Railsã§ä½æãããã¢ããªã±ã¼ã·ã§ã³ã®ãªã¯ã¨ã¹ãURLã«URLã¨ã³ã³ã¼ã(å£ãã¦ãã¦UTF8ã«ãã³ã¼ãã§ããªã)ãããæååãå«ããã¨ArgumentErrorãçºçãã¾ãã ç°å¢ ruby 2.0.0p353 rails-4.0.4 åç¾æ¹æ³ ãµã³ãã«ããã¸ã§ã¯ããæ§ç¯ # railsã®ææ°çãã¤ã³ã¹ãã¼ã« $ gem install rails # ããã¸ã§ã¯ãã®ã»ããã¢ãã $ rails new invalid-byte-sequence-in-utf8-demo $ cd invalid-byte-sequence-in-utf8-demo $ bundle install # éçºãµã¼ãèµ·å $ rails server => Booting WEBrick => Rails 4.0.4 application starting in development on http:


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