[Redmine] Encoding::CompatibilityError (incompatible character encodings: UTF-8 and ASCII-8BIT):
The following error occurred in Redmine 1.2.3.
Encoding::CompatibilityError (incompatible character encodings: UTF-8 and ASCII-8BIT):
The cause of the error was that I was using Ruby version 1.9.2 when I should have been using 1.8.7.
You need to correctly specify and install the Ruby, Rails, and Rack versions that correspond to each version of Redmine.
・Redmine をインストールするときに必要な Ruby, Rails, Rack のバージョンを確認できるサイト | CodeNote.net
Also, when changing the Ruby version used on Heroku, please refer to this article:
・[Heroku] Rubyのバージョンを変更する | CodeNote.net
That’s all from the Gemba.
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