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I am trying to install metrical and it fails with 

gem install metrical
ERROR:  Error installing metrical:
    churn requires churn (>= 0)

Trying the following also gives errors.

gem install churn 
ERROR:  Error installing churn:
    churn requires churn (>= 0)

Does anyone knows how to install churn when churn requires itself?

mu is too short
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kmitov
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1 Answers1

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The gem will not install properly through commandline because of its dependencies. https://github.com/iain/metrical/#usage

If you are working on rails app just add it in Gemfile 

gem 'metrical', :require => false

then bundle install

this will install it will all proper dependencies

or else to install it from outside rails.

Create a Gemfile in any dummy direcory and add following lines

source 'https://rubygems.org'
gem 'metrical'

then run bundle install

worked for me.. Cheers

Pritesh Jain
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  • Worked for me also. But now the next problem - running metrical results in "/home/kireto/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/site_ruby/1.9.1/rubygems/version.rb:279: stack level too deep (SystemStackError)". But that is another question – kmitov Aug 16 '12 at 06:53
  • glad that helped. there are many question on STO regarding your next problem :) happy coding. – Pritesh Jain Aug 16 '12 at 06:56