GithubPadrinoissue
config/initializersextra_requires.rb
view_helpers.rb
# config/initializers/extra_requires.rb
require "active_support"
require "active_support/core_ext/string"
\--
Looks like a bug due to the ongoing effort to remove the ActiveSupport dependency from Padrino.
You don't need to update view_helpers.rb - creating a file in config/initializers should be sufficient as a temporary stop-gap until the bug is fixed.
# config/initializers/extra_requires.rb
require "active_support"
require "active_support/core_ext/string"