Using Haml and trying to run render Haml - ruby

When I tried to run haml render document.haml i get these errors and still I don't know how to render or use haml.
/Users/file/.gem/ruby/3.1.1/gems/haml-6.0.1/lib/haml/cli.rb:70in `read': No such file or directory # rb_sysopen - document.haml (Errno::ENOENT)
from /Users/file/.gem/ruby/3.1.1/gems/haml-6.0.1/lib/haml/cli.rb:70:in `read_file'
from /Users/file/.gem/ruby/3.1.1/gems/haml-6.0.1/lib/haml/cli.rb:75:in `generate_code'
from /Users/file/.gem/ruby/3.1.1/gems/haml-6.0.1/lib/haml/cli.rb:15:in `render'
from /Users/file/.gem/ruby/3.1.1/gems/thor-1.2.1/lib/thor/command.rb:27:in `run'
from /Users/file/.gem/ruby/3.1.1/gems/thor-1.2.1/lib/thor/invocation.rb:127:in `invoke_command'
from /Users/file/.gem/ruby/3.1.1/gems/thor-1.2.1/lib/thor.rb:392:in `dispatch'
from /Users/file/.gem/ruby/3.1.1/gems/thor-1.2.1/lib/thor/base.rb:485:in `start'
from /Users/file/.gem/ruby/3.1.1/gems/haml-6.0.1/exe/haml:6:in `<top (required)>'
from /Users/file/.gem/ruby/3.1.1/bin/haml:25:in `load'
from /Users/file/.gem/ruby/3.1.1/bin/haml:25:in `<main>'

