ruby-on-rails - 将Bootstrap导入rails时，nil:NilClass的未定义方法 `environment'-6ren

ruby-on-rails - 将Bootstrap导入rails时，nil:NilClass的未定义方法 `environment'

转载作者：行者123 更新时间：2023-12-03 09:01:43

出现错误:

undefined method `environment' for nil:NilClass
Extracted source (around line #5):

<head>
  <title>Dossiyadata</title>
  <%= stylesheet_link_tag    "application", media: "all", "data-turbolinks-track" => true %>
  <%= javascript_include_tag "application", "data-turbolinks-track" => true %>
  <%= csrf_meta_tags %>
</head>

导入 bootstrap 时。不知道为什么吗？
使用Ruby 2.1.1

gem 文件:

source 'https://rubygems.org'

# Bundle edge Rails instead: gem 'rails', github: 'rails/rails'
gem 'rails', '4.0.4'


# Use SCSS for stylesheets
gem 'sass-rails'
gem 'bootstrap-sass'

跟踪:

sass-rails (4.0.1) lib/sass/rails/importer.rb:84:in `evaluate'
sass-rails (4.0.1) lib/sass/rails/importer.rb:70:in `engine_from_path'
sass-rails (4.0.1) lib/sass/rails/importer.rb:35:in `find'
sass (3.3.3) lib/sass/tree/import_node.rb:54:in `block in import'
sass (3.3.3) lib/sass/tree/import_node.rb:53:in `each'
sass (3.3.3) lib/sass/tree/import_node.rb:53:in `import'
sass (3.3.3) lib/sass/tree/import_node.rb:28:in `imported_file'
sass (3.3.3) lib/sass/tree/import_node.rb:37:in `css_import?'
sass (3.3.3) lib/sass/tree/visitors/perform.rb:283:in `visit_import'
sass (3.3.3) lib/sass/tree/visitors/base.rb:36:in `visit'
sass (3.3.3) lib/sass/tree/visitors/perform.rb:152:in `block in visit'
sass (3.3.3) lib/sass/stack.rb:79:in `block in with_base'
sass (3.3.3) lib/sass/stack.rb:121:in `with_frame'
sass (3.3.3) lib/sass/stack.rb:79:in `with_base'
sass (3.3.3) lib/sass/tree/visitors/perform.rb:152:in `visit'
sass (3.3.3) lib/sass/tree/visitors/base.rb:52:in `block in visit_children'
sass (3.3.3) lib/sass/tree/visitors/base.rb:52:in `map'
sass (3.3.3) lib/sass/tree/visitors/base.rb:52:in `visit_children'
sass (3.3.3) lib/sass/tree/visitors/perform.rb:161:in `block in visit_children'
sass (3.3.3) lib/sass/tree/visitors/perform.rb:173:in `with_environment'
sass (3.3.3) lib/sass/tree/visitors/perform.rb:160:in `visit_children'
sass (3.3.3) lib/sass/tree/visitors/base.rb:36:in `block in visit'
sass (3.3.3) lib/sass/tree/visitors/perform.rb:180:in `visit_root'
sass (3.3.3) lib/sass/tree/visitors/base.rb:36:in `visit'
sass (3.3.3) lib/sass/tree/visitors/perform.rb:151:in `visit'
sass (3.3.3) lib/sass/tree/visitors/perform.rb:8:in `visit'
sass (3.3.3) lib/sass/tree/root_node.rb:36:in `css_tree'
sass (3.3.3) lib/sass/tree/root_node.rb:20:in `render'
sass (3.3.3) lib/sass/engine.rb:274:in `render'
sprockets (2.12.0) lib/sprockets/sass_template.rb:53:in `evaluate'
tilt (1.4.1) lib/tilt/template.rb:103:in `render'
sprockets (2.12.0) lib/sprockets/context.rb:197:in `block in evaluate'
sprockets (2.12.0) lib/sprockets/context.rb:194:in `each'
sprockets (2.12.0) lib/sprockets/context.rb:194:in `evaluate'
sprockets (2.12.0) lib/sprockets/processed_asset.rb:12:in `initialize'
sprockets (2.12.0) lib/sprockets/base.rb:374:in `new'
sprockets (2.12.0) lib/sprockets/base.rb:374:in `block in build_asset'
sprockets (2.12.0) lib/sprockets/base.rb:395:in `circular_call_protection'
