Some background info: I am an OS X user, and my MAC system is OS X
@1st problem (regarding Ruby on Rails installation):
I have installed ruby "1.9.2" with RVM. When I typed "ruby -v" command
in terminal after installation, it says that the ruby version I have
is "1.8.7". Strange, isn't it? So, I have tried "rvm use 1.9.2"
command, but it still says my ruby version is 1.8.7. I even re-
installed ruby 1.9.2 using RVM a few more times, but no luck. when I
typed "rvm list", it says "ruby-1.9.2-p290". Does that mean my rvm did
install ruby 1.9.2, but for some reason, i cannot get my RVM switch to
ruby 1.9.2 from ruby 1.8.7?
what can i do to use ruby 1.9.2??
By the way, when I typed "rvm info", and it says "ruby-1.9.2-p290" and
then all the other stuff explaning. Does that mean that my rvm already
has switched ruby to 1.9.2??? But, then, why "ruby -v" keeps saying
""ruby 1.8.7 (2009-06-12 patchlevel 174) [universal-darwin10.0]"???
It seems like OS X 10.6.8 already comes with Ruby 1.8.7, and should it
be the reason behind this problem?
Without being able to solve the problem above, I have continued Ruby
on Rails journey (have well installed rails 3.0.9 along with all the
others: rubygem, git, etc), and landed on the second problem.
@2nd problem (regarding lesson2: demo app):
With my attempt to make a demo app, I typed "rails generate scaffold
User name:string email:string" command in terminal to generata
resources. And, I have typed "rake db:migrate" to build Ruby. Then, I
got an error stating: "/Users/taek/.rvm/rubies/ruby-1.9.2-p290/lib/
ruby/site_ruby/1.9.1/rubygems.rb:314:in `bin_path': can't find gem
rake ([">= 0"]) with executable rake (Gem::GemNotFoundException)
When I googled, some posts suggested to delete rake.gemspec(in "/Users/
folder). Their point was that Ruby 1.9.2 comes with a version of rake
internally, so it has a problem finding it because of the rake.gemspep
file in "/Users/taek/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/gems/1.9.1/
specifications" folder. However, I was not able to locate that file
in my system ("/Users/taek/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/gems/
1.9.1/specifications" folder), so I deleted "rake-0.8.7.gemspec"(which
seems to be the same file as rake.gemspec) file instead. But, that did
not solve the porblem. Instead, it gave me another error, which is
LoadError. So, I restored "rake-0.8.7.gemspec" file in the
folder(since i made a back-up copy before deleting it). What can I do
to fix this problem? Would this problem related to the first problem
(that Ruby 1.8.7 is not installed in my system)?
Can anyone please help me?
Thank you in advance!