installing gem from a github fork

I have installed a mongify gem from original source: then I want to install a newer version from a fork (has not been accepted yet for pull by original source, but it has an update that i need), link to the fork: h...
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2017-08-05 12:08 (1) Answers

rails gem friendly_id and mail_form error

I already bundle installed friendly_id gem but when I try to install the mail_form gem, it shows errors like this. I am using rails in windows. $ bundle install Resolving dependencies... Bundler could not find compatible versions for gem "activ...
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2017-06-13 11:06 (0) Answers

Rails annotate file/command not found

I tried the below and got the following errors: run annotate returns /Users/johndoe/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/annotate-2.7.1/lib/annotate.rb:12:in require: cannot load such file -- active_support/core_ext/hash/indifferent_acce...
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2017-05-23 18:05 (0) Answers

Could not find a valid gem 'metaclass'

My test did not run because 'mocha' was missing so I added to my Gemfile: source "" gem 'mocha' Then I got: Error installing mocha: [14:47:00][Step 2/4] mocha requires metaclass (~> 0.0.1, runtime) So I added to my Gem...
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2017-01-29 14:01 (1) Answers

Ruby error when running bundle install

When I run rails s in the console, command fails and I get this response: Could not find nokogiri- in any of the sources Run bundle install to install missing gems. First issue here is that nokogiri is not in my Gemfile because I'm not usin...
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2016-12-17 22:12 (1) Answers

I have an error with gem devise

I have create a simple project on Ruby on Rails. I have added gem devise in my Gemfile. When I launch the command rails g devise:install I have the output in the error below: /usr/local/rvm/gems/ruby-2.3.0/gems/actionpack-
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2016-12-11 19:12 (0) Answers

Understanding the tilde operator in Gemfile.lock

I currently have a dependency of the following i18n (~> 0.6, >= 0.6.4) I've been having a read through of the Ruby Gems - Declaring Dependency Guide And I've found out that the '~> 0.6' part means anything between 0.6 and 1.0 - correct me i...
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2016-11-08 14:11 (1) Answers

How do I build "gem install json"?

I’m using Rails 4.2.7. I’m trying to build this tutorial —, but getting a strange error, “An error occurred while installing json (1.8.0), and Bundler cannot continue.” So I tried “gem install json...
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2016-10-07 18:10 (1) Answers

Ignore Gemfile `source` if source not accessible

We have an internal gem server to store some organisation specific gems. We use it via a source option in Gemfile: source '' do gem 'local-gem' end The internal gem server is only available on the internal network. ...
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2016-09-08 11:09 (1) Answers

Why does a Gem provide ~> AND => in RubyGems?

The gem for bcrypt at shows this usage gem 'bcrypt', '~> 3.1', '>= 3.1.11' Why have the two versions of the spermy pessimistic operator ? We normally use just one version for other gems ...
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2016-08-30 01:08 (2) Answers