- html - 出于某种原因,IE8 对我的 Sass 文件中继承的 html5 CSS 不友好?
- JMeter 在响应断言中使用 span 标签的问题
- html - 在 :hover and :active? 上具有不同效果的 CSS 动画
- html - 相对于居中的 html 内容固定的 CSS 重复背景?
我从未使用过 ruby,我想我会试一试。安装似乎进行得很顺利(我认为)。在我使用 rails server
创建服务器并设置路由后,问题就开始了,这样新项目就会出现,而不是 ruby 欢迎屏幕。它产生的错误是
uninitialized constant WelcomeController
我是这样在路由 Controller 中设置路径的
Rails.application.routes.draw do
root 'welcome#index'
我错过了一步吗?我正在使用 installrails.com 中的说明在 Windows 7 上设置 Rails
这里是请求的完整跟踪
app/assets/javascripts/application.js:15 sprockets (3.6.0)
lib/sprockets/resolve.rb:64:in `resolve!' sprockets (3.6.0)
lib/sprockets/directive_processor.rb:399:in `resolve' sprockets
(3.6.0) lib/sprockets/directive_processor.rb:207:in
`process_require_directive' sprockets (3.6.0)
lib/sprockets/directive_processor.rb:180:in `block in
process_directives' sprockets (3.6.0)
lib/sprockets/directive_processor.rb:178:in `each' sprockets (3.6.0)
lib/sprockets/directive_processor.rb:178:in `process_directives'
sprockets (3.6.0) lib/sprockets/directive_processor.rb:83:in `_call'
sprockets (3.6.0) lib/sprockets/directive_processor.rb:68:in `call'
sprockets (3.6.0) lib/sprockets/processor_utils.rb:75:in
`call_processor' sprockets (3.6.0)
lib/sprockets/processor_utils.rb:57:in `block in call_processors'
sprockets (3.6.0) lib/sprockets/processor_utils.rb:56:in
`reverse_each' sprockets (3.6.0)
lib/sprockets/processor_utils.rb:56:in `call_processors' sprockets
(3.6.0) lib/sprockets/loader.rb:134:in `load_from_unloaded' sprockets
(3.6.0) lib/sprockets/loader.rb:60:in `block in load' sprockets
(3.6.0) lib/sprockets/loader.rb:317:in
`fetch_asset_from_dependency_cache' sprockets (3.6.0)
lib/sprockets/loader.rb:44:in `load' sprockets (3.6.0)
lib/sprockets/cached_environment.rb:20:in `block in initialize'
sprockets (3.6.0) lib/sprockets/cached_environment.rb:47:in `yield'
sprockets (3.6.0) lib/sprockets/cached_environment.rb:47:in `load'
sprockets (3.6.0) lib/sprockets/bundle.rb:23:in `block in call'
sprockets (3.6.0) lib/sprockets/utils.rb:183:in `dfs' sprockets
(3.6.0) lib/sprockets/bundle.rb:24:in `call' sprockets (3.6.0)
lib/sprockets/processor_utils.rb:75:in `call_processor' sprockets
(3.6.0) lib/sprockets/processor_utils.rb:57:in `block in
call_processors' sprockets (3.6.0)
lib/sprockets/processor_utils.rb:56:in `reverse_each' sprockets
(3.6.0) lib/sprockets/processor_utils.rb:56:in `call_processors'
sprockets (3.6.0) lib/sprockets/loader.rb:134:in `load_from_unloaded'
sprockets (3.6.0) lib/sprockets/loader.rb:60:in `block in load'
sprockets (3.6.0) lib/sprockets/loader.rb:317:in
`fetch_asset_from_dependency_cache' sprockets (3.6.0)
lib/sprockets/loader.rb:44:in `load' sprockets (3.6.0)
lib/sprockets/cached_environment.rb:20:in `block in initialize'
sprockets (3.6.0) lib/sprockets/cached_environment.rb:47:in `yield'
sprockets (3.6.0) lib/sprockets/cached_environment.rb:47:in `load'
sprockets (3.6.0) lib/sprockets/base.rb:66:in `find_asset' sprockets
(3.6.0) lib/sprockets/base.rb:73:in `find_all_linked_assets' sprockets
(3.6.0) lib/sprockets/manifest.rb:142:in `block in find' sprockets
(3.6.0) lib/sprockets/legacy.rb:114:in `block (2 levels) in
logical_paths' sprockets (3.6.0) lib/sprockets/path_utils.rb:223:in
`block in stat_tree' sprockets (3.6.0)
lib/sprockets/path_utils.rb:207:in `block in stat_directory' sprockets
