问题
I have spent the whole day trying to upgrade from Rails 4x to 5.2.1. I was following this guide for the upgrade and I was not able to upgrade successfully.
Issue:
After "successfully" installing Rails 5 using:
ruby 2.5.3p105 (2018-10-18 revision 65156) [x86_64-darwin17]
and did rails -v
I get:
rbenv: rails: command not found
The `rails' command exists in these Ruby versions:
2.2.0
Things that I have tried:
gem pristine different gems
gem pristine --all
this
and played around with paths but no luck so far.
Any help would be greatly appreciated
Additionally here is my gem environment:
RubyGems Environment:
- RUBYGEMS VERSION: 2.7.6
- RUBY VERSION: 2.5.3 (2018-10-18 patchlevel 105) [x86_64-darwin17]
- INSTALLATION DIRECTORY: /Users/Matt/.rvm/gems/ruby-2.2.0
- USER INSTALLATION DIRECTORY: /Users/Matt/.gem/ruby/2.5.0
- RUBY EXECUTABLE: /Users/Matt/.rbenv/versions/2.5.3/bin/ruby
- EXECUTABLE DIRECTORY: /Users/Matt/.rvm/gems/ruby-2.2.0/bin
- SPEC CACHE DIRECTORY: /Users/Matt/Tools/.rbenv/versions/2.2.0/lib/ruby/gems/specs
- SYSTEM CONFIGURATION DIRECTORY: /Users/Matt/.rbenv/versions/2.5.3/etc
- RUBYGEMS PLATFORMS:
- ruby
- x86_64-darwin-17
- GEM PATHS:
- /Users/Matt/.rvm/gems/ruby-2.2.0
- /Users/Matt/Tools/.rbenv/versions/2.2.0/lib/ruby/gems/2.2.0
- GEM CONFIGURATION:
- :update_sources => true
- :verbose => true
- :backtrace => false
- :bulk_threshold => 1000
- "gem" => "--no-document"
- REMOTE SOURCES:
- https://rubygems.org/
- SHELL PATH:
- /Users/Matt/.rbenv/versions/2.5.3/bin
- /usr/local/Cellar/rbenv/1.1.1/libexec
- /Users/Matt/.rbenv/plugins/ruby-build/bin
- /Users/Matt/.rbenv/shims
- /Users/Matt/.rbenv/bin
- /Users/Matt/anaconda/bin
- /Library/Frameworks/Python.framework/Versions/3.5/bin
- /Users/Matt/.rbenv/shims
- /Users/Matt/.rbenv/shims
- /usr/local/bin
- /usr/bin
- /bin
- /usr/sbin
- /sbin
- /opt/X11/bin
回答1:
You installed ruby
using rbenv
and now you can install gems. and rails
is a gem for ruby
. So, first to set the global version of Ruby you should create .ruby-version
file in your home directory and write your installed ruby version (2.5.3
) on it.
and then you should run gem install rails
command to install rails.
来源:https://stackoverflow.com/questions/53688962/rbenv-rails-command-not-found-immediately-after-installing-rails-5-2-1