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I am going through a recurrent problem, while hitting for admin dashboard in the rails_admin it give me error:

ExecJS::ProgramError in RailsAdmin::Main#dashboard

TypeError: Object doesn't support this property or method
  (in c:/RailsInstaller/Ruby2.0.0/lib/ruby/gems/2.0.0/gems/rails_admin-0.6.7/app/assets/javascripts/rails_admin/ra.nested-form-hooks.coffee)

line #9 has the following code:

= javascript_include_tag "rails_admin/rails_admin.js"

Solution tried:

  1. I have tried the node.js installation
  2. Modify JScript section in runtimes.rb file.

Nothing worked for me. If anyone has solved it, please let me know.

Said Kaldybaev
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user1540918
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1 Answers1

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Try this. In your Gemfile, put

gem 'coffee-script-source', '1.8.0'

then run

bundle update coffee-script-source

I've read 1.9.0 has issues on Windows, and have used this workaround in the past, but the issue resurfaced in a newer project with Rails Admin today, leading me to your post. Of course it works on Ubuntu and Mac OSX. Here's another post where this worked for someone else.

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