(3.6.0) lib/sprockets/path_utils.rb:204:in `each' sprockets (3.6.0)
lib/sprockets/path_utils.rb:204:in `stat_directory' sprockets (3.6.0)
lib/sprockets/path_utils.rb:222:in `stat_tree' sprockets (3.6.0)
lib/sprockets/legacy.rb:105:in `each' sprockets (3.6.0)
lib/sprockets/legacy.rb:105:in `block in logical_paths' sprockets
(3.6.0) lib/sprockets/legacy.rb:104:in `each' sprockets (3.6.0)
lib/sprockets/legacy.rb:104:in `logical_paths' sprockets (3.6.0)
lib/sprockets/manifest.rb:140:in `find' sprockets-rails (3.0.4)
lib/sprockets/railtie.rb:49:in `each' sprockets-rails (3.0.4)
lib/sprockets/railtie.rb:49:in `map' sprockets-rails (3.0.4)
lib/sprockets/railtie.rb:49:in `precompiled_assets' sprockets-rails
(3.0.4) lib/sprockets/railtie.rb:34:in `asset_precompiled?'
sprockets-rails (3.0.4) lib/sprockets/railtie.rb:214:in `block (3
levels) in <class:Railtie>' sprockets-rails (3.0.4)
lib/sprockets/rails/helper.rb:345:in `call' sprockets-rails (3.0.4)
lib/sprockets/rails/helper.rb:345:in `precompiled?' sprockets-rails
(3.0.4) lib/sprockets/rails/helper.rb:349:in
`raise_unless_precompiled_asset' sprockets-rails (3.0.4)
lib/sprockets/rails/helper.rb:334:in `find_debug_asset'
sprockets-rails (3.0.4) lib/sprockets/rails/helper.rb:216:in `block in
lookup_debug_asset' sprockets-rails (3.0.4)
lib/sprockets/rails/helper.rb:229:in `block in resolve_asset'
sprockets-rails (3.0.4) lib/sprockets/rails/helper.rb:228:in `each'
sprockets-rails (3.0.4) lib/sprockets/rails/helper.rb:228:in `detect'
sprockets-rails (3.0.4) lib/sprockets/rails/helper.rb:228:in
`resolve_asset' sprockets-rails (3.0.4)
lib/sprockets/rails/helper.rb:215:in `lookup_debug_asset'
sprockets-rails (3.0.4) lib/sprockets/rails/helper.rb:157:in `block in
stylesheet_link_tag' sprockets-rails (3.0.4)
lib/sprockets/rails/helper.rb:156:in `map' sprockets-rails (3.0.4)
lib/sprockets/rails/helper.rb:156:in `stylesheet_link_tag'
app/views/layouts/application.html.erb:5:in
`_app_views_layouts_application_html_erb__347772551_45585852'
actionview (4.2.6) lib/action_view/template.rb:145:in `block in
render' activesupport (4.2.6)
lib/active_support/notifications.rb:166:in `instrument' actionview
(4.2.6) lib/action_view/template.rb:333:in `instrument' actionview
(4.2.6) lib/action_view/template.rb:143:in `render' actionview (4.2.6)
lib/action_view/renderer/template_renderer.rb:66:in
`render_with_layout' actionview (4.2.6)
lib/action_view/renderer/template_renderer.rb:52:in `render_template'
actionview (4.2.6) lib/action_view/renderer/template_renderer.rb:14:in
`render' actionview (4.2.6) lib/action_view/renderer/renderer.rb:46:in
`render_template' actionview (4.2.6)
lib/action_view/renderer/renderer.rb:27:in `render' actionview (4.2.6)
lib/action_view/rendering.rb:100:in `_render_template' actionpack
(4.2.6) lib/action_controller/metal/streaming.rb:217:in
`_render_template' actionview (4.2.6)
lib/action_view/rendering.rb:83:in `render_to_body' actionpack (4.2.6)
lib/action_controller/metal/rendering.rb:32:in `render_to_body'
actionpack (4.2.6) lib/action_controller/metal/renderers.rb:37:in
`render_to_body' actionpack (4.2.6)
lib/abstract_controller/rendering.rb:25:in `render' actionpack (4.2.6)
lib/action_controller/metal/rendering.rb:16:in `render' actionpack
(4.2.6) lib/action_controller/metal/instrumentation.rb:44:in `block (2
levels) in render' activesupport (4.2.6)
