# Yaml Error When Trying to Generate Scaffold **URL:** \ **Category:** Rails\ **Created:** [December 2, 2005, 1:25am UTC](https://www.ruby-forum.com/t/yaml-error-when-trying-to-generate-scaffold/49277 "2005-12-02T01:25:39Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![untz786](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/u/bc8723/32.png) [@untz786](https://www.ruby-forum.com/u/untz786)\ **Post date:** [December 2, 2005, 1:25am UTC](https://www.ruby-forum.com/t/yaml-error-when-trying-to-generate-scaffold/49277/1 "2005-12-02T01:25:39Z")
Hello there, I am a Ruby on Rails newbie, and have been reading the book, “Agile Web D. with Rails”, by Dave T… Seem to be stuck on page 57, when trying to invoke “ruby script/ generate scaffold Product Admin”… My depot/config/database.yml file’s contents are: development: adapter: mysql database: depot\_development socket: /tmp/mysql.sock username: untz password: paintball # Warning: The database defined as ‘test’ will be erased and # re-generated from your development database when you run ‘rake’. # Do not set this db to the same as development or production. test: adapter: mysql database: depot\_test socket: /tmp/mysql.sock username: untz password: paintball production: adapter: mysql database: depot\_production socket: /tmp/mysql.sock username: untz password: paintball When I created these tables using MySQL 5, I issued the following in the MySQL Command Line Monitor: grant all on depot\_development.\* to ‘untz’@‘localhost’ identified by ‘paintball’; grant all on depot\_test.\* to ‘untz’@‘localhost’ identified by ‘paintball’; grant all on depot\_production.\* to ‘untz’@‘localhost’ identified by ‘paintball’; When I tried to generate a scaffold, this is the error I received: Raven:/Developer/DevResources/Ruby/RailsApps/depot untz$ ruby script/ generate scaffold Product Admin /usr/local/lib/ruby/1.8/yaml.rb:133:in `load': syntax error on line 19, col -2:`production: (ArgumentError) adapter: mysql database: depot\_production socket: /tmp/mysql.sock username: untz password: paintball ’ from /usr/local/lib/ruby/1.8/yaml.rb:133:in `load' from /usr/local/lib/ruby/gems/1.8/gems/rails-0.14.3/lib/ initializer.rb:419:in`database\_configuration’ from /usr/local/lib/ruby/gems/1.8/gems/rails-0.14.3/lib/ initializer.rb:163:in `initialize_database' from /usr/local/lib/ruby/gems/1.8/gems/rails-0.14.3/lib/ initializer.rb:80:in`process’ from /usr/local/lib/ruby/gems/1.8/gems/rails-0.14.3/lib/ initializer.rb:40:in `run' from ./config/environment.rb:10 from /usr/local/lib/ruby/site_ruby/1.8/rubygems/ custom_require.rb:21:in`require’ from /usr/local/lib/ruby/gems/1.8/gems/activesupport-1.2.3/ lib/active\_support/dependencies.rb:214:in `require' from /usr/local/lib/ruby/gems/1.8/gems/rails-0.14.3/lib/ commands/generate.rb:1 from /usr/local/lib/ruby/site_ruby/1.8/rubygems/ custom_require.rb:21:in`require’ from /usr/local/lib/ruby/gems/1.8/gems/activesupport-1.2.3/ lib/active\_support/dependencies.rb:214:in `require’ from script/generate:3 I am using ruby 1.8.3 (2005-09-21) [powerpc-darwin8.2.0] on OS X Tiger and Rails 0.14.3… Is the Ruby 1.8.3’s yaml corrupt? Please help! I am at this point, stuck… I really want to learn “Ruby on Rails”, so any tips, suggestions, and hints would be greatly appreciated. Is there a setting in Rails where I change a configuration to point to the prospective Ruby 1.8.3 on my local machine? Do I need to re-install Ruby 1.8.2? Many, many thanks! -Unnsse ---
**Author:** ![untz786](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/u/bc8723/32.png) [@untz786](https://www.ruby-forum.com/u/untz786)\ **Post date:** [December 2, 2005, 1:41am UTC](https://www.ruby-forum.com/t/yaml-error-when-trying-to-generate-scaffold/49277/2 "2005-12-02T01:41:48Z")
On Thu, Dec 01, 2005, untz wrote: > /usr/local/lib/ruby/1.8/yaml.rb:133:in `load': syntax error on line 19, col -2:`production: (ArgumentError) The error that you’re seeing often indicates a whitespace problem in the YAML. Tabs are illegal in YAML so make sure that all of the whitespace in your file truly are spaces and not tabs. If that doesn’t work, there may be something else going on, but that’s a good place to start. Ben ---
**Author:** ![untz786](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/u/bc8723/32.png) [@untz786](https://www.ruby-forum.com/u/untz786)\ **Post date:** [December 2, 2005, 1:45am UTC](https://www.ruby-forum.com/t/yaml-error-when-trying-to-generate-scaffold/49277/3 "2005-12-02T01:45:50Z")
On Thu, Dec 01, 2005, untz wrote: > # Warning: The database defined as ‘test’ will be erased and > > # re-generated from your development database when you run ‘rake’. > > # Do not set this db to the same as development or production. > > test: > adapter: mysql > database: depot\_test > socket: /tmp/mysql.sock > username: untz > password: paintball On a second glance, it also might be those extra spaces between ‘password:’ and ‘paintball’. Make sure that’s not a tab and that there’s only one space. Ben ---
**Author:** ![untz786](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/u/bc8723/32.png) [@untz786](https://www.ruby-forum.com/u/untz786)\ **Post date:** [December 2, 2005, 9:24am UTC](https://www.ruby-forum.com/t/yaml-error-when-trying-to-generate-scaffold/49277/4 "2005-12-02T09:24:41Z")
Ok, that’s a good observation… On gvim, it doesn’t show the tab and using pico, it does show the spaces… When I fixed it and re ran the attempt to generate a scaffold, this is the new error I got: ruby script/generate scaffold Product Admin exists app/controllers/ exists app/helpers/ exists app/views/admin exists test/functional/ dependency model exists app/models/ exists test/unit/ exists test/fixtures/ identical app/models/product.rb identical test/unit/product\_test.rb identical test/fixtures/products.yml create app/views/admin/\_form.rhtml Permission denied - ./app/views/admin/\_form.rhtml Any suggestions? Many, many thanks! -Unnsse