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Ruby Build a Todo List Application with Rails 4 Build a Todo List Application with Rails 4 Generate a Scaffold

Posted by gwen kutz
gwen kutz
4,688 Points

I get an error message whenever I try to generate a scaffold for the todo list

Sorry for the wall of error messages.

Whenever I try to run the command "bin/rails generate scaffold todo_list title:string description:text" I get this error message.

I am using a cloud based IDE, could that be the problem?

/usr/local/rvm/gems/ruby-2.1.5@global/gems/bundler-1.7.6/lib/bundler/runtime.rb:34:in block in setup': You have already activated spring 1.3.6, but your Gemfile requires spring 1.3.4. Prependingbundle execto your command may solve this. (Gem::LoadError) from /usr/local/rvm/gems/ruby-2.1.5@global/gems/bundler-1.7.6/lib/bundler/runtime.rb:19:insetup' from /usr/local/rvm/gems/ruby-2.1.5@global/gems/bundler-1.7.6/lib/bundler.rb:121:in setup' from /usr/local/rvm/gems/ruby-2.1.5@global/gems/bundler-1.7.6/lib/bundler/setup.rb:7:in<top (required)>' from /usr/local/rvm/rubies/ruby-2.1.5/lib/ruby/site_ruby/2.1.0/rubygems/core_ext/kernel_require.rb:128:in require' from /usr/local/rvm/rubies/ruby-2.1.5/lib/ruby/site_ruby/2.1.0/rubygems/core_ext/kernel_require.rb:128:inrescue in require' from /usr/local/rvm/rubies/ruby-2.1.5/lib/ruby/site_ruby/2.1.0/rubygems/core_ext/kernel_require.rb:39:in require' from /usr/local/rvm/gems/ruby-2.1.5@rails4/gems/spring-1.3.6/lib/spring/commands.rb:33:in<module:Spring>' from /usr/local/rvm/gems/ruby-2.1.5@rails4/gems/spring-1.3.6/lib/spring/commands.rb:4:in <top (required)>' from /usr/local/rvm/rubies/ruby-2.1.5/lib/ruby/site_ruby/2.1.0/rubygems/core_ext/kernel_require.rb:54:inrequire' from /usr/local/rvm/rubies/ruby-2.1.5/lib/ruby/site_ruby/2.1.0/rubygems/core_ext/kernel_require.rb:54:in require' from /usr/local/rvm/gems/ruby-2.1.5@rails4/gems/spring-1.3.6/lib/spring/server.rb:9:in<top (required)>' from /usr/local/rvm/rubies/ruby-2.1.5/lib/ruby/site_ruby/2.1.0/rubygems/core_ext/kernel_require.rb:128:in require' from /usr/local/rvm/rubies/ruby-2.1.5/lib/ruby/site_ruby/2.1.0/rubygems/core_ext/kernel_require.rb:128:inrescue in require' from /usr/local/rvm/rubies/ruby-2.1.5/lib/ruby/site_ruby/2.1.0/rubygems/core_ext/kernel_require.rb:39:in `require'

1 Answer

Aaron Kaye
Aaron Kaye
10,948 Points
Aaron Kaye
Aaron Kaye
10,948 Points

You can specify the version of spring in your Gemfile. Not sure what the root cause is but I am guessing it is just a mismatch in current spring version vs used spring version:

gem 'spring','~>1.3.6'

gwen kutz
gwen kutz
4,688 Points

That seemed to work! Thanks so much!