When I tried to push to Heroku for the first time in a while, I got an error ...
...
remote: -----> Preparing app for Rails asset pipeline
remote:        Running: rake assets:precompile
remote:        rake aborted!
remote:        ActiveSupport::MessageEncryptor::InvalidMessage: ActiveSupport::MessageEncryptor::InvalidMessage
...
remote:        
remote:        Caused by:
remote:        OpenSSL::Cipher::CipherError: 
ActiveSupport::MessageEncryptor::InvalidMessage
This is an error caused by rails master.key
I have to register with Heroku
heroku config:set RAILS_MASTER_KEY=`cat config/master.key`
Setting RAILS_MASTER_KEY and restarting ⬢ tunagu-natto... done, v475
RAILS_MASTER_KEY: 72ddbs9f8c905e836e4e8dbf72a8b
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