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Jin He8,123 Points
How to use require to load a external gem in a normal ruby file
Suppose I have create a normal ruby file hello.rb, I want to require activerecord in my file, and use require 'activerecord', but this doesn't work, /Library/Ruby/Site/2.0.0/rubygems/core_ext/kernel_require.rb:55:in `require': cannot load such file -- activerecord (LoadError)
how am I gonna fix that ?
Jason SeiferTreehouse Guest Teacher
Hi Jin He! I'm going to assume you have activerecord installed as a gem. In that case, you would do the following:
gem 'activerecord' require 'active_record'
There are some more steps involved with getting active record itself to work but those are the basic steps to take for using a gem.
After some Googling, the only possible answer I could come up with is that Ruby is looking in the wrong place for gems, possibly because you're using a newer version. I'm not even remotely sure, sadly.
Maybe Jason Seifer will come along and know the answer, but for now I'll keep looking :)