lib/active_support/core_ext/benchmark.rb:12:in `block in ms'
c:/RailsInstaller/Ruby2.2.0/lib/ruby/2.2.0/benchmark.rb:303:in
`realtime' activesupport (4.2.6)
lib/active_support/core_ext/benchmark.rb:12:in `ms' actionpack (4.2.6)
lib/action_controller/metal/instrumentation.rb:44:in `block in render'
actionpack (4.2.6)
lib/action_controller/metal/instrumentation.rb:87:in
`cleanup_view_runtime' activerecord (4.2.6)
lib/active_record/railties/controller_runtime.rb:25:in
`cleanup_view_runtime' actionpack (4.2.6)
lib/action_controller/metal/instrumentation.rb:43:in `render'
actionpack (4.2.6)
lib/action_controller/metal/implicit_render.rb:10:in `default_render'
actionpack (4.2.6) lib/action_controller/metal/implicit_render.rb:5:in
`send_action' actionpack (4.2.6)
lib/abstract_controller/base.rb:198:in `process_action' actionpack
(4.2.6) lib/action_controller/metal/rendering.rb:10:in
`process_action' actionpack (4.2.6)
lib/abstract_controller/callbacks.rb:20:in `block in process_action'
activesupport (4.2.6) lib/active_support/callbacks.rb:117:in `call'
activesupport (4.2.6) lib/active_support/callbacks.rb:117:in `call'
activesupport (4.2.6) lib/active_support/callbacks.rb:555:in `block (2
levels) in compile' activesupport (4.2.6)
lib/active_support/callbacks.rb:505:in `call' activesupport (4.2.6)
lib/active_support/callbacks.rb:505:in `call' activesupport (4.2.6)
lib/active_support/callbacks.rb:92:in `__run_callbacks__'
activesupport (4.2.6) lib/active_support/callbacks.rb:778:in
`_run_process_action_callbacks' activesupport (4.2.6)
lib/active_support/callbacks.rb:81:in `run_callbacks' actionpack
(4.2.6) lib/abstract_controller/callbacks.rb:19:in `process_action'
actionpack (4.2.6) lib/action_controller/metal/rescue.rb:29:in
`process_action' actionpack (4.2.6)
lib/action_controller/metal/instrumentation.rb:32:in `block in
process_action' activesupport (4.2.6)
lib/active_support/notifications.rb:164:in `block in instrument'
activesupport (4.2.6)
lib/active_support/notifications/instrumenter.rb:20:in `instrument'
activesupport (4.2.6) lib/active_support/notifications.rb:164:in
`instrument' actionpack (4.2.6)
lib/action_controller/metal/instrumentation.rb:30:in `process_action'
actionpack (4.2.6)
lib/action_controller/metal/params_wrapper.rb:250:in `process_action'
activerecord (4.2.6)
lib/active_record/railties/controller_runtime.rb:18:in
`process_action' actionpack (4.2.6)
lib/abstract_controller/base.rb:137:in `process' actionview (4.2.6)
lib/action_view/rendering.rb:30:in `process' actionpack (4.2.6)
lib/action_controller/metal.rb:196:in `dispatch' actionpack (4.2.6)
lib/action_controller/metal/rack_delegation.rb:13:in `dispatch'
actionpack (4.2.6) lib/action_controller/metal.rb:237:in `block in
action' actionpack (4.2.6)
lib/action_dispatch/routing/route_set.rb:74:in `call' actionpack
(4.2.6) lib/action_dispatch/routing/route_set.rb:74:in `dispatch'
actionpack (4.2.6) lib/action_dispatch/routing/route_set.rb:43:in
`serve' actionpack (4.2.6) lib/action_dispatch/journey/router.rb:43:in
`block in serve' actionpack (4.2.6)
lib/action_dispatch/journey/router.rb:30:in `each' actionpack (4.2.6)
lib/action_dispatch/journey/router.rb:30:in `serve' actionpack (4.2.6)
lib/action_dispatch/routing/route_set.rb:817:in `call' rack (1.6.4)
lib/rack/etag.rb:24:in `call' rack (1.6.4)