Related

rails generate scaffold fails ruby 1.9.3

I'm just getting my feet wet in rails development. Trying to learn from "Head First Rails", which is fairly out of date. But I'm updating the commands to more modern versions of rails.
Anyway, I'm trying to use the rails generate scaffold command and running into the following error:
[root#web1:/var/www/tickets] #rails generate scaffold name:string seat_id_seq:string address:text price_paid:decimal email_address:string
invoke active_record
/usr/local/rvm/gems/ruby-1.9.3-p547/gems/railties-4.1.5/lib/rails/generators/base.rb:258:in `const_defined?': wrong constant name Name:string (NameError)
from /usr/local/rvm/gems/ruby-1.9.3-p547/gems/railties-4.1.5/lib/rails/generators/base.rb:258:in `block in class_collisions'
from /usr/local/rvm/gems/ruby-1.9.3-p547/gems/railties-4.1.5/lib/rails/generators/base.rb:249:in `each'
from /usr/local/rvm/gems/ruby-1.9.3-p547/gems/railties-4.1.5/lib/rails/generators/base.rb:249:in `class_collisions'
from /usr/local/rvm/gems/ruby-1.9.3-p547/gems/railties-4.1.5/lib/rails/generators/named_base.rb:200:in `block in check_class_collision'
from /usr/local/rvm/gems/ruby-1.9.3-p547/gems/thor-0.19.1/lib/thor/command.rb:27:in `run'
from /usr/local/rvm/gems/ruby-1.9.3-p547/gems/thor-0.19.1/lib/thor/invocation.rb:126:in `invoke_command'
from /usr/local/rvm/gems/ruby-1.9.3-p547/gems/thor-0.19.1/lib/thor/invocation.rb:133:in `block in invoke_all'
from /usr/local/rvm/gems/ruby-1.9.3-p547/gems/thor-0.19.1/lib/thor/invocation.rb:133:in `each'
from /usr/local/rvm/gems/ruby-1.9.3-p547/gems/thor-0.19.1/lib/thor/invocation.rb:133:in `map'
from /usr/local/rvm/gems/ruby-1.9.3-p547/gems/thor-0.19.1/lib/thor/invocation.rb:133:in `invoke_all'
from /usr/local/rvm/gems/ruby-1.9.3-p547/gems/thor-0.19.1/lib/thor/group.rb:232:in `dispatch'
from /usr/local/rvm/gems/ruby-1.9.3-p547/gems/thor-0.19.1/lib/thor/invocation.rb:115:in `invoke'
from /usr/local/rvm/gems/ruby-1.9.3-p547/gems/thor-0.19.1/lib/thor/group.rb:277:in `block in _invoke_for_class_method'
from /usr/local/rvm/gems/ruby-1.9.3-p547/gems/thor-0.19.1/lib/thor/shell.rb:68:in `with_padding'
from /usr/local/rvm/gems/ruby-1.9.3-p547/gems/thor-0.19.1/lib/thor/group.rb:266:in `_invoke_for_class_method'
from /usr/local/rvm/gems/ruby-1.9.3-p547/gems/thor-0.19.1/lib/thor/group.rb:149:in `_invoke_from_option_orm'
from /usr/local/rvm/gems/ruby-1.9.3-p547/gems/thor-0.19.1/lib/thor/command.rb:27:in `run'
from /usr/local/rvm/gems/ruby-1.9.3-p547/gems/thor-0.19.1/lib/thor/invocation.rb:126:in `invoke_command'
from /usr/local/rvm/gems/ruby-1.9.3-p547/gems/thor-0.19.1/lib/thor/invocation.rb:133:in `block in invoke_all'
from /usr/local/rvm/gems/ruby-1.9.3-p547/gems/thor-0.19.1/lib/thor/invocation.rb:133:in `each'
from /usr/local/rvm/gems/ruby-1.9.3-p547/gems/thor-0.19.1/lib/thor/invocation.rb:133:in `map'
from /usr/local/rvm/gems/ruby-1.9.3-p547/gems/thor-0.19.1/lib/thor/invocation.rb:133:in `invoke_all'
from /usr/local/rvm/gems/ruby-1.9.3-p547/gems/thor-0.19.1/lib/thor/group.rb:232:in `dispatch'