sprockets (2.12.0) lib/sprockets/base.rb:373:in `build_asset'
sprockets (2.12.0) lib/sprockets/index.rb:94:in `block in build_asset'
sprockets (2.12.0) lib/sprockets/caching.rb:58:in `cache_asset'
sprockets (2.12.0) lib/sprockets/index.rb:93:in `build_asset'
sprockets (2.12.0) lib/sprockets/base.rb:287:in `find_asset'
sprockets (2.12.0) lib/sprockets/index.rb:61:in `find_asset'
sprockets (2.12.0) lib/sprockets/processed_asset.rb:111:in `block in resolve_dependencies'
sprockets (2.12.0) lib/sprockets/processed_asset.rb:105:in `each'
sprockets (2.12.0) lib/sprockets/processed_asset.rb:105:in `resolve_dependencies'
sprockets (2.12.0) lib/sprockets/processed_asset.rb:97:in `build_required_assets'
sprockets (2.12.0) lib/sprockets/processed_asset.rb:16:in `initialize'
sprockets (2.12.0) lib/sprockets/base.rb:374:in `new'
sprockets (2.12.0) lib/sprockets/base.rb:374:in `block in build_asset'
sprockets (2.12.0) lib/sprockets/base.rb:395:in `circular_call_protection'
sprockets (2.12.0) lib/sprockets/base.rb:373:in `build_asset'
sprockets (2.12.0) lib/sprockets/index.rb:94:in `block in build_asset'
sprockets (2.12.0) lib/sprockets/caching.rb:58:in `cache_asset'
sprockets (2.12.0) lib/sprockets/index.rb:93:in `build_asset'
sprockets (2.12.0) lib/sprockets/base.rb:287:in `find_asset'
sprockets (2.12.0) lib/sprockets/index.rb:61:in `find_asset'
sprockets (2.12.0) lib/sprockets/bundled_asset.rb:37:in `init_with'
sprockets (2.12.0) lib/sprockets/asset.rb:24:in `from_hash'
sprockets (2.12.0) lib/sprockets/caching.rb:54:in `cache_asset'
sprockets (2.12.0) lib/sprockets/index.rb:93:in `build_asset'
sprockets (2.12.0) lib/sprockets/base.rb:287:in `find_asset'
sprockets (2.12.0) lib/sprockets/index.rb:61:in `find_asset'
sprockets (2.12.0) lib/sprockets/environment.rb:75:in `find_asset'
sprockets (2.12.0) lib/sprockets/base.rb:295:in `[]'
sprockets-rails (2.0.1) lib/sprockets/rails/helper.rb:144:in `lookup_asset_for_path'
sprockets-rails (2.0.1) lib/sprockets/rails/helper.rb:113:in `block in stylesheet_link_tag'
sprockets-rails (2.0.1) lib/sprockets/rails/helper.rb:112:in `map'
sprockets-rails (2.0.1) lib/sprockets/rails/helper.rb:112:in `stylesheet_link_tag'
app/views/layouts/application.html.erb:5:in `_app_views_layouts_application_html_erb__1423391532774445026_70293092038340'
actionpack (4.0.4) lib/action_view/template.rb:143:in `block in render'
activesupport (4.0.4) lib/active_support/notifications.rb:161:in `instrument'
actionpack (4.0.4) lib/action_view/template.rb:141:in `render'
actionpack (4.0.4) lib/action_view/renderer/template_renderer.rb:61:in `render_with_layout'
actionpack (4.0.4) lib/action_view/renderer/template_renderer.rb:47:in `render_template'
actionpack (4.0.4) lib/action_view/renderer/template_renderer.rb:17:in `render'
actionpack (4.0.4) lib/action_view/renderer/renderer.rb:42:in `render_template'
actionpack (4.0.4) lib/action_view/renderer/renderer.rb:23:in `render'
actionpack (4.0.4) lib/abstract_controller/rendering.rb:127:in `_render_template'
actionpack (4.0.4) lib/action_controller/metal/streaming.rb:219:in `_render_template'