lib/rack/conditionalget.rb:25:in `call' rack (1.6.4)
lib/rack/head.rb:13:in `call' actionpack (4.2.6)
lib/action_dispatch/middleware/params_parser.rb:27:in `call'
actionpack (4.2.6) lib/action_dispatch/middleware/flash.rb:260:in
`call' rack (1.6.4) lib/rack/session/abstract/id.rb:225:in `context'
rack (1.6.4) lib/rack/session/abstract/id.rb:220:in `call' actionpack
(4.2.6) lib/action_dispatch/middleware/cookies.rb:560:in `call'
activerecord (4.2.6) lib/active_record/query_cache.rb:36:in `call'
activerecord (4.2.6)
lib/active_record/connection_adapters/abstract/connection_pool.rb:653:in
`call' activerecord (4.2.6) lib/active_record/migration.rb:377:in
`call' actionpack (4.2.6)
lib/action_dispatch/middleware/callbacks.rb:29:in `block in call'
activesupport (4.2.6) lib/active_support/callbacks.rb:88:in
`__run_callbacks__' activesupport (4.2.6)
lib/active_support/callbacks.rb:778:in `_run_call_callbacks'
activesupport (4.2.6) lib/active_support/callbacks.rb:81:in
`run_callbacks' actionpack (4.2.6)
lib/action_dispatch/middleware/callbacks.rb:27:in `call' actionpack
(4.2.6) lib/action_dispatch/middleware/reloader.rb:73:in `call'
actionpack (4.2.6) lib/action_dispatch/middleware/remote_ip.rb:78:in
`call' actionpack (4.2.6)
lib/action_dispatch/middleware/debug_exceptions.rb:17:in `call'
web-console (2.3.0) lib/web_console/middleware.rb:28:in `block in
call' web-console (2.3.0) lib/web_console/middleware.rb:18:in `catch'
web-console (2.3.0) lib/web_console/middleware.rb:18:in `call'
actionpack (4.2.6)
lib/action_dispatch/middleware/show_exceptions.rb:30:in `call'
railties (4.2.6) lib/rails/rack/logger.rb:38:in `call_app' railties
(4.2.6) lib/rails/rack/logger.rb:20:in `block in call' activesupport
(4.2.6) lib/active_support/tagged_logging.rb:68:in `block in tagged'
activesupport (4.2.6) lib/active_support/tagged_logging.rb:26:in
`tagged' activesupport (4.2.6)
lib/active_support/tagged_logging.rb:68:in `tagged' railties (4.2.6)
lib/rails/rack/logger.rb:20:in `call' actionpack (4.2.6)
lib/action_dispatch/middleware/request_id.rb:21:in `call' rack (1.6.4)
lib/rack/methodoverride.rb:22:in `call' rack (1.6.4)
lib/rack/runtime.rb:18:in `call' activesupport (4.2.6)
lib/active_support/cache/strategy/local_cache_middleware.rb:28:in
`call' rack (1.6.4) lib/rack/lock.rb:17:in `call' actionpack (4.2.6)
lib/action_dispatch/middleware/static.rb:120:in `call' rack (1.6.4)
lib/rack/sendfile.rb:113:in `call' railties (4.2.6)
lib/rails/engine.rb:518:in `call' railties (4.2.6)
lib/rails/application.rb:165:in `call' rack (1.6.4)
lib/rack/lock.rb:17:in `call' rack (1.6.4)
lib/rack/content_length.rb:15:in `call' rack (1.6.4)
lib/rack/handler/webrick.rb:88:in `service'
c:/RailsInstaller/Ruby2.2.0/lib/ruby/2.2.0/webrick/httpserver.rb:138:in
`service'
c:/RailsInstaller/Ruby2.2.0/lib/ruby/2.2.0/webrick/httpserver.rb:94:in
`run'
c:/RailsInstaller/Ruby2.2.0/lib/ruby/2.2.0/webrick/server.rb:294:in
`block in start_thread'
最佳答案
此错误可能是由于 app/controllers
中缺少定义 WelcomeController
的 welcome_controller.rb
文件造成的。
此文档可能有助于入门: http://guides.rubyonrails.org/action_controller_overview.html#controller-naming-convention
关于ruby-on-rails - ruby on rails 入门的麻烦,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/37647133/
以下是一个非常简单的ruby服务器。 require 'socket' local_socket = Socket.new(:INET, :STREAM) local_addr = Socket.