from /usr/local/rvm/gems/ruby-1.9.3-p547/gems/thor-0.19.1/lib/thor/base.rb:440:in `start'
from /usr/local/rvm/gems/ruby-1.9.3-p547/gems/railties-4.1.5/lib/rails/generators.rb:157:in `invoke'
from /usr/local/rvm/gems/ruby-1.9.3-p547/gems/railties-4.1.5/lib/rails/commands/generate.rb:11:in `<top (required)>'
from /usr/local/rvm/gems/ruby-1.9.3-p547/gems/activesupport-4.1.5/lib/active_support/dependencies.rb:247:in `require'
from /usr/local/rvm/gems/ruby-1.9.3-p547/gems/activesupport-4.1.5/lib/active_support/dependencies.rb:247:in `block in require'
from /usr/local/rvm/gems/ruby-1.9.3-p547/gems/activesupport-4.1.5/lib/active_support/dependencies.rb:232:in `load_dependency'
from /usr/local/rvm/gems/ruby-1.9.3-p547/gems/activesupport-4.1.5/lib/active_support/dependencies.rb:247:in `require'
from /usr/local/rvm/gems/ruby-1.9.3-p547/gems/railties-4.1.5/lib/rails/commands/commands_tasks.rb:135:in `generate_or_destroy'
from /usr/local/rvm/gems/ruby-1.9.3-p547/gems/railties-4.1.5/lib/rails/commands/commands_tasks.rb:51:in `generate'
from /usr/local/rvm/gems/ruby-1.9.3-p547/gems/railties-4.1.5/lib/rails/commands/commands_tasks.rb:40:in `run_command!'
from /usr/local/rvm/gems/ruby-1.9.3-p547/gems/railties-4.1.5/lib/rails/commands.rb:17:in `<top (required)>'
from /usr/local/rvm/gems/ruby-1.9.3-p547/gems/activesupport-4.1.5/lib/active_support/dependencies.rb:247:in `require'
from /usr/local/rvm/gems/ruby-1.9.3-p547/gems/activesupport-4.1.5/lib/active_support/dependencies.rb:247:in `block in require'
from /usr/local/rvm/gems/ruby-1.9.3-p547/gems/activesupport-4.1.5/lib/active_support/dependencies.rb:232:in `load_dependency'
from /usr/local/rvm/gems/ruby-1.9.3-p547/gems/activesupport-4.1.5/lib/active_support/dependencies.rb:247:in `require'
from /var/www/tickets/bin/rails:8:in `<top (required)>'
from /usr/local/rvm/gems/ruby-1.9.3-p547/gems/activesupport-4.1.5/lib/active_support/dependencies.rb:241:in `load'
from /usr/local/rvm/gems/ruby-1.9.3-p547/gems/activesupport-4.1.5/lib/active_support/dependencies.rb:241:in `block in load'
from /usr/local/rvm/gems/ruby-1.9.3-p547/gems/activesupport-4.1.5/lib/active_support/dependencies.rb:232:in `load_dependency'
from /usr/local/rvm/gems/ruby-1.9.3-p547/gems/activesupport-4.1.5/lib/active_support/dependencies.rb:241:in `load'
from /usr/local/rvm/rubies/ruby-1.9.3-p547/lib/ruby/site_ruby/1.9.1/rubygems/core_ext/kernel_require.rb:55:in `require'
from /usr/local/rvm/rubies/ruby-1.9.3-p547/lib/ruby/site_ruby/1.9.1/rubygems/core_ext/kernel_require.rb:55:in `require'
from -e:1:in `<main>'
I'm running ruby 1.9.3 via rvm and rails 4 via gem. The server is CentOS 7
I was just wondering if any of you might have run into a similar situation and know how I can get past this error.
Thanks!
Usage:
rails generate scaffold NAME [field[:type][:index] field[:type][:index]] [options]
Examples:
`rails generate scaffold post`
`rails generate scaffold post title body:text published:boolean`
You're not specifying name attribute, (i.e model)