actionpack (4.0.4) lib/abstract_controller/rendering.rb:120:in `render_to_body'
actionpack (4.0.4) lib/action_controller/metal/rendering.rb:33:in `render_to_body'
actionpack (4.0.4) lib/action_controller/metal/renderers.rb:26:in `render_to_body'
actionpack (4.0.4) lib/abstract_controller/rendering.rb:97:in `render'
actionpack (4.0.4) lib/action_controller/metal/rendering.rb:16:in `render'
actionpack (4.0.4) lib/action_controller/metal/instrumentation.rb:41:in `block (2 levels) in render'
activesupport (4.0.4) lib/active_support/core_ext/benchmark.rb:12:in `block in ms'
/Users/mmahalwy/.rvm/rubies/ruby-2.1.1/lib/ruby/2.1.0/benchmark.rb:294:in `realtime'
activesupport (4.0.4) lib/active_support/core_ext/benchmark.rb:12:in `ms'
actionpack (4.0.4) lib/action_controller/metal/instrumentation.rb:41:in `block in render'
actionpack (4.0.4) lib/action_controller/metal/instrumentation.rb:84:in `cleanup_view_runtime'
activerecord (4.0.4) lib/active_record/railties/controller_runtime.rb:25:in `cleanup_view_runtime'
actionpack (4.0.4) lib/action_controller/metal/instrumentation.rb:40:in `render'
actionpack (4.0.4) lib/action_controller/metal/implicit_render.rb:10:in `default_render'
actionpack (4.0.4) lib/action_controller/metal/implicit_render.rb:5:in `send_action'
actionpack (4.0.4) lib/abstract_controller/base.rb:189:in `process_action'
actionpack (4.0.4) lib/action_controller/metal/rendering.rb:10:in `process_action'
actionpack (4.0.4) lib/abstract_controller/callbacks.rb:18:in `block in process_action'
activesupport (4.0.4) lib/active_support/callbacks.rb:403:in `_run__2314247768823616456__process_action__callbacks'
activesupport (4.0.4) lib/active_support/callbacks.rb:80:in `run_callbacks'
actionpack (4.0.4) lib/abstract_controller/callbacks.rb:17:in `process_action'
actionpack (4.0.4) lib/action_controller/metal/rescue.rb:29:in `process_action'
actionpack (4.0.4) lib/action_controller/metal/instrumentation.rb:31:in `block in process_action'
activesupport (4.0.4) lib/active_support/notifications.rb:159:in `block in instrument'
activesupport (4.0.4) lib/active_support/notifications/instrumenter.rb:20:in `instrument'
activesupport (4.0.4) lib/active_support/notifications.rb:159:in `instrument'
actionpack (4.0.4) lib/action_controller/metal/instrumentation.rb:30:in `process_action'
actionpack (4.0.4) lib/action_controller/metal/params_wrapper.rb:250:in `process_action'
activerecord (4.0.4) lib/active_record/railties/controller_runtime.rb:18:in `process_action'
actionpack (4.0.4) lib/abstract_controller/base.rb:136:in `process'
actionpack (4.0.4) lib/abstract_controller/rendering.rb:44:in `process'
actionpack (4.0.4) lib/action_controller/metal.rb:195:in `dispatch'
actionpack (4.0.4) lib/action_controller/metal/rack_delegation.rb:13:in `dispatch'
actionpack (4.0.4) lib/action_controller/metal.rb:231:in `block in action'
actionpack (4.0.4) lib/action_dispatch/routing/route_set.rb:80:in `call'
actionpack (4.0.4) lib/action_dispatch/routing/route_set.rb:80:in `dispatch'
actionpack (4.0.4) lib/action_dispatch/routing/route_set.rb:48:in `call'
actionpack (4.0.4) lib/action_dispatch/journey/router.rb:71:in `block in call'
