I am currently managing an installation of ruby 1.9.3 in red hat 5.
I have found that, during a specific gem install, ruby is trying to download and install the latest version of a particular required gem.
I have attempted to prevent the updating of gems using the --conservative flag, however, this does not seem to work.
The gem in question requires a specific version of launchy which, in turn, requires a specific version of addressable.
The versions of these gems that are already installed meet the requirements of the gem I am attempting to install. However, the gem command attempts to download and install the latest version of addressable.
This is a problem, because the latest addressable requires public_suffix, which only installs in ruby 2.x and greater.
The gem that I am trying to install is a custom gem, and thus I have modified the gemspec, and found that removing the launchy requirement fixes the issue. However, launchy is a required gem, so the requirement needs to stay in the dependency list.
Has anyone had any experience with dealing with this particular version of ruby and gem and found issues with dependencies?
I have tried going in and modifying gemspec for launchy and addressable in the installed gems dirs, but have found that the issue is with the gem install command attempting to update/install the latest gems despite giving it flags telling it otherwise.
ruby 1.9.3
gem 1.8.23
After some additional research prompted by the above responses, it was determined that an outdated version of Hoe was causing the generated gem to try and install the latest dependencies. After moving away from Hoe to manage dependencies and versions, my issue has been solved.
Some of the dependency management classes seem to behave quite differently, so that's probably the first place to look.
Use the -v flag to specify the exact version to install:
gem install your-custom-gem -v 1.1
Related
I currently have 2 ruby versions, 2.5.5 and 2.3.8, I am managing them with rbenv, and for gems, I use bundler to manage my specific gem versions. I have an issue when I want to switch to a project that uses 2.3.8 or a version that has to do with Ruby version 2.3.
My question is how do I get bundler to run the command to bundle install interact with my 2.3 projects.
My current version of bundler is 2.0.2.
I have already tried installing a lower version of bundler of which the bundler website claims to interact with ruby version 2.3.
I thought that if I specified the command to run bundle _version_ install it would work, but it still gave me the response that it needed ruby version 2.5 for bundler to work.
Lots of help appreciated.
In some situations, isolation can help. I would like to recommend rvm (https://github.com/rvm/rvm) for managing ruby versions. This tool is very similar to rbenv but in comparison, it allows you to create gemsets which are kind of containers of gems for special purposes. For instance:
rvm install 2.5.5 --disable-binary
rvm use 2.5.5#name-of-gemset --create
gem install bundler
bundle install # inside your project folder with Gemfile
I think that you will not have problems with versions again.
I am using puppet to install ruby 1.9.3 as the system ruby on an Ubuntu Trusty Vagrant container. I also install Bundler. I am told that "gem" is installed as part of the installation of ruby.
How do I know which versions of gem go with this version of ruby?
How do I know which versions of bundler go with this version of ruby?
Here is a fragment of puppet code:
$other_reqs = [
...
'ruby1.9.3',
'ruby-bundler',
'rubygems-integration',
...
]
package{ $other_reqs: ensure => 'installed'} -> Package['percona-toolkit']
The package declaration will default to using apt-get to download packages. Clearly the line with 'ruby1.9.3' will get the 1.9.3 version of ruby. It also installed gem 1.8.23. Is this a compatible version of gem? How do I know?
The line with 'ruby-bundler' installed Bundler version 1.3.5. Is this a compatible version of Bundler? Or should I indicate a specific version in my requirements array? Where ought I look to find this information?
It might be helpful if you indicate the problem, or what you're trying to do. Nevertheless:
gem is a command that is built-in in ruby from 1.9+, so whatever comes installed with Ruby should be fine.
bunlder is a RubyGem, normally installed by doing gem install bundler. You can specify the version by doing gem install -v <version>. Either it gets installed correctly or you get an error. Can you install bundler doing that?
And lastly, unless you need it for a specific reason, 1.9 is very old :)
I'm trying to work around a bug in the ffi Gem on Windows. I need to run bundle install on some project that I pulled from the internet. The problem is that bundle install is trying to install version 1.9.9 of ffi, which will error out.
Is there some way I can tell bundle install to install version 1.9.8 of ffi? Perhaps a command line parameter, or an addition to the Gemfile or Gemfile.lock?
One possible complication is that the Gemfile I'm dealing with does not list ffi at all, so it must be pulled in by one of the dependencies' dependencies.
Explicitly list the version of ffi you want in your Gemfile. That's what it's for:
gem 'ffi', '1.9.8'
If your Gemfile.lock already has ffi locked to version 1.9.9 (which is probably the case for you), you may have to run bundle update ffi after adding that to your Gemfile before bundle install will work correctly.
I just installed Ruby 2.0.0 using rbenv and set it to the global ruby version for my system. Since 2.0 is compatible with 1.9.3, I tried to start up a Rails project with it, but got the following error. I did rbenv rehash after installing 2.0
The `rails' command exists in these Ruby versions:
1.9.3-p327
Does this mean that every gem I installed on my system with 1.9.3 has to be reinstalled if I wish to use it with 2.0?
As seen here:
You need to reinstall bundler for each version of Ruby you use. See Ruby versions where you have it installed:
rbenv whence bundle
See your current version:
rbenv version
Install bundler for that version, if missing:
gem install bundler
Yes. Rbenv (and RVM) have separate "gem home" directories for each installed version of Ruby. There may be ways to symlink certain directories to get them to share, but this will likely lead to problems, particularly with gems that include native C extensions, which may or may not compile and run cleanly in multiple versions.
If you have a Gemfile, easiest thing is to just bundle install again for Ruby 2.0, giving you duplicate copies of many gems and Ruby-2.0 compiled versions of any native gems.
Another solution to this is to copy (or reinstall) the gems from your previous version to the newly installed version. How to do that is answered in detail in this question, which has two scripts -- one to install from local cache, one to reinstall from the internet (mine).
I updates my gems, now I get this error:
Unable to activate capybara-mechanize-0.2.7, because capybara-1.1.1 conflicts with capybara (~> 0.4.0) (Gem::LoadError)
I've googled and searched SO, but I'm a bit of a n00b and not really sure what I need to do next.
Thanks for your time,
Mike
You can try to delete conflicting gem by invoking gem uninstall capybara. You will be the prompted which version to delete.
To remove all old gems in one swipe just use gem cleanup.
After cleaning old version which, hopefully, you don't need you should be ok. Otherwise, consider using bundler (http://gembundler.com/) to manage gems in your projects and RVM, where you can have completely separate gemsets.
My general workflow is as follows:
In Rails/Sinatra etc applications I put vendor/cache in my .gitignore and run bundle pack which installs gems into that directory. That way I can keep installed gems local per application.
In my daily workflow I use RVM to switch ruby versions and install gems into gemsets which I can port across RVM rubies. http://beginrescuened.com. A popular and more lightweight alternative to RVM is https://github.com/sstephenson/rbenv.
So bundler manages my gem dependencies in a sane manner and RVM lets me manage gems at a granular level. I went through the dependency hell of plain old rubygems a while back, never again.
You've either got two versions of Capybara installed (both 1.1.1 and some other version). You can go a gem list --local (or if you're using Bundler do a bundle show) and uninstall one of them.
Or possibly you've specified that you want versions ~> 0.4.0, and the version number 1.1.1 is out of that range. That is, the specified version range ~> 0.4.0 will only work with 0.4.0 .. 0.4.x, and not 0.5.x or higher.