ArgumentError（US-ASCII中无效的字节序列）：在ruby升级1.9.3中

Question

I am using ruby 1.9.3 and rails 3.0.3 in my application.while uploading any files i am getting following error in production

ArgumentError (invalid byte sequence in US-ASCII):

config/initializers/rake_multipart.rb:35:in =~' config/initializers/rake_multipart.rb:35:in block in parse_multipart' config/initializers/rake_multipart.rb:30:in loop' config/initializers/rake_multipart.rb:30:in parse_multipart'

Answer 1

If you are on macOS or Linux, you can start Middleman this way to force it to use UTF-8:

LANG=en_US.UTF-8 LANGUAGE=en_US.UTF-8 LC_ALL=en_US.UTF-8 middleman

Not sure about Windows, though.