Neoid error when starting Rails server

Having looked into it, and as a relative newbie to graph databases, I've decided that Neoid may be the best way to benefit from Neo4j at this stage. I've come across a problem straight after installing it, on starting up the server. I've installed the gem, added the 01_neo4j.rb file as stated on the github page, added the relevant columns to the models and get the following error:
=> Booting WEBrick
=> Rails 4.0.2 application starting in development on http://0.0.0.0:3000
=> Run `rails server -h` for more startup options
=> Ctrl-C to shutdown server
Exiting
C:/RailsInstaller/Ruby1.9.3/lib/ruby/1.9.1/open-uri.rb:35:in `initialize': No such file or directory - /dev/null (Errno::ENOENT)
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/1.9.1/open-uri.rb:35:in `open'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/1.9.1/open-uri.rb:35:in `open'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/1.9.1/logger.rb:599:in `create_logfile'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/1.9.1/logger.rb:594:in `open_logfile'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/1.9.1/logger.rb:549:in `initialize'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/1.9.1/logger.rb:314:in `new'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/1.9.1/logger.rb:314:in `initialize'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/neoid-0.1.2/lib/neoid.rb:73:in `new'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/neoid-0.1.2/lib/neoid.rb:73:in `logger'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/neoid-0.1.2/lib/neoid.rb:52:in `initialize_all'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/neoid-0.1.2/lib/neoid/railtie.rb:7:in `block (2 levels) in <class:Railtie>'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/activesupport-4.0.2/lib/active_support/lazy_load_hooks.rb:36:in `call'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/activesupport-4.0.2/lib/active_support/lazy_load_hooks.rb:36:in `execute_hook'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/activesupport-4.0.2/lib/active_support/lazy_load_hooks.rb:45:in `block in run_load_hooks'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/activesupport-4.0.2/lib/active_support/lazy_load_hooks.rb:44:in `each'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/activesupport-4.0.2/lib/active_support/lazy_load_hooks.rb:44:in `run_load_hooks'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/railties-4.0.2/lib/rails/application/finisher.rb:62:in `block in <module:Finisher>'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/railties-4.0.2/lib/rails/initializable.rb:30:in `instance_exec'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/railties-4.0.2/lib/rails/initializable.rb:30:in `run'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/railties-4.0.2/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 in tsort_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-4.0.2/lib/rails/initializable.rb:54:in `run_initializers'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/railties-4.0.2/lib/rails/application.rb:215:in `initialize!'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/railties-4.0.2/lib/rails/railtie/configurable.rb:30:in `method_missing'
from C:/Sites/Knock4/config/environment.rb:5:in `<top (required)>'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/activesupport-4.0.2/lib/active_support/dependencies.rb:229:in `require'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/activesupport-4.0.2/lib/active_support/dependencies.rb:229:in `block in require'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/activesupport-4.0.2/lib/active_support/dependencies.rb:214:in `load_dependency'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/activesupport-4.0.2/lib/active_support/dependencies.rb:229:in `require'
from C:/Sites/Knock4/config.ru:3:in `block in <main>'
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:/Sites/Knock4/config.ru:in `new'
from C:/Sites/Knock4/config.ru:in `<main>'
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-4.0.2/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-4.0.2/lib/rails/commands/server.rb:75:in `start'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/railties-4.0.2/lib/rails/commands.rb:76:in `block in <top (required)>'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/railties-4.0.2/lib/rails/commands.rb:71:in `tap'
from C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/railties-4.0.2/lib/rails/commands.rb:71:in `<top (required)>'
from bin/rails:4:in `require'
from bin/rails:4:in `<main>'
If anyone has any idea what the problem might be here, I would appreciate it. I'm using Rails 4.0.2 (as you can probably see), so not sure if this is an issue.
The error reference shows the following code:
def open(name, *rest, &block) # :doc:
if name.respond_to?(:open)
name.open(*rest, &block)
elsif name.respond_to?(:to_str) &&
%r{\A[A-Za-z][A-Za-z0-9+\-\.]*://} =~ name &&
(uri = URI.parse(name)).respond_to?(:open)
uri.open(*rest, &block)
else
open_uri_original_open(name, *rest, &block)
end
end
With
open_uri_original_open(name, *rest, &block)
being line 35. I have no idea what this means though!
This is caused, on windows, by neoid 0.1.2 which assumes you are on unix and so the standard logger redirects to dev/null. So you must define
ENV['NEOID_LOG'] ||= 'true'
ENV['NEOID_LOG_FILE'] ||= 'log/neoid.log'
and the log will be in the log folders.

