Databases
StackOverflow2013
Postsdbo
POTry to print "Hello World" on webpage but something happened
 

Note that there are some explanatory texts on larger screens.

plurals
  1. POTry to print "Hello World" on webpage but something happened
    primarykey
    data
    text
    <p>I am a beginner in Ruby on Rails. Today, I want to have my first try to print "Hello World" on webpage but something happened.</p> <p>First of all,I create a "project" folder by "mkdir project" and then create new rails project in this folder by "rails new demo".</p> <p>Next,I type "rails server" and website shows good.</p> <p>Then,I type "rails generate controller welcome" and put this code</p> <pre><code>Demo::Application.routes.draw do get "welcome/say_hello" =&gt; "welcome#say" # ... end </code></pre> <p>into config/routes.rb .</p> <p>Then, I run "rails server" again and some problem happened like below.</p> <pre><code>C:\project\demo&gt;rails s =&gt; Booting WEBrick =&gt; Rails 4.0.0 application starting in development on http://localhost:3000/ =&gt; Run `rails server -h` for more startup options =&gt; Ctrl-C to shutdown server Exiting C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/activesupport-4.0.0/lib/active_support/dependencies.rb:222:in `load': C:/project/demo/config/routes.rb:59: syntax error, unexpected keyword_end, expecting $end (SyntaxError) from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/activesupport4.0.0/lib/active_support/dependencies.rb:222:in `block in load' from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/activesupport4.0.0/lib/active_support/dependencies.rb:213:in `load_dependency' from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/activesupport4.0.0/lib/active_support/dependencies.rb:222:in `load' from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/railties-4.0.0/lib/rails/application/routes_reloader.rb:40:in `block in load_paths' from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/railties-4.0.0/lib/rails/application/routes_reloader.rb:40:in `each' from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/railties-4.0.0/lib/rails/application/routes_reloader.rb:40:in `load_paths' from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/railties-4.0.0/lib/rails/application/routes_reloader.rb:16:in `reload!' from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/railties-4.0.0/lib/rails/application/routes_reloader.rb:26:in `block in updater' from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/activesupport-4.0.0/lib/active_support/file_update_checker.rb:75:in `call' from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/activesupport-4.0.0/lib/active_support/file_update_checker.rb:75:in `execute' from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/railties-4.0.0/lib/rails/application/routes_reloader.rb:27:in `updater' from C:65535:in `execute_if_updated' from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/railties-4.0.0/lib/rails/application/finisher.rb:69:in `block in &lt;module:Finisher&gt;' from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/railties-4.0.0/lib/rails/initializable.rb:30:in `instance_exec' from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/railties-4.0.0/lib/rails/initializable.rb:30:in `run' from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/railties-4.0.0/lib/rails/initializable.rb:55:in `block in run_initializers' from C:/RailsInstaller/Ruby1.9.3/lib/ruby/1.9.1/tsort.rb:150:in `block intsort_each' from C:/RailsInstaller/Ruby1.9.3/lib/ruby/1.9.1/tsort.rb:183:in `block (2 levels)in each_strongly_connected_component' from C:/RailsInstaller/Ruby1.9.3/lib/ruby/1.9.1/tsort.rb:219:in `each_strongly_connected_component_from' from C:/RailsInstaller/Ruby1.9.3/lib/ruby/1.9.1/tsort.rb:182:in `block in each_strongly_connected_component' from C:/RailsInstaller/Ruby1.9.3/lib/ruby/1.9.1/tsort.rb:180:in `each' from C:/RailsInstaller/Ruby1.9.3/lib/ruby/1.9.1/tsort.rb:180:in `each_strongly_connected_component' from C:/RailsInstaller/Ruby1.9.3/lib/ruby/1.9.1/tsort.rb:148:in `tsort_each' from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/railties-4.0.0/lib/rails/initializable.rb:54:in `run_initializers' from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/railties-4.0.0/lib/rails/application.rb:215:in `initialize!' from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/railties-4.0.0/lib/rails/railtie/configurable.rb:30:in `method_missing' from C:/project/demo/config/environment.rb:5:in `&lt;top (required)&gt;' from C:/project/demo/config.ru:3:in `require' from C:/project/demo/config.ru:3:in `block in &lt;main&gt;' from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/rack-1.5.2/lib/rack/builder.rb:55:in `instance_eval' from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/rack-1.5.2/lib/rack/builder.rb:55:in `initialize' from C:/project/demo/config.ru:in `new' from C:/project/demo/config.ru:in `&lt;main&gt;' from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/rack-1.5.2/lib/rack/builder.rb:49:in `eval' from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/rack-1.5.2/lib/rack/builder.rb:49:in `new_from_string' from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/rack-1.5.2/lib/rack/builder.rb:40:in `parse_file' from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/rack-1.5.2/lib/rack/server.rb:277:in `build_app_and_options_from_config' from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/rack-1.5.2/lib/rack/server.rb:199:in `app' from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/railties-4.0.0/lib/rails/commands/server.rb:48:in `app' from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/rack-1.5.2/lib/rack/server.rb:314:in `wrapped_app' from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/railties-4.0.0/lib/rails/commands/server.rb:75:in `start' from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/railties-4.0.0/lib/rails/commands.rb:78:in `block in &lt;top (required)&gt;' from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/railties-4.0.0/lib/rails/commands.rb:73:in `tap' from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/railties-4.0.0/lib/rails/commands.rb:73:in `&lt;top (required)&gt;' from bin/rails:4:in `require' from bin/rails:4:in `&lt;main&gt;' </code></pre> <p>Is anyone know what happened??</p> <p>This is my routes filr as below:</p> <pre><code>Demo::Application.routes.draw do get "welcome/say_hello" =&gt; "welcome#say" # ... end </code></pre>
    singulars
    1. PO
      singulars
      1. PTAnswer
    1. This table or related slice is empty.
    1. PTQuestion
    1. USDreams
    1. USDreams
    plurals
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PO
      singulars
      1. PTAnswer
    1. VO
      singulars
      1. POTry to print "Hello World" on webpage but something happened
      1. This table or related slice is empty.
      1. VTApproveEditSuggestion
    1. This table or related slice is empty.
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload