model missing required attr_accessor for 'photo_file_name' when uploading with paperclip and S3 on heroku

Question

Setting up paperclip with S3 in my linux dev environment was a snap -- everything works out of the box. However, I can\'t get it to work on Heroku.

When I try to do

Answer 1

Found the problem: needed to update the database.

heroku run rake:db:migrate

heroku restart

I had done what I thought would have accomplished the same thing already:

heroku rake db:schema:load

but perhaps that doesn't work or something went wrong in the process.