actionpack (4.0.4) lib/action_dispatch/journey/router.rb:59:in `each'
actionpack (4.0.4) lib/action_dispatch/journey/router.rb:59:in `call'
actionpack (4.0.4) lib/action_dispatch/routing/route_set.rb:674:in `call'
warden (1.2.3) lib/warden/manager.rb:35:in `block in call'
warden (1.2.3) lib/warden/manager.rb:34:in `catch'
warden (1.2.3) lib/warden/manager.rb:34:in `call'
rack (1.5.2) lib/rack/etag.rb:23:in `call'
rack (1.5.2) lib/rack/conditionalget.rb:25:in `call'
rack (1.5.2) lib/rack/head.rb:11:in `call'
actionpack (4.0.4) lib/action_dispatch/middleware/params_parser.rb:27:in `call'
actionpack (4.0.4) lib/action_dispatch/middleware/flash.rb:241:in `call'
rack (1.5.2) lib/rack/session/abstract/id.rb:225:in `context'
rack (1.5.2) lib/rack/session/abstract/id.rb:220:in `call'
actionpack (4.0.4) lib/action_dispatch/middleware/cookies.rb:486:in `call'
activerecord (4.0.4) lib/active_record/query_cache.rb:36:in `call'
activerecord (4.0.4) lib/active_record/connection_adapters/abstract/connection_pool.rb:626:in `call'
activerecord (4.0.4) lib/active_record/migration.rb:373:in `call'
actionpack (4.0.4) lib/action_dispatch/middleware/callbacks.rb:29:in `block in call'
activesupport (4.0.4) lib/active_support/callbacks.rb:373:in `_run__4039488794408656604__call__callbacks'
activesupport (4.0.4) lib/active_support/callbacks.rb:80:in `run_callbacks'
actionpack (4.0.4) lib/action_dispatch/middleware/callbacks.rb:27:in `call'
actionpack (4.0.4) lib/action_dispatch/middleware/reloader.rb:64:in `call'
actionpack (4.0.4) lib/action_dispatch/middleware/remote_ip.rb:76:in `call'
actionpack (4.0.4) lib/action_dispatch/middleware/debug_exceptions.rb:17:in `call'
actionpack (4.0.4) lib/action_dispatch/middleware/show_exceptions.rb:30:in `call'
railties (4.0.4) lib/rails/rack/logger.rb:38:in `call_app'
railties (4.0.4) lib/rails/rack/logger.rb:20:in `block in call'
activesupport (4.0.4) lib/active_support/tagged_logging.rb:68:in `block in tagged'
activesupport (4.0.4) lib/active_support/tagged_logging.rb:26:in `tagged'
activesupport (4.0.4) lib/active_support/tagged_logging.rb:68:in `tagged'
railties (4.0.4) lib/rails/rack/logger.rb:20:in `call'
actionpack (4.0.4) lib/action_dispatch/middleware/request_id.rb:21:in `call'
rack (1.5.2) lib/rack/methodoverride.rb:21:in `call'
rack (1.5.2) lib/rack/runtime.rb:17:in `call'
activesupport (4.0.4) lib/active_support/cache/strategy/local_cache.rb:83:in `call'
rack (1.5.2) lib/rack/lock.rb:17:in `call'
actionpack (4.0.4) lib/action_dispatch/middleware/static.rb:64:in `call'
rack (1.5.2) lib/rack/sendfile.rb:112:in `call'
railties (4.0.4) lib/rails/engine.rb:511:in `call'
railties (4.0.4) lib/rails/application.rb:97:in `call'
passenger (4.0.38) lib/phusion_passenger/rack/thread_handler_extension.rb:77:in `process_request'
passenger (4.0.38) lib/phusion_passenger/request_handler/thread_handler.rb:142:in `accept_and_process_next_request'
passenger (4.0.38) lib/phusion_passenger/request_handler/thread_handler.rb:110:in `main_loop'
passenger (4.0.38) lib/phusion_passenger/request_handler.rb:448:in `block (3 levels) in start_threads'

