这是我的 SCSS：
@import "compass";
$spriteretina: sprite-map("sprite-retina/*.png");
$sprite: sprite-map("sprite/*.png");
@mixin retina-sprite($name) {
background-image: sprite-url($sprite);
background-position: sprite-position($sprite, $name);
background-repeat: no-repeat;
display: block;
height: image-height(sprite-file($sprite, $name));
width: image-width(sprite-file($sprite, $name));
@media (-webkit-min-device-pixel-ratio: 2), (-o-min-device-pixel-ratio: 3/2), (min-device-pixel-ratio: 2) {
// Workaround for https://gist.github.com/2140082
@if (sprite-position($sprite, $name) != sprite-position($spriteretina, $name)) {
$ypos: round(nth(sprite-position($spriteretina, $name), 2) / 2);
background-position: 0 $ypos;
}
// Set image size to the orginal size of the image
@include background-size(ceil(image-width(sprite-path($spriteretina)) / 2) auto);
background-image: sprite-url($spriteretina);
}
}
.logo {
background-image: sprite-url($spriteretina);
}
当我尝试编译时，出现此错误：
PS C:\part\to\Website> compass compile
unchanged Frontend/img/icons-s49ccc64d2b.png
unchanged Frontend/img/sprite-s8e1b03f13e.png
Errno::ENOENT on line 28 of C: No such file or directory - Frontend/img/sprite-retina-sdc5ec023dc.png
Run with --trace to see the full backtrace
我用完整的回溯运行它并得到这个：
Errno::ENOENT on line 28 of C: No such file or directory - Frontend/img/sprite-retina-s7f5af5584d.png
C:/ruby187/lib/ruby/gems/1.8/gems/compass-0.12.2/lib/compass/sass_extensions/functions/image_size.rb:28:in `open'
C:/ruby187/lib/ruby/gems/1.8/gems/compass-0.12.2/lib/compass/sass_extensions/functions/image_size.rb:28:in `get_size_for_png'
C:/ruby187/lib/ruby/gems/1.8/gems/compass-0.12.2/lib/compass/sass_extensions/functions/image_size.rb:21:in `send'
C:/ruby187/lib/ruby/gems/1.8/gems/compass-0.12.2/lib/compass/sass_extensions/functions/image_size.rb:21:in `size'
C:/ruby187/lib/ruby/gems/1.8/gems/compass-0.12.2/lib/compass/sass_extensions/functions/image_size.rb:50:in `image_dimensions'
C:/ruby187/lib/ruby/gems/1.8/gems/compass-0.12.2/lib/compass/sass_extensions/functions/image_size.rb:4:in `image_width'
C:/ruby187/lib/ruby/gems/1.8/gems/sass-3.2.2/lib/sass/../sass/script/funcall.rb:106:in `send'
C:/ruby187/lib/ruby/gems/1.8/gems/sass-3.2.2/lib/sass/../sass/script/funcall.rb:106:in `_perform'
C:/ruby187/lib/ruby/gems/1.8/gems/sass-3.2.2/lib/sass/../sass/script/node.rb:40:in `perform'
C:/ruby187/lib/ruby/gems/1.8/gems/sass-3.2.2/lib/sass/../sass/script/operation.rb:74:in `_perform'
C:/ruby187/lib/ruby/gems/1.8/gems/sass-3.2.2/lib/sass/../sass/script/node.rb:40:in `perform'
C:/ruby187/lib/ruby/gems/1.8/gems/sass-3.2.2/lib/sass/../sass/script/funcall.rb:93:in `_perform'
C:/ruby187/lib/ruby/gems/1.8/gems/sass-3.2.2/lib/sass/../sass/script/funcall.rb:93:in `map'
C:/ruby187/lib/ruby/gems/1.8/gems/sass-3.2.2/lib/sass/../sass/script/funcall.rb:93:in `_perform'
C:/ruby187/lib/ruby/gems/1.8/gems/sass-3.2.2/lib/sass/../sass/script/node.rb:40:in `perform'
C:/ruby187/lib/ruby/gems/1.8/gems/sass-3.2.2/lib/sass/../sass/script/list.rb:70:in `_perform'
C:/ruby187/lib/ruby/gems/1.8/gems/sass-3.2.2/lib/sass/../sass/script/list.rb:70:in `map'
