rubygems

unable to install pg gem

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I tried using gem install pg but it doesn’t seem to work. gem install pg gives this error Temporarily enhancing PATH to include DevKit… Building native extensions. This could take a while… ERROR: Error installing pg: ERROR: Failed to build gem native extension. C:/Ruby/bin/ruby.exe extconf.rb checking for pg_config… no No pg_config… trying anyway. If building … Read more

find_spec_for_exe’: can’t find gem bundler (>= 0.a) (Gem::GemNotFoundException)

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I used sudo bundle install and that might be the cause of the issue? Now I have: gem -v 2.6.14 ruby -v ruby 2.3.5p376 (2017-09-14 revision 59905) [x86_64-darwin15] jekyll -v jekyll 3.6.2 bundle -vBundler version 1.16.0.pre.3 I’m getting the following error when trying to run bundle exec jekyll serve or just jekyll serve /Users/myusername/.rvm/rubies/ruby-2.3.5/lib/ruby/site_ruby/2.3.0/rubygems.rb:271:in `find_spec_for_exe’: … Read more

bundle install fails with SSL certificate verification error

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When I run bundle install for my Rails 3 project on Centos 5.5 it fails with an error: Gem::RemoteFetcher::FetchError: SSL_connect returned=1 errno=0 state=SSLv3 read server certificate B: certificate verify failed (https://bb-m.rubygems.org/gems/multi_json-1.3.2.gem) An error occured while installing multi_json (1.3.2), and Bundler cannot continue. Make sure that `gem install multi_json -v ‘1.3.2’` succeeds before bundling. When I … Read more

You don’t have write permissions for the /Library/Ruby/Gems/2.3.0 directory. (mac user)

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below is what I need to do. To run the specs, you’ll need to install RSpec. First, run gem install bundler in the root directory of your project. Then, run bundle install. To run a single spec file, run a command like this: bundle exec rspec spec/00_hello_spec.rb. To run all of the specs at once, … Read more

How to avoid “cannot load such file — utils/popen” from homebrew on OSX

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I’m getting an error when I run brew in the terminal: /System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/lib/ruby/2.0.0/rubygems/core_ext/kernel_require.rb:55:in `require’: cannot load such file — utils/popen (LoadError) from /System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/lib/ruby/2.0.0/rubygems/core_ext/kernel_require.rb:55:in `require’ from /usr/local/Library/Homebrew/utils.rb:6:in `<top (required)>’ from /System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/lib/ruby/2.0.0/rubygems/core_ext/kernel_require.rb:55:in `require’ from /System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/lib/ruby/2.0.0/rubygems/core_ext/kernel_require.rb:55:in `require’ from /usr/local/Library/Homebrew/global.rb:9:in `<top (required)>’ from /System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/lib/ruby/2.0.0/rubygems/core_ext/kernel_require.rb:55:in `require’ from /System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/lib/ruby/2.0.0/rubygems/core_ext/kernel_require.rb:55:in `require’ from /usr/local/Library/brew.rb:16:in `<main>’ These are my gem settings: – RUBYGEMS VERSION: 2.0.14 … Read more

gem install: Failed to build gem native extension (can’t find header files)

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I am using Fedora 14 and I have MySQL and MySQL server 5.1.42 installed and running. Now I tried to do this as root user: gem install mysql But I get this error: Building native extensions. This could take a while… ERROR: Error installing mysql: ERROR: Failed to build gem native extension. /usr/bin/ruby extconf.rb mkmf.rb … Read more