You should, I think, have a file in your config/initializers
directory called secret_token.rb
. Inside that file you'll see something like:
# Be sure to restart your server when you modify this file.
# Your secret key is used for verifying the integrity of signed cookies.
# If you change this key, all old signed cookies will become invalid!
# Make sure the secret is at least 30 characters and all random,
# no regular words or you'll be exposed to dictionary attacks.
# You can use `rake secret` to generate a secure secret key.
# Make sure your secret_key_base is kept private
# if you're sharing your code publicly.
MyApp::Application.config.secret_key_base = 'de6156670dfadf0101011000112310980198236544e55623a143c9ae5254842b2c66fcc59849'
If it's not there, try creating one.