C:/ruby187/lib/ruby/gems/1.8/gems/sass-3.2.2/lib/sass/../sass/script/list.rb:70:in `_perform'
C:/ruby187/lib/ruby/gems/1.8/gems/sass-3.2.2/lib/sass/../sass/script/node.rb:40:in `perform'
C:/ruby187/lib/ruby/gems/1.8/gems/sass-3.2.2/lib/sass/../sass/tree/visitors/perform.rb:257:in `visit_mixin'
C:/ruby187/lib/ruby/gems/1.8/gems/sass-3.2.2/lib/sass/../sass/tree/visitors/perform.rb:257:in `map'
C:/ruby187/lib/ruby/gems/1.8/gems/sass-3.2.2/lib/sass/../sass/tree/visitors/perform.rb:257:in `visit_mixin'
C:/ruby187/lib/ruby/gems/1.8/gems/sass-3.2.2/lib/sass/../sass/tree/visitors/base.rb:37:in `send'
C:/ruby187/lib/ruby/gems/1.8/gems/sass-3.2.2/lib/sass/../sass/tree/visitors/base.rb:37:in `visit'
C:/ruby187/lib/ruby/gems/1.8/gems/sass-3.2.2/lib/sass/../sass/tree/visitors/perform.rb:98:in `visit'
C:/ruby187/lib/ruby/gems/1.8/gems/sass-3.2.2/lib/sass/../sass/tree/visitors/base.rb:53:in `visit_children'
C:/ruby187/lib/ruby/gems/1.8/gems/sass-3.2.2/lib/sass/../sass/tree/visitors/base.rb:53:in `map'
C:/ruby187/lib/ruby/gems/1.8/gems/sass-3.2.2/lib/sass/../sass/tree/visitors/base.rb:53:in `visit_children'
C:/ruby187/lib/ruby/gems/1.8/gems/sass-3.2.2/lib/sass/../sass/tree/visitors/perform.rb:107:in `visit_children'
C:/ruby187/lib/ruby/gems/1.8/gems/sass-3.2.2/lib/sass/../sass/tree/visitors/perform.rb:119:in `with_environment'
C:/ruby187/lib/ruby/gems/1.8/gems/sass-3.2.2/lib/sass/../sass/tree/visitors/perform.rb:106:in `visit_children'
C:/ruby187/lib/ruby/gems/1.8/gems/sass-3.2.2/lib/sass/../sass/tree/visitors/base.rb:37:in `visit'
C:/ruby187/lib/ruby/gems/1.8/gems/sass-3.2.2/lib/sass/../sass/tree/visitors/perform.rb:362:in `visit_media'
C:/ruby187/lib/ruby/gems/1.8/gems/sass-3.2.2/lib/sass/../sass/tree/visitors/base.rb:37:in `send'
C:/ruby187/lib/ruby/gems/1.8/gems/sass-3.2.2/lib/sass/../sass/tree/visitors/base.rb:37:in `visit'
C:/ruby187/lib/ruby/gems/1.8/gems/sass-3.2.2/lib/sass/../sass/tree/visitors/perform.rb:98:in `visit'
C:/ruby187/lib/ruby/gems/1.8/gems/sass-3.2.2/lib/sass/../sass/tree/visitors/perform.rb:266:in `visit_mixin'
C:/ruby187/lib/ruby/gems/1.8/gems/sass-3.2.2/lib/sass/../sass/tree/visitors/perform.rb:266:in `map'
C:/ruby187/lib/ruby/gems/1.8/gems/sass-3.2.2/lib/sass/../sass/tree/visitors/perform.rb:266:in `visit_mixin'
C:/ruby187/lib/ruby/gems/1.8/gems/sass-3.2.2/lib/sass/../sass/tree/visitors/perform.rb:119:in `with_environment'
C:/ruby187/lib/ruby/gems/1.8/gems/sass-3.2.2/lib/sass/../sass/tree/visitors/perform.rb:266:in `visit_mixin'
C:/ruby187/lib/ruby/gems/1.8/gems/sass-3.2.2/lib/sass/../sass/tree/visitors/perform.rb:68:in `perform_arguments'
C:/ruby187/lib/ruby/gems/1.8/gems/sass-3.2.2/lib/sass/../sass/tree/visitors/perform.rb:261:in `visit_mixin'
C:/ruby187/lib/ruby/gems/1.8/gems/sass-3.2.2/lib/sass/../sass/tree/visitors/base.rb:37:in `send'
C:/ruby187/lib/ruby/gems/1.8/gems/sass-3.2.2/lib/sass/../sass/tree/visitors/base.rb:37:in `visit'
C:/ruby187/lib/ruby/gems/1.8/gems/sass-3.2.2/lib/sass/../sass/tree/visitors/perform.rb:98:in `visit'
C:/ruby187/lib/ruby/gems/1.8/gems/sass-3.2.2/lib/sass/../sass/tree/visitors/base.rb:53:in `visit_children'
