what @ALGONI assumed: a filename is mistakenly treated as a color.

I failed to find a definition for sprite.name to check my guess.

[lolmaus]

Might be this one.

If this catch is correct, it makes the issue to be a Sass issue rather than Compass one.

[mib32]

This error raises also when sprite name matches pattern _digits__string.png.

[cimmanon]

@mib32 It would not surprise me if the error for filenames with leading numbers is related to this Sass issue: sass/sass#1722

[binary1101]

I have the same problem. digits-string.png causes an error.

[sarahxoxo]

I have the same problem too.
digits-string.png causes an error.