Error with loading rdoc with rvm

I was trying to add docs through rvm, did not run into any errors, then when I went to look at File.open, received the following error. Any ideas?
Mikes-MacBook-Pro:programs mwsage$ rvm docs generate
Installing rdoc-data...................
Mikes-MacBook-Pro:programs mwsage$ ri File.open
/Users/mwsage/.rvm/gems/ruby-1.9.3-p429#rails3tutorial2ndEd/gems/rdoc-4.0.1/lib/rdoc/store.rb:617:in `initialize': store at /Users/mwsage/.rvm/rubies/ruby-1.9.3-p429/share/ri/1.9.1/system missing file /Users/mwsage/.rvm/rubies/ruby-1.9.3-p429/share/ri/1.9.1/system/Kernel/open-c.ri for Kernel::open (RDoc::Store::MissingFileError)
from /Users/mwsage/.rvm/gems/ruby-1.9.3-p429#rails3tutorial2ndEd/gems/rdoc-4.0.1/lib/rdoc/store.rb:617:in `open'
from /Users/mwsage/.rvm/gems/ruby-1.9.3-p429#rails3tutorial2ndEd/gems/rdoc-4.0.1/lib/rdoc/store.rb:617:in `load_method'
from /Users/mwsage/.rvm/gems/ruby-1.9.3-p429#rails3tutorial2ndEd/gems/rdoc-4.0.1/lib/rdoc/ri/driver.rb:1185:in `load_method'
from /Users/mwsage/.rvm/gems/ruby-1.9.3-p429#rails3tutorial2ndEd/gems/rdoc-4.0.1/lib/rdoc/ri/driver.rb:1197:in `block in load_methods_matching'
from /Users/mwsage/.rvm/gems/ruby-1.9.3-p429#rails3tutorial2ndEd/gems/rdoc-4.0.1/lib/rdoc/ri/driver.rb:983:in `block in find_methods'
from /Users/mwsage/.rvm/gems/ruby-1.9.3-p429#rails3tutorial2ndEd/gems/rdoc-4.0.1/lib/rdoc/ri/driver.rb:982:in `each'
from /Users/mwsage/.rvm/gems/ruby-1.9.3-p429#rails3tutorial2ndEd/gems/rdoc-4.0.1/lib/rdoc/ri/driver.rb:982:in `find_methods'
from /Users/mwsage/.rvm/gems/ruby-1.9.3-p429#rails3tutorial2ndEd/gems/rdoc-4.0.1/lib/rdoc/ri/driver.rb:1194:in `load_methods_matching'
from /Users/mwsage/.rvm/gems/ruby-1.9.3-p429#rails3tutorial2ndEd/gems/rdoc-4.0.1/lib/rdoc/ri/driver.rb:1213:in `lookup_method'
from /Users/mwsage/.rvm/gems/ruby-1.9.3-p429#rails3tutorial2ndEd/gems/rdoc-4.0.1/lib/rdoc/ri/driver.rb:508:in `add_method'
from /Users/mwsage/.rvm/gems/ruby-1.9.3-p429#rails3tutorial2ndEd/gems/rdoc-4.0.1/lib/rdoc/ri/driver.rb:783:in `display_method'
from /Users/mwsage/.rvm/gems/ruby-1.9.3-p429#rails3tutorial2ndEd/gems/rdoc-4.0.1/lib/rdoc/ri/driver.rb:802:in `display_name'
from /Users/mwsage/.rvm/gems/ruby-1.9.3-p429#rails3tutorial2ndEd/gems/rdoc-4.0.1/lib/rdoc/ri/driver.rb:827:in `block in display_names'
from /Users/mwsage/.rvm/gems/ruby-1.9.3-p429#rails3tutorial2ndEd/gems/rdoc-4.0.1/lib/rdoc/ri/driver.rb:824:in `each'
from /Users/mwsage/.rvm/gems/ruby-1.9.3-p429#rails3tutorial2ndEd/gems/rdoc-4.0.1/lib/rdoc/ri/driver.rb:824:in `display_names'
from /Users/mwsage/.rvm/gems/ruby-1.9.3-p429#rails3tutorial2ndEd/gems/rdoc-4.0.1/lib/rdoc/ri/driver.rb:1361:in `run'
from /Users/mwsage/.rvm/gems/ruby-1.9.3-p429#rails3tutorial2ndEd/gems/rdoc-4.0.1/lib/rdoc/ri/driver.rb:356:in `run'
from /Users/mwsage/.rvm/gems/ruby-1.9.3-p429#rails3tutorial2ndEd/gems/rdoc-4.0.1/bin/ri:12:in `<top (required)>'
from /Users/mwsage/.rvm/gems/ruby-1.9.3-p429#rails3tutorial2ndEd/bin/ri:23:in `load'
from /Users/mwsage/.rvm/gems/ruby-1.9.3-p429#rails3tutorial2ndEd/bin/ri:23:in `<main>'

