rvm

问题 I get an error while trying to install the ffi gem: ~ - 16:54>gem i ffi Building native extensions. This could take a while... ERROR: Error installing ffi: ERROR: Failed to build gem native extension. rake RUBYARCHDIR=/home/mdemare/.rvm/gems/ruby-1.9.2-p136/gems/ffi-1.0.6/lib RUBYLIBDIR=/home/mdemare/.rvm/gems/ruby-1.9.2-p136/gems/ffi-1.0.6/lib /home/mdemare/.rvm/rubies/ruby-1.9.2-p136/lib/ruby/site_ruby/1.9.1/rubygems.rb:370:in `bin_path': can't find gem rake ([">= 0"]) with executable rake

问题 This question already has answers here : Closed 7 years ago . Possible Duplicate: Ruby 1.9.2 and Rails 3 cannot open rails console I have already installed rvm and ruby 1.9.2, both working properly. Using rvm version 1.10.2. I previously installed the rvm packages readline/zlib, but now I'm having big troubles with readline now. I'm trying to install ruby 1.9.3 in rvm, but I always end up having readline not found. I tried to follow different solutions: rvm remove 1.9.3 rvm pkg install

问题 I'm currently experiencing an issue with my new rails application, more specifically: Rails 5.2.0 Ruby 2.5.1p57 (2018-03-29 revision 63029) [x86_64-darwin17] rvm 1.29.4 (latest) by Michal Papis, Piotr Kuczynski, Wayne E. Seguin [https://rvm.io] When I run rails c , it produces a warning links to fileutils gem as the following: `/usr/local/Cellar/ruby/2.5.1/lib/ruby/2.5.0/fileutils.rb:90:` `warning:` `already` initialized constant FileUtils::VERSION /usr/local/lib/ruby/gems/2.5.0/gems

问题 I'm currently experiencing an issue with my new rails application, more specifically: Rails 5.2.0 Ruby 2.5.1p57 (2018-03-29 revision 63029) [x86_64-darwin17] rvm 1.29.4 (latest) by Michal Papis, Piotr Kuczynski, Wayne E. Seguin [https://rvm.io] When I run rails c , it produces a warning links to fileutils gem as the following: `/usr/local/Cellar/ruby/2.5.1/lib/ruby/2.5.0/fileutils.rb:90:` `warning:` `already` initialized constant FileUtils::VERSION /usr/local/lib/ruby/gems/2.5.0/gems

问题 I know that when using gem install , the gem will be stored under /home/username/.rvm/gems/, under which gemset the gem was installed. But if I use Bundler and specify the gem in the Gemfile, when I run bundle install, where will those gems be stored? And what if I already installed the gem using gem install , if I run bundle install, will it use the previous gem installed using gem install ? 回答1: It depends. In the usual development setup they are installed where they would be when you

问题 I'm getting the following error even though I currently do have the Bundler gem installed (it appears when I run $gem list). ERROR: Gem bundler is not installed, run `gem install bundler` first. I'm using RVM and my $PATH is as follows: /Users/cjstingl/.rvm/gems/ruby-1.9.2-p290@rails3tutorial2ndEd/bin: /Users/cjstingl/.rvm/gems/ruby-1.9.2-p290@global/bin: /Users/cjstingl/.rvm/rubies/ruby-1.9.2-p290/bin: /Users/cjstingl/.rvm/bin: /Users/cjstingl/.bin: /usr/local/sbin: /usr/local/Cellar/php/5.3

问题 This question was the second part of "What is "USER INSTALLATION DIRECTORY" in rubyGems env" but finally it wasn't answered. Now I'm wondering why in my case 'USER INSTALLATION DIRECTORY does not mach with the Ruby version. And another question is what option bundle install uses by default, maybe --user-install ? rvm list : * ruby-2.5.0 [ x86_64 ] => ruby-2.5.1 [ x86_64 ] ruby-2.6.0-preview1 [ x86_64 ] gem env : RubyGems Environment: - RUBYGEMS VERSION: 2.7.7 - RUBY VERSION: 2.5.1 (2018-03-29

问题 I'm having problems installing RVM on my mac. I took my computer in to have the fan repaired so I'm using my wives trying to set up my environment to get some work done. The problem I'm having is the bash_profile. Every time I add the function: [[ -s "$HOME/.rvm/scripts/rvm" ]] && . "$HOME/.rvm/scripts/rvm" # Load RVM function and then reload the shell I get the following error: -bash: export: -s': not a valid identifier -bash: export: /Users/Christine/.rvm/scripts/rvm': not a valid

问题 I'm trying to install Ruby with TK support. Using RVM, I did this: rvm install 1.9.2 -C --enable-shared --enable-pthread The installation appears to work fine, and I can see something called .rvm/src/ruby-1.9.2-p320/ext/tk/tcltklib.c which I assume is the library I need? I then try to run require 'tk' in irb, but get the error message LoadError: no such file to load -- tk Any ideas? Update: Fixed! If anyone is interested in the complete list of steps for a Ruby upgrade to 2.0.0 with TK

问题 I decided to upgrade to Ruby 2.0.0 and Rails 4.0.0. I'm trying to set these as my default programs, by using this line: rvm use 2.0.0@rails-4.0.0 --default I get the error Failed to load /Users/michaeldunnegan/.gemrc because it doesn't contain valid YAML hash My .gemrc file is blank. I don't know what to do. I can't find any references at all. 回答1: most likely it is not empty, there is a lot of UTF-8 characters that editor will not show you, just remove the file before continuing: rm -f