C:/ruby187/lib/ruby/gems/1.8/gems/sass-3.2.2/lib/sass/../sass/tree/visitors/base.rb:53:in `map'
C:/ruby187/lib/ruby/gems/1.8/gems/sass-3.2.2/lib/sass/../sass/tree/visitors/base.rb:53:in `visit_children'
C:/ruby187/lib/ruby/gems/1.8/gems/sass-3.2.2/lib/sass/../sass/tree/visitors/perform.rb:107:in `visit_children'
C:/ruby187/lib/ruby/gems/1.8/gems/sass-3.2.2/lib/sass/../sass/tree/visitors/perform.rb:119:in `with_environment'
C:/ruby187/lib/ruby/gems/1.8/gems/sass-3.2.2/lib/sass/../sass/tree/visitors/perform.rb:106:in `visit_children'
C:/ruby187/lib/ruby/gems/1.8/gems/sass-3.2.2/lib/sass/../sass/tree/visitors/base.rb:37:in `visit'
C:/ruby187/lib/ruby/gems/1.8/gems/sass-3.2.2/lib/sass/../sass/tree/visitors/perform.rb:318:in `visit_rule'
C:/ruby187/lib/ruby/gems/1.8/gems/sass-3.2.2/lib/sass/../sass/tree/visitors/base.rb:37:in `send'
C:/ruby187/lib/ruby/gems/1.8/gems/sass-3.2.2/lib/sass/../sass/tree/visitors/base.rb:37:in `visit'
C:/ruby187/lib/ruby/gems/1.8/gems/sass-3.2.2/lib/sass/../sass/tree/visitors/perform.rb:98:in `visit'
C:/ruby187/lib/ruby/gems/1.8/gems/sass-3.2.2/lib/sass/../sass/tree/visitors/base.rb:53:in `visit_children'
C:/ruby187/lib/ruby/gems/1.8/gems/sass-3.2.2/lib/sass/../sass/tree/visitors/base.rb:53:in `map'
C:/ruby187/lib/ruby/gems/1.8/gems/sass-3.2.2/lib/sass/../sass/tree/visitors/base.rb:53:in `visit_children'
C:/ruby187/lib/ruby/gems/1.8/gems/sass-3.2.2/lib/sass/../sass/tree/visitors/perform.rb:107:in `visit_children'
C:/ruby187/lib/ruby/gems/1.8/gems/sass-3.2.2/lib/sass/../sass/tree/visitors/perform.rb:119:in `with_environment'
C:/ruby187/lib/ruby/gems/1.8/gems/sass-3.2.2/lib/sass/../sass/tree/visitors/perform.rb:106:in `visit_children'
C:/ruby187/lib/ruby/gems/1.8/gems/sass-3.2.2/lib/sass/../sass/tree/visitors/base.rb:37:in `visit'
C:/ruby187/lib/ruby/gems/1.8/gems/sass-3.2.2/lib/sass/../sass/tree/visitors/perform.rb:318:in `visit_rule'
C:/ruby187/lib/ruby/gems/1.8/gems/sass-3.2.2/lib/sass/../sass/tree/visitors/base.rb:37:in `send'
C:/ruby187/lib/ruby/gems/1.8/gems/sass-3.2.2/lib/sass/../sass/tree/visitors/base.rb:37:in `visit'
C:/ruby187/lib/ruby/gems/1.8/gems/sass-3.2.2/lib/sass/../sass/tree/visitors/perform.rb:98:in `visit'
C:/ruby187/lib/ruby/gems/1.8/gems/sass-3.2.2/lib/sass/../sass/tree/visitors/perform.rb:225:in `visit_import'
C:/ruby187/lib/ruby/gems/1.8/gems/sass-3.2.2/lib/sass/../sass/tree/visitors/perform.rb:225:in `map'
C:/ruby187/lib/ruby/gems/1.8/gems/sass-3.2.2/lib/sass/../sass/tree/visitors/perform.rb:225:in `visit_import'
C:/ruby187/lib/ruby/gems/1.8/gems/sass-3.2.2/lib/sass/../sass/tree/visitors/base.rb:37:in `send'
C:/ruby187/lib/ruby/gems/1.8/gems/sass-3.2.2/lib/sass/../sass/tree/visitors/base.rb:37:in `visit'
C:/ruby187/lib/ruby/gems/1.8/gems/sass-3.2.2/lib/sass/../sass/tree/visitors/perform.rb:98:in `visit'
C:/ruby187/lib/ruby/gems/1.8/gems/sass-3.2.2/lib/sass/../sass/tree/visitors/base.rb:53:in `visit_children'
C:/ruby187/lib/ruby/gems/1.8/gems/sass-3.2.2/lib/sass/../sass/tree/visitors/base.rb:53:in `map'
C:/ruby187/lib/ruby/gems/1.8/gems/sass-3.2.2/lib/sass/../sass/tree/visitors/base.rb:53:in `visit_children'
