can't modify frozen array (TypeError) - config/application.rb:42:in `<<':

Question

I have a rails 3 app, and am trying to do testing. I do the following command rspec spec/controllers/ and get the following error:

/config/application.rb:42         


        

Answer 1

Try the method the comments suggest:

config.autoload_paths += %W{#{config.root}/lib}

This doesn't modify the initial array, but adds the given array to config.autoload_paths and saves it into a new array in config.autoload_paths.