我正在使用 OS X(使用 bash),并且是 unix 的新手。我想知道是否可以修改一些文件以便运行 ruby 程序,我不需要“ruby file.rb”,而是可以运行“ruby.rb”。 有理
我在用 Ruby 替换字符串时遇到一些问题。 我的原文:人之所为不如兽之所为。 我想替换为:==What== human does is not like ==what== animal does.
我想在一个循环中从 Ruby 脚本做这样的事情: 写一个文件a.rb(每次迭代都会改变) 执行系统(ruby 'a.rb') a.rb 将带有结果的字符串写入文件“results” a.rb 完成并且
我的问题是尝试创建一个本地服务器,以便我可以理解由我的新团队开发的应用程序。我的问题是我使用的是 Ruby 2.3.3,而 Gemfile 需要 2.3.1。我无法编辑 Gemfile,因为我被告知很
我有一个使用 GLI 框架用 Ruby 编写的命令行实用程序。我想在我的主目录中配置我的命令行实用程序,使用 Ruby 本身作为 DSL 来处理它(类似于 Gemfile 或 Rakefile)。 我
我的 Rails 应用 Controller 中有这段代码: def delete object = model.datamapper_class.first(:sourced_id =>
我正在寻找的解析器应该: 对 Ruby 解析友好, 规则设计优雅, 产生用户友好的解析错误, 用户文档的数量应该比计算器示例多, UPD:允许在编写语法时省略可选的空格。 快速解析不是一个重要的特性。
我刚开始使用 Ruby,听说有一种“Ruby 方式”编码。除了 Ruby on Rails 之外,还有哪些项目适合学习并被认可且设计良好? 最佳答案 Prawn被明确地创建为不仅是一个该死的好 PDF
我知道之前有人问过类似的问题,但是我该如何构建一个无需在前面输入“ruby”就可以在终端中运行的 Ruby 文件呢? 这里的最终目标是创建一个命令行工具包类型的东西。现在,为了执行我希望用户能够执行的
例如哈希a是{:name=>'mike',:age=>27,:gender=>'male'}哈希 b 是 {:name=>'mike'} 我想知道是否有更好的方法来判断 b 哈希是否在 a 哈希内,而
我是一名决定学习 Ruby 和 Ruby on Rails 的 ASP.NET MVC 开发人员。我已经有所了解并在 RoR 上创建了一个网站。在 ASP.NET MVC 上开发,我一直使用三层架构:
最近我看到 Gary Bernhardt 展示了他用来在 vim 中执行 Ruby 代码的 vim 快捷方式。捷径是 :map ,t :w\|:!ruby %. 似乎这个方法总是执行系统 Rub
在为 this question about Blue Ruby 选择的答案中,查克说: All of the current Ruby implementations are compiled to
我有一个 Ruby 数组 > list = Request.find_all_by_artist("Metallica").map(&:song) => ["Nothing else Matters"
我在四舍五入时遇到问题。我有一个 float ,我想将其四舍五入到小数点后的百分之一。但是,我只能使用 .round ,它基本上将它变成一个 int,意思是 2.34.round # => 2. 有没
我使用 ruby on rails 编写了一个小型 Web 应用程序,它的主要目的是上传、存储和显示来自 xml(文件最多几 MB)文件的结果。运行大约 2 个月后,我注意到 mongrel 进程
我们如何用 Ruby 转换像这样的字符串: 𝑙𝑎𝑡𝑜𝑟𝑟𝑒 收件人: Latorre 最佳答案 s = "𝑙𝑎𝑡𝑜𝑟𝑟𝑒" => "𝑙𝑎𝑡𝑜𝑟𝑟𝑒" s.u
通过 ruby monk 时,他们偶尔会从左侧字段中抛出一段语法不熟悉的代码: def compute(xyz) return nil unless xyz xyz.map {|a,
不确定我做错了什么,但我似乎弄错了。 问题是,给你一串空格分隔的数字,你必须返回最大和最小的数字。 注意:所有数字都是有效的 Int32,不需要验证它们。输入字符串中始终至少有一个数字。输出字符串必须
我是一名优秀的程序员,十分优秀!