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#rails console in my project configured with .rvmrc

# sanity check
ruby-1.8.7-p249 > %x{"source ~/.zshrc"}
sh: source ~/.zshrc: No such file or directory
 => "" 

ruby-1.8.7-p249 > %x{"source ~/.zshrc ; rvm 1.8.7-p249%rails3 ; rvm gemdir"}
sh: source ~/.zshrc ; rvm 1.8.7-p249%rails3 ; rvm gemdir: No such file or directory
 => "" 

# setting in config.ru
ENV["GEM_HOME"]=%x{"source ~/.zshrc ; rvm 1.8.7-p249%rails3 ; rvm gemdir"}.strip

# passenger log error
sh: source ~/.zshrc ; rvm 1.8.7-p249%rails3 ; rvm gemdir: No such file or directory
*** Exception PhusionPassenger::UnknownError in PhusionPassenger::Rack::ApplicationSpawner (Could not find gem 'rails (= 3.0.0.beta, runtime)' in any of the sources. (Bundler::GemNotFound)) (process 2432):