我的style.scss.css文件:

@import 'bootstrap';

我已经加入了javascript文件，但是没有任何变化。不知道为什么会这样，有什么想法吗？

更新
找到了一个临时解决方案: https://github.com/twbs/bootstrap-sass/issues/560
只需通过将其添加到gem文件中来强制链轮版本: gem 'sprockets', '=2.11.0' #force for now现在可以解决它

最佳答案

我将Rails从4.0.3升级到4.0.4后也遇到了同样的错误。

要解决解决此问题，只需添加

gem "sass-rails", "~> 4.0.2"

到您的Gemfile，然后

bundle install

最后 重新启动Rails服务器

然后在Rails 4.0.4中进行编程

关于ruby-on-rails - 将Bootstrap导入rails时，nil:NilClass的未定义方法 `environment'，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/22426698/

文章推荐： powershell - 相当于 PowerShell 中的 "cd %programfiles%"？

文章推荐： mustache - 如果参数是特定值，请使用 mustache js 检查

文章推荐： shell - 如何在unix中每行末尾添加文本

文章推荐： ruby-on-rails - 检查 DateTime 值是今天、明天还是之后

ruby-on-rails - rails : What is `sanitize` in Rails?
sanitize 是什么意思在 Rails 中是什么意思？我正在阅读 CanCanCan 的文档.它说: When using strong_parameters or Rails 4+, you
ruby-on-rails - Rails on Rails 将其提升到一个新的水平
在过去的几个月里，我感觉自己对 Ruby on Rails (RoR) 开发的了解达到了极限。我为大/小客户和 friend /爱好项目开发了大大小小的应用程序。我知道如何开发这些应用程序，但开始感觉
ruby-on-rails - rails : How do I make my rails project a Hexagonal rails project?
我昨天参加了一个关于扩展 Rails 的聚会，其中一个主题是 Hexagonal Rails。然而，我只做了一年的 Rails，对 MVC 结构非常满意(也许太舒服了)，所以我不太了解适配器和消息队列
ruby-on-rails - 改善缓慢的 Rails 启动时间(rails 控制台、rails 服务器)
我使用多个 Rails 应用程序，一些在 Rails 3.2/Ruby 2.0 上，一些在 Rails 2.3/Ruby 1.8.7 上。他们的共同点是，随着他们的成长和添加更多的依赖项/ gem
ruby-on-rails - rails 6 : Rails not defined
这个问题在这里已经有了答案: Using Rails-UJS in JS modules (Rails 6 with webpacker) (5 个答案) 关闭 3 年前。我正在尝试使用 UJS
ruby-on-rails - 我应该如何升级 Rails 应用程序以使用最新版本的 Rails
我正在开发一个当前使用 Rails 1.2 的 Rails 应用程序，所以我现在离最新的稳定版本(Rails 2.3)还有很长的路要走。我应该如何进行迁移到更新版本的 Rails 的过程？我应该一
ruby-on-rails - rails : backbone-on-rails gem-
尝试按照 Ryan Bates Backbone.js 教程构建抽奖应用程序，但我已经遇到了第一段代码的问题。在 application.js 的 init 函数中，他初始化了 Raffler 路由的
ruby-on-rails - rails : Or & and in Rails ActiveRecord where clause
我正在使用 Rails 3.2 并且我有一个数据库表，我想在其中找到符合以下条件的所有行: a = true and b = true and ( 0 true, :b =>
