I started learn Ruby (for automation tests) in Rubymine but I have a problem with gems.
I downloaded some projects from github but I am not able to run projects Same with some tutorials.
Now as i understand:
EVERY project should have GEM FILE with gem versions.
It is possible to have projects with different version
bundles should take care of gems (but i have the problem with this)
My version ruby :2 .2.4
cucumber 2.2.4 gem 2.4.5.1
Do you recommend RVM? How can I correct install this(I downloaded something for key and sing up but no email with password) I could not use also curl command
I tried using : https://rvm.io/rvm/install
I am using RubyMine(for 30days so soon will finish:(() I used e.g https://github.com/RailsApps/rails-bootstrap
and here I have:
alidate_ruby!': Your Ruby version is 2.2.4, but your Gemfile specified 2.2.3 (Bundler::RubyVersionMismatch)
Can anybody help me? Thanks!
Related
I have Installed
2017.1.5 Version of Ruby
ruby-2.4.1-p111
I've made a new project and named it hello.rb. When I run it, everything works fine. However when I try to debug the project I get a prompt message
The gem debase required by the debugger is not currently installed. Would you like to install?
Error running hello. Following gems were not installed:
I've tried re-installing everything and restarting and I don't know what is the problem.
Well apparently debugger in RubyMine does require this gem. So You have multiple ways of doing this.
Assuming your File > Settings > Languages & Frameworks > Ruby SDK and Gems
contains only one ruby version and its the selected one (and the gem really isn't in the list). As halfelf said in your terminal/cmd/iterm you would simply write
gem install debase
Also you could create file called Gemfile that would have all the gems in
source 'http://rubygems.org'
gem 'debase'
and in the future any other gems you would need, Rubymine should be able to install those for you.
If you would have already installed the gem, there might be a gem installation conflict that would need to be resolved.
When trying to install a ruby app via bundler, how does your system decide which version of Ruby to use?
Will I run into problems if i use a version of Ruby installed in a directory I do not have access to? If so, how do I ensure I use a version of Ruby installed in the correct directory.
For those voting to close, I am not looking for debugging help. I am looking for an understanding of how bundler decides which version of Ruby to use.
If your app has a Gemfile (most will) you can specify ruby version on Gemfile.
See this question Set ruby version in Gemfile
I'm trying to start a rails application in IntelliJ with the Ruby plugin.
I've imported the application and set up the run configuration as best I can. When I try to run it I get the error:
NoMethodError: undefined method `version_requirements' for #<Gem::Dependency:0x7de21f45>
When looking for an answer I found this page saying that I should do this:
$ gem install rubygems-update -v='1.4.2'
$ gem uninstall rubygems-update -v='1.5.0'
$ update_rubygems
Since it's IntelliJ's ruby plugin that is managing the gems, I assume that I have to change the version of rubygems-update that the plugin is using.
Is this the right approach to take? And if so, can anyone tell me how to go about it?
I tried listing the gems but that gem is not shows so I must not be listing the gems in the right place, but I don't know where to look.
Many thanks :)
IntelliJ IDEA cannot handle it, you will need to install the appropriate rubygems version from the command line.
Note that your current rubygems-update version may be different, verify it with gem list and use the reported version when uninstalling.
When I used rails server command, found following errors in terminal. It shows that "could not find a JavaScript runtime". I am newbie in ROR and don't know to configure different files. I Google and found solutions of this problem 1 2 3. Still I am not getting the things. Please suggest some solutions.
Ruby and Rail versions on my system
Ruby version:- ruby 1.8.7 , Rails version:- Rails 3.2.6
I suppose you lack executable on your system/
Haven't you try to run gem install execjs or bundle install(from your project directory) in console?
UPDATE
Also visit execjs homepage and try instaling any of JS runtimes supported.
UPDATE 2
I was able to reproduce your error (with ruby 1.9.2). Just add gem 'therubyracer' to your Gemfile and run bundle install. For some weird reason ROR is not working out of the box on Ubuntu. See this and search for runtime word for more info.
PS
Please put your Gemfile here. This might help.
The error message also tells your to
See https://github.com/sstephenson/execjs for a list of available runtimes.
You have to install one of the JavaScript runtimes listed there:
therubyracer
therubyrhino
Node.js
Microsoft Windows Script Host
For Rails 3.2.6 I suggest to use Ruby 1.9.3. for better performance.
How can you determine which rubygem is being used in response to a "require" statement? gem which doesn't seem to help.
Background: for the project hornsby-herbarium-parser, I'm using the gem roo.
I used the github gem hmcgowan-roo , as at that time it was more recent than the rubyforge version of roo. I tried testing the code on runcoderun, and it failed because it doesn't have any version of roo. By this time, new versions of roo were available on both github and rubyforge.
I decided I may as well see if the latest version from rubyforge works for my code, as I assume rubyforge is more official, authoritative, and stable than github forks. Once I'm sure the rubyforge version works with my code, I'll ask runcoderun nicely if they can install it on their system.
I sudo gem installed roo, and my gems now include "hmcgowan-roo (1.3.5)" and "roo (1.3.6)", and running the tests for hornsby-herbarium-parser still pass. I know that as the rubyforge version was installed more recently, it ought to be the one being used in the tests, but I want to be able to verify this.
gem which roo
Didn't help, because it gave me
(checking gem hmcgowan-roo-1.3.5 for roo)
/usr/lib/ruby/gems/1.8/gems/hmcgowan-roo-1.3.5/lib/roo.rb
which I assume is the wrong answer.
Update: I used both
$:.detect {|dir| dir =~ /roo/}
and
puts Roo::VERSION::STRING
both agree with gem which, saying that I'm still using hmcgowan-roo-1.3.5.
puts Roo::VERSION::STRING
First of all, rubygems will load the highest version number gem, not the most recently installed. So you should be getting roo 1.3.6 here.
Other than that, I second gerrit's suggestion to look for a version constant. For instance, I just loaded rmagick and there is a constant Magick::Version. Another example is Open4::VERSION.
However not all gems have a version constant, so as a fallback you could do something hacky like:
>> require 'open4'
=> true
>> $:.detect {|dir| dir =~ /\/open4-([^\/]*)\//}
=> "/Library/Ruby/Gems/1.8/gems/open4-0.9.6/bin"
>> $1
=> "0.9.6"
gem list xxx
it defaults to load the latest version.
you can do use Gem::VERSION
require 'rubygems'; puts Gem::VERSION
that in a ruby program, which is quite useful if you want to make sure that your application under same version of rubygems accrossing all machines (e.g. bundler Gemfile)
The simplest way will be to uninstall and then reinstall the rubygems individually.
I'm not so sure that your assumption about github not having stable sources is so accurate.