Rails 在 application.html.erb 中引入 css 出错,忘高手帮忙给看看
访问：http://192.168.1.117:3000/static_pages/home,,本程序是按照Ruby出现如下错误 on Rails Tutorial 原书第 2 版 第 5 章写的
application.html.erb 文件
<!DOCTYPE html>
<html>
<head>
<title><%= full_title(yield(:title)) %></title>
<%= stylesheet_link_tag "application", media: "all","data-turbolinks-track" => true %>
<%= javascript_include_tag "application", "data-turbolinks-track" => true %>
<%= csrf_meta_tags %>
<%= render 'layouts/shim' %>
</head>
<body>
<%= render 'layouts/header' %>
<div class="container">
<%= yield %>
<%= render 'layouts/footer' %>
</div>
</body>
</html>
development.log 文件
Started GET "/static_pages/home" for 192.168.1.104 at 2014-05-01 06:54:06 +0000
Processing by StaticPagesController#home as HTML
Rendered static_pages/home.html.erb within layouts/application (16.2ms)
Completed 500 Internal Server Error in 348ms
ActionView::Template::Error (undefined method `environment' for nil:NilClass
(in /home/vagrant/rails_projects/sample_app10/app/assets/stylesheets/custom.css.scss)):
2: <html>
3: <head>
4: <title><%= full_title(yield(:title)) %></title>
5: <%= stylesheet_link_tag "application", media: "all","data-turbolinks-track" => true %>
6: <%= javascript_include_tag "application", "data-turbolinks-track" => true %>
7: <%= csrf_meta_tags %>
8: <%= render 'layouts/shim' %>
app/views/layouts/application.html.erb:5:in `_app_views_layouts_application_html_erb___983202441__584663748'
Rendered /home/vagrant/.rbenv/versions/2.0.0-p0/lib/ruby/gems/2.0.0/gems/actionpack-4.0.4/lib/action_dispatch/middleware/templates/rescues/_trace.erb (1.8ms)
Rendered /home/vagrant/.rbenv/versions/2.0.0-p0/lib/ruby/gems/2.0.0/gems/actionpack-4.0.4/lib/action_dispatch/middleware/templates/rescues/_request_and_response.erb (58.7ms)
Rendered /home/vagrant/.rbenv/versions/2.0.0-p0/lib/ruby/gems/2.0.0/gems/actionpack-4.0.4/lib/action_dispatch/middleware/templates/rescues/template_error.erb within rescues/layout (79.8ms)
custom.css.scss 文件
@import "bootstrap";
/* mixins, variables, etc. */
$grayMediumLight: #eaeaea;
@mixin box_sizing {
-moz-box-sizing: border-box;
-webkit-box-sizing: border-box;
box-sizing: border-box;
}
/* universal */
html {
overflow-y: scroll;
}
body {
padding-top: 60px;
}
section {
overflow: auto;
}
textarea {
resize: vertical;
}
.center {
text-align: center;
h1 {
margin-bottom: 10px;
}
}
/* typography */
h1, h2, h3, h4, h5, h6 {
line-height: 1;
}
h1 {
font-size: 3em;
letter-spacing: -2px;
margin-bottom: 30px;
text-align: center;
}
h2 {
font-size: 1.2em;
letter-spacing: -1px;
margin-bottom: 30px;
text-align: center;
font-weight: normal;
color: $grayLight;
}
p {
font-size: 1.1em;
line-height: 1.7em;
}
/* header */
#logo {
float: left;
margin-right: 10px;
font-size: 1.7em;
color: white;
text-transform: uppercase;
letter-spacing: -1px;
padding-top: 9px;
font-weight: bold;
line-height: 1;
&:hover {
color: white;
text-decoration: none;
}
}
/* footer */
footer {
margin-top: 45px;
padding-top: 5px;
border-top: 1px solid $grayMediumLight;
color: $grayLight;
a {
color: $gray;
&:hover {
color: $grayDarker;
}
}
small {
float: left;
}
ul {
float: right;
list-style: none;
li {
float: left;
margin-left: 10px;
}
}
}
/* miscellaneous */
.debug_dump {
clear: both;
float: left;
width: 100%;
margin-top: 45px;
@include box_sizing;
}
/* sidebar */
aside {
section {
padding: 10px 0;
border-top: 1px solid $grayLighter;
&:first-child {
border: 0;
padding-top: 0;
}
span {
display: block;
margin-bottom: 3px;
line-height: 1;
}
h1 {
font-size: 1.4em;
text-align: left;
letter-spacing: -1px;
margin-bottom: 3px;
margin-top: 0px;
}
}
}
.gravatar {
float: left;
margin-right: 10px;
}
.stats {
overflow: auto;
a {
float: left;
padding: 0 10px;
border-left: 1px solid $grayLighter;
color: gray;
&:first-child {
padding-left: 0;
border: 0;
}
&:hover {
text-decoration: none;
color: $blue;
}
}
strong {
display: block;
}
}
.user_avatars {
overflow: auto;
margin-top: 10px;
.gravatar {
margin: 1px 1px;
}
}
/* forms */
input, textarea, select, .uneditable-input {
border: 1px solid #bbb;
width: 100%;
margin-bottom: 15px;
@include box_sizing;
}
input {
height: auto !important;
}
#error_explanation {
color: #f00;
ul {
list-style: none;
margin: 0 0 18px 0;
}
}
.field_with_errors {
@extend .control-group;
@extend .error;
}
/* Users index */
.users {
list-style: none;
margin: 0;
li {
overflow: auto;
padding: 10px 0;
border-top: 1px solid $grayLighter;
&:last-child {
border-bottom: 1px solid $grayLighter;
}
}
}
/* microposts */
.microposts {
list-style: none;
margin: 10px 0 0 0;
li {
padding: 10px 0;
border-top: 1px solid #e8e8e8;
}
}
.content {
display: block;
}
.timestamp {
color: $grayLight;
}
.gravatar {
float: left;
margin-right: 10px;
}
aside {
textarea {
height: 100px;
margin-bottom: 5px;
}
}
