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In the file <code>config/secrets.yml</code> you need to add a <code>secret_key_base</code> for the production environment. Replace:
<pre>
<%= ENV[“SECRET_KEY_BASE”] %>
</pre>
with the output of:
<pre>
rake secret
</pre>
You can also set this as an environment variable, but adding it to the file is probably easier for testing purposes. Just remember to not check the secret into version control.
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