在某次為專案的乙個應用程式memy做rake測試時出現了如下的錯誤：
[root@rp1 memy3.0.7]# rake --trace
error_info
rake aborted!
/var/qup/memy3.0.7/thinking-sphinx/ruby/1.9.1/gems/jieks-0.0.6/lib/jieks/common.rb:425:
invalid multibyte char (us-ascii)
/var/qup/memy3.0.7/thinking-sphinx/ruby/1.9.1/gems/jieks-0.0.6/lib/jieks/common.rb:425:
invalid multibyte char (us-ascii)
/var/qup/memy3.0.7/thinking-sphinx/ruby/1.9.1/gems/jieks-0.0.6/lib/jieks/common.rb:425: syntax error, unexpected $end, expecting ')'
str = str.gsub("?","-") ^
/var/qup/memy3.0.7/thinking-sphinx/ruby/1.9.1/gems/activesupport-3.0.7/lib/active_support/dependencies.rb:239:in `require'
/var/qup/memy3.0.7/thinking-sphinx/ruby/1.9.1/gems/activesupport-3.0.7/lib/active_support/dependencies.rb:239:in `block in require'
/var/qup/memy3.0.7/thinking-sphinx/ruby/1.9.1/gems/activesupport-3.0.7/lib/active_support/dependencies.rb:225:in `block in load_dependency'
/var/qup/memy3.0.7/thinking-sphinx/ruby/1.9.1/gems/activesupport-3.0.7/lib/active_support/dependencies.rb:596:in `new_constants_in'
/var/qup/memy3.0.7/thinking-sphinx/ruby/1.9.1/gems/activesupport-3.0.7/lib/active_support/dependencies.rb:225:in `load_dependency'
/var/qup/memy3.0.7/thinking-sphinx/ruby/1.9.1/gems/activesupport-3.0.7/lib/active_support/dependencies.rb:239:in `require'
/var/qup/memy3.0.7/thinking-sphinx/ruby/1.9.1/gems/jieks-0.0.6/lib/jieks.rb:4:in `'
/usr/local/lib/ruby/gems/1.9.1/gems/bundler-1.0.13/lib/bundler/runtime.rb:68:in `require'
/usr/local/lib/ruby/gems/1.9.1/gems/bundler-1.0.13/lib/bundler/runtime.rb:68:in `block (2 levels) in require'
/usr/local/lib/ruby/gems/1.9.1/gems/bundler-1.0.13/lib/bundler/runtime.rb:66:in `each'
/usr/local/lib/ruby/gems/1.9.1/gems/bundler-1.0.13/lib/bundler/runtime.rb:66:in `block in require'
/usr/local/lib/ruby/gems/1.9.1/gems/bundler-1.0.13/lib/bundler/runtime.rb:55:in `each'
/usr/local/lib/ruby/gems/1.9.1/gems/bundler-1.0.13/lib/bundler/runtime.rb:55:in `require'
/usr/local/lib/ruby/gems/1.9.1/gems/bundler-1.0.13/lib/bundler.rb:120:in `require'
/usr/local/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:36:in `require'
/usr/local/lib/ruby/site_ruby/1.9.1/rubygems/custom_require.rb:36:in `require'
/var/qup/memy3.0.7/rakefile:4:in `'
/usr/local/lib/ruby/gems/1.9.1/gems/rake-0.9.2/lib/rake/rake_module.rb:25:in `load'
/usr/local/lib/ruby/gems/1.9.1/gems/rake-0.9.2/lib/rake/rake_module.rb:25:in `load_rakefile'
/usr/local/lib/ruby/gems/1.9.1/gems/rake-0.9.2/bin/rake:32:in `'
/usr/local/bin/rake:19:in `load'
/usr/local/bin/rake:19:in `'
從網上調查得知，ruby 1.9以後實現了新的字串編碼方式，而jieks-0.0.6的**用的還是ruby1.8的字串機制，所以導致該錯誤。解決的方法是，修改出錯的檔案，在其開頭第一行加入:
# encoding: utf-8
（或者加入 # coding: utf-8 也可\(^o^)/~）
繼續執行rake命令，很多檔案出現了很多同樣的錯誤，解決辦法也是一樣的。
統計下來，總共有如下的檔案需要作如是修正：
/var/qup/memy3.0.7/thinking-sphinx/ruby/1.9.1/gems/jieks-0.0.6/lib/jieks/jieks.rb
/var/qup/memy3.0.7/thinking-sphinx/ruby/1.9.1/gems/jieks-0.0.6/lib/jieks/qup.rb
/var/qup/memy3.0.7/thinking-sphinx/ruby/1.9.1/gems/jieks-0.0.6/lib/jieks/common.rb
/var/qup/memy3.0.7/thinking-sphinx/ruby/1.9.1/gems/jieksquery-0.0.11/lib/jieksquery/query.rb
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