MongoMapper: undefined method `each' for "StandardFormBuilder":String

I'm using MongoMapper with Padrino, and I'm having trouble with executing any padrino tasks. I get this error for nearly every tasks.
ethan#tardis:/var/www/sakura$ padrino rake -T
=> Executing Rake -T ...
/home/ethan/.rvm/gems/ruby-1.9.2-head/gems/mongo_mapper-0.8.6/lib/mongo_mapper/plugins/modifiers.rb:19:in `set': undefined method `each' for "StandardFormBuilder":String (NoMethodError)
from /home/ethan/.rvm/gems/ruby-1.9.2-head/gems/padrino-helpers-0.9.29/lib/padrino-helpers.rb:33:in `registered'
from /home/ethan/.rvm/gems/ruby-1.9.2-head/gems/sinatra-1.2.6/lib/sinatra/base.rb:1200:in `block in register'
from /home/ethan/.rvm/gems/ruby-1.9.2-head/gems/sinatra-1.2.6/lib/sinatra/base.rb:1198:in `each'
from /home/ethan/.rvm/gems/ruby-1.9.2-head/gems/sinatra-1.2.6/lib/sinatra/base.rb:1198:in `register'
from /var/www/sakura/app/app.rb:3:in `<class:Sakura>'
from /var/www/sakura/app/app.rb:1:in `<top (required)>'
from /home/ethan/.rvm/gems/ruby-1.9.2-head/gems/padrino-core-0.9.29/lib/padrino-core/reloader.rb:128:in `require'
from /home/ethan/.rvm/gems/ruby-1.9.2-head/gems/padrino-core-0.9.29/lib/padrino-core/reloader.rb:128:in `safe_load'
from /home/ethan/.rvm/gems/ruby-1.9.2-head/gems/padrino-core-0.9.29/lib/padrino-core/loader.rb:140:in `block in require_dependencies'
from /home/ethan/.rvm/gems/ruby-1.9.2-head/gems/padrino-core-0.9.29/lib/padrino-core/loader.rb:138:in `each'
from /home/ethan/.rvm/gems/ruby-1.9.2-head/gems/padrino-core-0.9.29/lib/padrino-core/loader.rb:138:in `require_dependencies'
from /home/ethan/.rvm/gems/ruby-1.9.2-head/gems/padrino-core-0.9.29/lib/padrino-core/mounter.rb:125:in `locate_app_object'
from /home/ethan/.rvm/gems/ruby-1.9.2-head/gems/padrino-core-0.9.29/lib/padrino-core/mounter.rb:21:in `initialize'
from /home/ethan/.rvm/gems/ruby-1.9.2-head/gems/padrino-core-0.9.29/lib/padrino-core/mounter.rb:189:in `new'
from /home/ethan/.rvm/gems/ruby-1.9.2-head/gems/padrino-core-0.9.29/lib/padrino-core/mounter.rb:189:in `mount'
from /var/www/sakura/config/apps.rb:34:in `<top (required)>'
from /home/ethan/.rvm/gems/ruby-1.9.2-head/gems/padrino-core-0.9.29/lib/padrino-core/reloader.rb:128:in `require'
from /home/ethan/.rvm/gems/ruby-1.9.2-head/gems/padrino-core-0.9.29/lib/padrino-core/reloader.rb:128:in `safe_load'
from /home/ethan/.rvm/gems/ruby-1.9.2-head/gems/padrino-core-0.9.29/lib/padrino-core/loader.rb:140:in `block in require_dependencies'
from /home/ethan/.rvm/gems/ruby-1.9.2-head/gems/padrino-core-0.9.29/lib/padrino-core/loader.rb:138:in `each'
from /home/ethan/.rvm/gems/ruby-1.9.2-head/gems/padrino-core-0.9.29/lib/padrino-core/loader.rb:138:in `require_dependencies'
from /home/ethan/.rvm/gems/ruby-1.9.2-head/gems/padrino-core-0.9.29/lib/padrino-core/loader.rb:56:in `block in load!'
from /home/ethan/.rvm/gems/ruby-1.9.2-head/gems/padrino-core-0.9.29/lib/padrino-core/loader.rb:56:in `each'
from /home/ethan/.rvm/gems/ruby-1.9.2-head/gems/padrino-core-0.9.29/lib/padrino-core/loader.rb:56:in `load!'
from /var/www/sakura/config/boot.rb:29:in `<top (required)>'
from /home/ethan/.rvm/rubies/ruby-1.9.2-head/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:55:in `require'
from /home/ethan/.rvm/rubies/ruby-1.9.2-head/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:55:in `require'
from /home/ethan/.rvm/gems/ruby-1.9.2-head/gems/padrino-core-0.9.29/lib/padrino-core/cli/base.rb:51:in `block in rake'
from /home/ethan/.rvm/gems/ruby-1.9.2-head/gems/padrino-core-0.9.29/lib/padrino-core/cli/base.rb:130:in `capture'
from /home/ethan/.rvm/gems/ruby-1.9.2-head/gems/padrino-core-0.9.29/lib/padrino-core/cli/base.rb:51:in `rake'
from /home/ethan/.rvm/gems/ruby-1.9.2-head/gems/thor-0.14.6/lib/thor/task.rb:22:in `run'
from /home/ethan/.rvm/gems/ruby-1.9.2-head/gems/thor-0.14.6/lib/thor/invocation.rb:118:in `invoke_task'
from /home/ethan/.rvm/gems/ruby-1.9.2-head/gems/thor-0.14.6/lib/thor.rb:263:in `dispatch'
from /home/ethan/.rvm/gems/ruby-1.9.2-head/gems/thor-0.14.6/lib/thor/base.rb:389:in `start'
from /home/ethan/.rvm/gems/ruby-1.9.2-head/gems/padrino-core-0.9.29/bin/padrino:8:in `<top (required)>'
from /home/ethan/.rvm/gems/ruby-1.9.2-head/bin/padrino:19:in `load'
from /home/ethan/.rvm/gems/ruby-1.9.2-head/bin/padrino:19:in `<main>'
I tried this with multiple Ruby versions, with similar results. Is this an error with Sinatra, MongoMapper, or what?
Seems a problem with ActiveSupport.
In your gemfile add:
gem "mongo_mapper", "~> 0.9.1"

