Add the ActiveStorage configuration

config/environments/development.rb

@@ -19,6 +19,8 @@ Rails.application.configure do
   # Don't care if the mailer can't send.
   config.action_mailer.raise_delivery_errors = false
 
+  config.active_storage.service = :local
+
   # Print deprecation notices to the Rails logger.
   config.active_support.deprecation = :log
 

config/environments/production.rb

@@ -68,6 +68,8 @@ Rails.application.configure do
   # the I18n.default_locale when a translation cannot be found).
   config.i18n.fallbacks = true
 
+  config.active_storage.service = :clever_cloud
+
   # Send deprecation notices to registered listeners.
   config.active_support.deprecation = :notify