CODEWITHSUNDEEP
mysqlruby-on-railsscaffolding
DynastySS
DynastySS

Reputation: 395

Issue generating ruby scaffolding

so I have set up my database and trying to generate some scaffolding for the app I made. I get this error, and I am a bit confused. Any advice? Thanks!

rails generate scaffold product title:string description:text image_url:string
/Users/Cameron/.rvm/rubies/ruby-1.9.3-p392/lib/ruby/1.9.1/psych.rb:203:in `parse': (<unknown>): could not find expected ':' while scanning a simple key at line 18 column 3 (Psych::SyntaxError)
from /Users/Cameron/.rvm/rubies/ruby-1.9.3-p392/lib/ruby/1.9.1/psych.rb:203:in `parse_stream'
from /Users/Cameron/.rvm/rubies/ruby-1.9.3-p392/lib/ruby/1.9.1/psych.rb:151:in `parse'
from /Users/Cameron/.rvm/rubies/ruby-1.9.3-p392/lib/ruby/1.9.1/psych.rb:127:in `load'
from /Users/Cameron/.rvm/gems/ruby-1.9.3-p392/gems/railties-3.2.13/lib/rails/application/configuration.rb:115:in `database_configuration'
from /Users/Cameron/.rvm/gems/ruby-1.9.3-p392/gems/activerecord-3.2.13/lib/active_record/railtie.rb:78:in `block (2 levels) in <class:Railtie>'
from /Users/Cameron/.rvm/gems/ruby-1.9.3-p392/gems/activesupport-3.2.13/lib/active_support/lazy_load_hooks.rb:36:in `instance_eval'
from /Users/Cameron/.rvm/gems/ruby-1.9.3-p392/gems/activesupport-3.2.13/lib/active_support/lazy_load_hooks.rb:36:in `execute_hook'
from /Users/Cameron/.rvm/gems/ruby-1.9.3-p392/gems/activesupport-3.2.13/lib/active_support/lazy_load_hooks.rb:43:in `block in run_load_hooks'
from /Users/Cameron/.rvm/gems/ruby-1.9.3-p392/gems/activesupport-3.2.13/lib/active_support/lazy_load_hooks.rb:42:in `each'
from /Users/Cameron/.rvm/gems/ruby-1.9.3-p392/gems/activesupport-3.2.13/lib/active_support/lazy_load_hooks.rb:42:in `run_load_hooks'
from /Users/Cameron/.rvm/gems/ruby-1.9.3-p392/gems/activerecord-3.2.13/lib/active_record/base.rb:720:in `<top (required)>'
from /Users/Cameron/.rvm/gems/ruby-1.9.3-p392/gems/activerecord-3.2.13/lib/active_record/railtie.rb:88:in `block in <class:Railtie>'
from /Users/Cameron/.rvm/gems/ruby-1.9.3-p392/gems/railties-3.2.13/lib/rails/initializable.rb:30:in `instance_exec'
from /Users/Cameron/.rvm/gems/ruby-1.9.3-p392/gems/railties-3.2.13/lib/rails/initializable.rb:30:in `run'
from /Users/Cameron/.rvm/gems/ruby-1.9.3-p392/gems/railties-3.2.13/lib/rails/initializable.rb:55:in `block in run_initializers'
from /Users/Cameron/.rvm/gems/ruby-1.9.3-p392/gems/railties-3.2.13/lib/rails/initializable.rb:54:in `each'
from /Users/Cameron/.rvm/gems/ruby-1.9.3-p392/gems/railties-3.2.13/lib/rails/initializable.rb:54:in `run_initializers'
from /Users/Cameron/.rvm/gems/ruby-1.9.3-p392/gems/railties-3.2.13/lib/rails/application.rb:136:in `initialize!'
from /Users/Cameron/.rvm/gems/ruby-1.9.3-p392/gems/railties-3.2.13/lib/rails/railtie/configurable.rb:30:in `method_missing'
from /Users/Cameron/depot/config/environment.rb:5:in `<top (required)>'
from /Users/Cameron/.rvm/gems/ruby-1.9.3-p392/gems/railties-3.2.13/lib/rails/application.rb:103:in `require'
from /Users/Cameron/.rvm/gems/ruby-1.9.3-p392/gems/railties-3.2.13/lib/rails/application.rb:103:in `require_environment!'
from /Users/Cameron/.rvm/gems/ruby-1.9.3-p392/gems/railties-3.2.13/lib/rails/commands.rb:25:in `<top (required)>'
from script/rails:6:in `require'
from script/rails:6:in `<main>'

Upvotes: 1

Views: 1335

Answers (1)

Jim Stewart
Jim Stewart

Reputation: 17323

This is likely a problem in your config/database.yml file. The error is from Psych, which is Ruby's YAML parsing engine. I don't know of any other YAML files that are read during a rails g scaffold, and I can reproduce that failure by introducing a typo into my database.yml file.

There are some online YAML validators you can paste your file into for help debugging it. Or add it to your question above if you can't find the problem.

Upvotes: 4

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