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原标题:Running rails 3.0 project on rails 3.1 machine

I have installed rails 3.1 on my system but currently I have to work on rails 3.0 project. How can I run it. Otherwise it suggests me to use bundle exec for every command. Secondly, it is showing me the following error :- Command exiftool not found. How to get rid of these errors. Please guide. Thanx.

问题回答
  1. Command exiftool not found.
  2. Upgrading to Rails 3.1 (screencast, first few minutes if you don t need Asset Pipeline)
  3. Consider using RVM. With this thingumajig you can have different gemset (including rails, rusty and shiny) and even ruby version for each of your applications. Start from here.




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