It means your Rails installation is corrupted or incomplete. If you list your gems, chances are you won’t find railties $ gem list Run the command $ gem install rails again. It will download and install missing dependencies, including railties.
Try bundle clean –force It removes every system gem not in this bundle
In Ruby 1.9.0, the C interface was changed from the Ruby 1.8 series. Gems that compile to native code had to be recompiled. The interface was again changed in Ruby 1.9.1 and kept the same in Ruby 1.9.2 & 3. This explains the 1.9.1 you are seeing in your path. The idea is that you … Read more
It means “equal to or greater than in the last digit”, so e.g. ~> 2.3 means “equal to 2.3 or greater than 2.3, but less than 3.0”, while ~> 2.3.0 would mean “equal to 2.3.0 or greater than 2.3.0, but less than 2.4.0”. You can pronounce it as “approximately greater than”. ยง Pessimistic version constraint
You may actually need to install both of these packages sudo apt-get install libxslt-dev libxml2-dev
The problem is not what anyone wrote. The problem is that the name of the postgresql database adapter is “postgresql”, not “postgres”, though the name of the GEM is “pg”. The definition in the database.yml file should include adapter: postgresql
I had almost precisely the same error, and was able to completely fix it simply by running: gem install bundler It’s possible your bundler installation is corrupt or missing – that’s what happened in my case. Note that if the above fails you can try: sudo gem install bundler …but generally you can do it … Read more
to remove your current version you could just run: sudo gem uninstall cocoapods you can install a specific version of cocoa pods via the following command: sudo gem install cocoapods -v 0.25.0 You can use older installed versions with following command: pod _0.25.0_ setup
For those who may be confused by the accepted answer, as I was, you also need to have the ruby headers installed [ruby-devel]. The article that saved my hide is here. And this is the revised solution (note that I’m on Fedora 13): yum -y install gcc mysql-devel ruby-devel rubygems gem install -y mysql — … Read more
Follow the Instructions from the Ruby Installer Developer Kit Wiki: Download Ruby 1.9.3 from rubyinstaller.org Download DevKit file from rubyinstaller.org For Ruby 1.9.3 use DevKit-tdm-32-4.5.2-20110712-1620-sfx.exe Extract DevKit to path C:\Ruby193\DevKit Run cd C:\Ruby193\DevKit Run ruby dk.rb init Run ruby dk.rb review Run ruby dk.rb install To return to the problem at hand, you should be … Read more