ruby-on-rails - Rails - 跳过子类的 rails 验证
我有一个用户类和一个联系人，其中联系人是用户的子类。这两个类都存储在用户表中。我的联系人可能有也可能没有电子邮件地址，而我的用户需要一个电子邮件地址(我的用户模型定义中有 validates_pre
ruby-on-rails - 脚本/rails 与 rails
我正在编写一个教程，我在其中演示了一些 rails 命令。在我的机器上 rails和 script/rails两者都同样有效。有“首选”形式吗？两者中哪一个更普遍？最佳答案当您运行 rails 时
ruby-on-rails - rails 4，elasticsearch-rails
我正在寻找有关通过我的应用程序前进的最佳方式的建议，这是我首次开始集成Elasticsearch。我是一名初学者，但是热衷于深入研究，以便原谅任何明显的错误! 我遵循了http://www.sitep
ruby-on-rails - Rails 真的很奇怪启动 Rails 服务器的问题
我刚刚用 Rails new 启动了一个新的 Rails 应用程序，将默认数据库设置更改为 PostgresSQL。我用 bin/rails s 启动服务器，结果很奇怪 2016-04-21 05:0
ruby-on-rails - Rails - 如果不是数组 rails，则将字符串转换为数组的好方法
我收到一个参数并希望它是这样的字符串: "abc,efg" 或者像这样的数组 ["abc","efg"] 在第一种情况下，我想将它转换成一个数组，什么是好的方法？这是我的想法 if params[:
ruby-on-rails - Rails 真的很奇怪启动 Rails 服务器的问题
我刚刚用 Rails new 启动了一个新的 Rails 应用程序，将默认数据库设置更改为 PostgresSQL。我用 bin/rails s 启动服务器，结果很奇怪 2016-04-21 05:0
ruby-on-rails - Rails - 如果不是数组 rails，则将字符串转换为数组的好方法
我收到一个参数并希望它是这样的字符串: "abc,efg" 或者像这样的数组 ["abc","efg"] 在第一种情况下，我想将它转换成一个数组，什么是好的方法？这是我的想法 if params[:
ruby-on-rails - Rails 4 railties 的可执行文件 "rails"与 rails 冲突
我有 Rails 4，这是我的默认版本(我仍然希望它是)。但我不想在我的电脑上添加 rails 3.2。在以下命令中:gem install rails -v 3.2.16 我有这个警告: railt
ruby-on-rails - rails + sheevaplug = rails 家庭开发服务器等等
您好，我想使用 Sheevaplug 构建一个“Rails Brick”来自 Marvell(操作系统是开箱即用的 Ubuntu，但您可以在其上安装其他发行版)。它将成为家庭服务器和静音、低成本(99
ruby-on-rails - Rails -- 从 Rails 控制台发送所有未接受的邀请
我需要能够从 Rails 控制台发送我的 Rails 应用程序的 Postgres 数据库中所有未接受的邀请。 (我有一个名为 Invitations 的表，其中包含一个名为 accepted 的 b
ruby-on-rails - Rspec rails on rails 验证
validate :cannot_modify_if_locked, on: :update def cannot_modify_if_locked if self.locked erro
ruby-on-rails - Rails 路由语法 - 从 rails 2 到 rails 3
我正在学习教程(学习 Rails 播客)，需要更改以下路由语法，以便它与 Rails 3.0 兼容。谁能帮忙？ map.view_page ':name', :controller => 'viewe

行者123

个人简介

我是一名优秀的程序员,十分优秀！

作者热门文章

滴滴打车优惠券免费领取

全站热门文章

首页

博学

6Ren·AI

商城

ruby-on-rails - 将Bootstrap导入rails时，nil:NilClass的未定义方法 `environment'