Rails 5 Heroku deploy error: ExecJS::ProgramError: SyntaxError: Unexpected token: name (autoRegisterNamespace)

Question

When trying to deploy a rails 5 app to heroku, I get the following error, when it reaches Running: rake assets:precompile:

remote:        ExecJS         


        

Answer 1

In my case I am using angularjs-rails gem and some how used es6 standard so solve it by commenting uglifier compressor in file config/environments/production.rb.

#config.assets.js_compressor = :uglifier