Undefined method 'strip' when deploying Sinatra Application using capistrano

I'm getting a strange error when running cap deploy:setup:
cap deploy:setup
Using ActiveModel validations.
Validations included SimpleRecord::Base
New Aws::SdbInterface using per_thread-connection mode
New Aws::S3Interface using per_thread-connection mode
/Users/myusername/.rvm/gems/ruby-1.9.2-p136#sinatra/gems/capistrano-2.5.21/lib/capistrano/command.rb:24:in `initialize': undefined method `strip' for Sinatra::Application:Class (NoMethodError)
from /Users/myusername/.rvm/gems/ruby-1.9.2-p136#sinatra/gems/capistrano-2.5.21/lib/capistrano/command.rb:109:in `new'
from /Users/myusername/.rvm/gems/ruby-1.9.2-p136#sinatra/gems/capistrano-2.5.21/lib/capistrano/command.rb:109:in `else'
from /Users/myusername/.rvm/gems/ruby-1.9.2-p136#sinatra/gems/capistrano-2.5.21/lib/capistrano/configuration/actions/invocation.rb:144:in `block in run'
from /Users/myusername/.rvm/gems/ruby-1.9.2-p136#sinatra/gems/capistrano-2.5.21/lib/capistrano/command.rb:101:in `initialize'
from /Users/myusername/.rvm/gems/ruby-1.9.2-p136#sinatra/gems/capistrano-2.5.21/lib/capistrano/configuration/actions/invocation.rb:144:in `new'
from /Users/myusername/.rvm/gems/ruby-1.9.2-p136#sinatra/gems/capistrano-2.5.21/lib/capistrano/configuration/actions/invocation.rb:144:in `run'
from Capfile:9:in `load'
from /Users/myusername/.rvm/gems/ruby-1.9.2-p136#sinatra/gems/capistrano-2.5.21/lib/capistrano/configuration/loading.rb:93:in `instance_eval'
from /Users/myusername/.rvm/gems/ruby-1.9.2-p136#sinatra/gems/capistrano-2.5.21/lib/capistrano/configuration/loading.rb:93:in `load'
from /Users/myusername/.rvm/gems/ruby-1.9.2-p136#sinatra/gems/capistrano-2.5.21/lib/capistrano/configuration/loading.rb:172:in `load_from_file'
from /Users/myusername/.rvm/gems/ruby-1.9.2-p136#sinatra/gems/capistrano-2.5.21/lib/capistrano/configuration/loading.rb:89:in `load'
from /Users/myusername/.rvm/gems/ruby-1.9.2-p136#sinatra/gems/capistrano-2.5.21/lib/capistrano/configuration/loading.rb:86:in `block in load'
from /Users/myusername/.rvm/gems/ruby-1.9.2-p136#sinatra/gems/capistrano-2.5.21/lib/capistrano/configuration/loading.rb:86:in `each'
from /Users/myusername/.rvm/gems/ruby-1.9.2-p136#sinatra/gems/capistrano-2.5.21/lib/capistrano/configuration/loading.rb:86:in `load'
from /Users/myusername/.rvm/gems/ruby-1.9.2-p136#sinatra/gems/capistrano-2.5.21/lib/capistrano/cli/execute.rb:65:in `block in load_recipes'
from /Users/myusername/.rvm/gems/ruby-1.9.2-p136#sinatra/gems/capistrano-2.5.21/lib/capistrano/cli/execute.rb:65:in `each'
from /Users/myusername/.rvm/gems/ruby-1.9.2-p136#sinatra/gems/capistrano-2.5.21/lib/capistrano/cli/execute.rb:65:in `load_recipes'
from /Users/myusername/.rvm/gems/ruby-1.9.2-p136#sinatra/gems/capistrano-2.5.21/lib/capistrano/cli/execute.rb:31:in `execute!'
from /Users/myusername/.rvm/gems/ruby-1.9.2-p136#sinatra/gems/capistrano-2.5.21/lib/capistrano/cli/execute.rb:14:in `execute'
from /Users/myusername/.rvm/gems/ruby-1.9.2-p136#sinatra/gems/capistrano-2.5.21/bin/cap:4:in `<top (required)>'
from /Users/myusername/.rvm/gems/ruby-1.9.2-p136#sinatra/bin/cap:19:in `load'
from /Users/myusername/.rvm/gems/ruby-1.9.2-p136#sinatra/bin/cap:19:in `<main>'
Any ideas on how to troubleshoot this?
It turns out the MyApp.rb did not actually define class MyApp. I added this:
class MyApp < Sinatra::Base
that error is now cleared.

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