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Tag Archives: rubygems

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  2. Entries tagged with "rubygems"

Technology Insights

Find Out What Dependencies A Ruby Gem Has, Gem Dependency

InsightsBy alexOctober 8, 2010Leave a comment

Earlier this afternoon I was working on a development server that has a web server, a PostgreSQL database, Ruby, and rubygems installed on it. I was curious to find out if a specific gem I was about to install had any dependencies or other gems that would also be installed as dependents of the gem…

Technology Errors

Ruby Gem Install Error: /usr/bin/ruby extconf.rb can’t find header files for ruby

ErrorsBy alexSeptember 10, 20102 Comments

I ran into a error when installing the first gem on a CentOS development server I was creating. The error states that the extconf.rb file could not the header files. Below I show the output of the error along with what was done to resolve the error.

Technology Errors

ERROR: RDoc documentation generator not installed: no such file to load — rdoc/rdoc

ErrorsBy alexSeptember 9, 20102 Comments

I recently setup a new server with Ruby and Rubygems however I received an error when attempting to install my first gem which happened to be ruby-lsapi. Below I explain the error including an example of the error in the output of installing a gem as well as what was done to resolve the error.

Technology Errors

CentOS Linux: Can’t install RMagick 2.7.0. Can’t find Magick-config

ErrorsBy alexMay 18, 201013 Comments

While prepping a development server earlier this afternoon I ran into an issue installing the rmagick gem. This was one of a list of 30 or so gems required by a Ruby project that was being installed onto the development server. I thought initially something else was wrong because I had run into this issue…

Technology Insights

RubyGems ERROR: Error Installing Cucumber, hoe Requires RubyGems version 1.3.1

InsightsBy alexMay 17, 2010Leave a comment

While creating a development environment for a Ruby project earlier I ran into an error installing some of the gems required by the project. I realized that I had installed an older version of RubyGems which was causing problems with some of the gem dependents that needed to be installed. Below I list one of…

Technology Insights

LiteSpeed Error: [STDERR] uninitialized constant Rack::Handler::LSWS::RewindableInput

InsightsBy alexApril 18, 2010Leave a comment

Awhile back I upgraded the “rack” gem on one of our CentOS Linux servers that runs LiteSpeed and Ruby. The upgrade took the rack gem from rack version 1.0.0 to rack version 1.0.1. After upgrading the Rack gem I attempted to visit the site located on the server where the gem was updated only to…

Technology Insights

no such file to load — rubygems (LoadError)

InsightsBy Chirag PatelMarch 29, 20103 Comments

When I installed MacPorts 1.8.2 on MacOS X 10.5.8, it automatically changed my PATH in my .bash_profile file. To fix the “rubygems (LoadError)” error message, I moved the “/opt/local/bin” from the beginning of the PATH to the end as follows:

Technology Errors

rubygems.rb:578:in report_activate_error: RubyGem version error: rspec(1.1.11 not = 1.2.4) (Gem::LoadError)

ErrorsBy alexJanuary 4, 2010Leave a comment

Earlier when attempting to use request-log-analyzer on a new server I had just installed it on I got the error stated below. There are numerous updates to the gems I was using to fulfill all of the requirements of the request-log-analyzer gem. I went through and updated many of the gems until I ran into…

Technology Insights

Gem Update Rubygems-Update Not Updating The Gem Command

InsightsBy alexDecember 28, 20096 Comments

Earlier when attempting to install the request-log-analyzer gem on a CentOS Linux server I ran into some issues. I noticed that on one server I was able to install the request-log-analyzer gem without issue but on another server running the same version of CentOS and Ruby as the first server the attempt to install request-log-analyzer…

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