ruby - "Encoding::InvalidByteSequenceError" error occurs in Rails 3.1.0

Question

I updated Rails to version 3.1.0, but when I generate a new app and scaffold, it reports:

Encoding::InvalidByteSequenceError in Articles#index

Showing E:/blog/app/views/layouts/application.html.erb where line #6 raised:

"xC4xDA" followed by "xB2xBF" on UTF-16LE
  (in E:/blog/app/assets/javascripts/articles.js.coffee)

My environment is:

• Windows XP
• Ruby1.9.2p180
• Rails 3.1.0

and the encoding of the files in the project is 'UTF-8'.

Answer 1

Change the version of execjs to 1.2.4, 1.2.6 or 1.2.8 in Gemfile.lock

Only 1.2.7 will cause the problem.

Hope this helps.