C:/ruby187/lib/ruby/gems/1.8/gems/sass-3.2.2/lib/sass/../sass/tree/visitors/perform.rb:107:in `visit_children'
C:/ruby187/lib/ruby/gems/1.8/gems/sass-3.2.2/lib/sass/../sass/tree/visitors/perform.rb:119:in `with_environment'
C:/ruby187/lib/ruby/gems/1.8/gems/sass-3.2.2/lib/sass/../sass/tree/visitors/perform.rb:106:in `visit_children'
C:/ruby187/lib/ruby/gems/1.8/gems/sass-3.2.2/lib/sass/../sass/tree/visitors/base.rb:37:in `visit'
C:/ruby187/lib/ruby/gems/1.8/gems/sass-3.2.2/lib/sass/../sass/tree/visitors/perform.rb:126:in `visit_root'
C:/ruby187/lib/ruby/gems/1.8/gems/sass-3.2.2/lib/sass/../sass/tree/visitors/base.rb:37:in `send'
C:/ruby187/lib/ruby/gems/1.8/gems/sass-3.2.2/lib/sass/../sass/tree/visitors/base.rb:37:in `visit'
C:/ruby187/lib/ruby/gems/1.8/gems/sass-3.2.2/lib/sass/../sass/tree/visitors/perform.rb:98:in `visit'
C:/ruby187/lib/ruby/gems/1.8/gems/sass-3.2.2/lib/sass/../sass/tree/visitors/perform.rb:7:in `send'
C:/ruby187/lib/ruby/gems/1.8/gems/sass-3.2.2/lib/sass/../sass/tree/visitors/perform.rb:7:in `visit'
C:/ruby187/lib/ruby/gems/1.8/gems/sass-3.2.2/lib/sass/../sass/tree/root_node.rb:20:in `render'
C:/ruby187/lib/ruby/gems/1.8/gems/sass-3.2.2/lib/sass/../sass/engine.rb:315:in `_render'
C:/ruby187/lib/ruby/gems/1.8/gems/sass-3.2.2/lib/sass/../sass/engine.rb:262:in `render'
C:/ruby187/lib/ruby/gems/1.8/gems/compass-0.12.2/lib/compass/compiler.rb:140:in `compile'
C:/ruby187/lib/ruby/gems/1.8/gems/compass-0.12.2/lib/compass/compiler.rb:126:in `timed'
C:/ruby187/lib/ruby/gems/1.8/gems/compass-0.12.2/lib/compass/compiler.rb:139:in `compile'
C:/ruby187/lib/ruby/gems/1.8/gems/compass-0.12.2/lib/compass/logger.rb:45:in `red'
C:/ruby187/lib/ruby/gems/1.8/gems/compass-0.12.2/lib/compass/compiler.rb:138:in `compile'
C:/ruby187/lib/ruby/gems/1.8/gems/compass-0.12.2/lib/compass/compiler.rb:118:in `compile_if_required'
C:/ruby187/lib/ruby/gems/1.8/gems/compass-0.12.2/lib/compass/compiler.rb:103:in `run'
C:/ruby187/lib/ruby/gems/1.8/gems/compass-0.12.2/lib/compass/compiler.rb:101:in `each'
C:/ruby187/lib/ruby/gems/1.8/gems/compass-0.12.2/lib/compass/compiler.rb:101:in `run'
C:/ruby187/lib/ruby/gems/1.8/gems/compass-0.12.2/lib/compass/compiler.rb:126:in `timed'
C:/ruby187/lib/ruby/gems/1.8/gems/compass-0.12.2/lib/compass/compiler.rb:100:in `run'
C:/ruby187/lib/ruby/gems/1.8/gems/compass-0.12.2/lib/compass/commands/update_project.rb:45:in `perform'
C:/ruby187/lib/ruby/gems/1.8/gems/compass-0.12.2/lib/compass/commands/base.rb:18:in `execute'
C:/ruby187/lib/ruby/gems/1.8/gems/compass-0.12.2/lib/compass/commands/project_base.rb:19:in `execute'
C:/ruby187/lib/ruby/gems/1.8/gems/compass-0.12.2/lib/compass/exec/sub_command_ui.rb:43:in `perform!'
C:/ruby187/lib/ruby/gems/1.8/gems/compass-0.12.2/lib/compass/exec/sub_command_ui.rb:15:in `run!'
C:/ruby187/lib/ruby/gems/1.8/gems/compass-0.12.2/bin/compass:30
C:/ruby187/lib/ruby/gems/1.8/gems/compass-0.12.2/bin/compass:44:in `call'
C:/ruby187/lib/ruby/gems/1.8/gems/compass-0.12.2/bin/compass:44
C:/ruby187/bin/compass:19:in `load'
C:/ruby187/bin/compass:19
对我来说，它似乎是在创建精灵文件之前尝试读取它。这给出了一个错误。但为什么我会遇到这种行为？我能做些什么来解决它？
我试图删除所有 .sass-cache 文件，重命名我的文件夹。但没有运气。