Unable to load CSS,JS when Heroku deployment, picture resource resolution

Solution:

First look at the Gemfile to make sure that the group:p roduction do adds the gem "Rails_12factor", ' 0.0.2 '

Then execute the Rails s-e production locally to see if it works

Perform rake assets:precompile if local is not normal

Then modify the config/environments/production.rb, change the Config.serve_static_assets = False value to True, let the server support the sending of static files, When you publish with Nginx or Apache, change this to false, because these servers are more efficient at resolving static files

Finally execute Heroku run rake assets:precompile

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Someone else is because they didn't clean the assets.

Rails_env=production Bundle EXEC Rake Assets:clean

Rails_env=production Bundle EXEC Rake Assets:precompile

Unable to load CSS,JS when Heroku deployment, picture resource resolution